Ten-pin bowling (commonly just "bowling" in the United States and the United Kingdom) is a competitive sport in which a player (the "bowler") rolls a bowling ball down a wooden or synthetic (polyurethane) lane with the objective of scoring points by knocking down as many pins as possible.
The 39-inch-wide (99 cm) 60-foot-long (18 m) lane is bordered along its length by semicylindrical channels (commonly called "gutters") which are designed to collect errant balls. The narrow lane prevents bowling a straight line at the angle required to consistently carry (knock down) all ten pins for a strike. Most skillful bowlers will roll a side spinning (hook shape reaction) ball to overcome this. There is a foul line at the end of the lane nearest to the bowler: if any part of a bowler's body touches the lane side of this line after the ball is delivered, it is called a foul and any pins knocked over by that delivery are scored as zero(0). (The bowler is allowed a shot at a new rack of ten pins if he fouled on the first roll of a frame.) Behind the foul line is an "approach" approximately 15 feet (5 m) long used to gain speed and leverage on the ball before delivering it. 60 feet (18 m) from the foul line, where the lane terminates, it is joined to a roughly 36-inch (91 cm) deep by 41.5-inch (105 cm) wide surface of durable and impact-resistant material called the "pin deck", where each rack of pins is set.
The bowler is allowed 10 frames in which to knock down pins, with frames one (1) through nine (9) being composed of up to two rolls. The tenth frame may be composed of up to three rolls: the bonus roll(s) following a strike or spare in the tenth (sometimes referred to as the eleventh and twelfth frames) are fill ball(s) used only to calculate the score of the mark rolled in the tenth.
Bowling has a unique scoring system which keeps track not only of the current score but also strikes and spares, which give multiple marks. Effectively, there are three kinds of marks given in a score; a strike (all ten down in the first ball), a spare (all ten down by the second ball), and an open (missed pins still standing when the turn ends). A strike earns ten points plus the points for the next two balls thrown (for example, if a player got a strike then followed with a 7 then 2, their value for the strike would be 10+7+2, or 19). A spare earns ten points plus the points for the next ball thrown (again, if a player gets a spare then follow it with 7 pins down, their value for the spare would be 10+7, or 17). Open frames are added normally (example: if a player knocks down 5 on their first ball and 3 on their second the open frame would be worth 5+3, or 8 points). The maximum score in tenpin bowling is 300. This consists of getting 12 strikes in a row in one game (one strike each in frames 1–9, and all three possible strikes in the tenth frame), and is also known as a perfect game.
In 1930, British anthropologist Sir Flinders Petrie, along with a team of archaeologists, discovered various primitive bowling balls, bowling pins and other materials in the grave of an Egyptian boy dating to 3200 B.C., which was over 5200 years ago, very shortly before the reign of Narmer, one of the very first Egyptian pharaohs. Their discovery represents the earliest known historical trace of bowling.[1][2] Others claim that bowling originated in Germany around 300 A.D.,[1][2] as part of a religious ritual in which people would roll stones at clubs (or "kegels") to absolve themselves of sins.[3]
A site in Southampton, England claims to be the oldest lawn bowling site still in operation, with records showing the game has been played on the green there since 1299.[4] The first written reference to bowling dates to 1366, when King Edward III of England banned his troops from playing the game so that they would not be distracted from their archery practice.[5] It is believed that King Henry VIII bowled using cannon balls. Henry VIII also famously banned bowling for all but the upper classes, because so many working men and soldiers were neglecting their trades.[4]
In Germany the game of Kegel (Kegelspiel) expanded. The Kegal game grew in Germany and around other parts of Europe with Keglars rolling balls at nine pins, or skittles.[6][7] To this day, bowlers in the United States and United Kingdom are also referred to as "keglers".
Ninepin bowling was introduced to the United States from Europe during the colonial era, similar to the game of skittles.[8] It became very popular and was called "Bowl on the Green". The Dutch, English, and Germans all brought their own versions of the game to the New World, where it enjoyed continued popularity, although not without some controversy. In 1841 a law in Connecticut banned ninepin bowling lanes due to associated gambling and crime, and people were said to circumvent the letter of the prohibition by adding an extra pin, resulting in the game of ten-pin bowling.[9]
A painting which dates from around 1810, and has been on display at the International Bowling Hall of Fame and Museum in St. Louis, Missouri (Jan 26, 2010: located at the International Bowling Campus in Arlington, Texas), however, shows British bowlers playing the sport outdoors, with a triangular formation of ten pins, chronologically before it appeared in the United States. A photograph of this painting appeared in the pages of the US-based "Bowler's Journal" magazine in 1988.[10]
Modern American ten-pin bowling is most closely related to the German nine pin game Kegeln. Germans were instrumental in fostering the game's popularity as they formed their own bowling clubs both before and after the American Civil War. The first indoor bowling alley was Knickerbockers of New York City, built in 1840. The Brunswick Corporation's addition of bowling equipment to their product line also served to increase the sport's popularity. In 1914 Brunswick replaced their line of wooden bowling balls, mostly made with lignum vitae, with hard rubber Mineralite bowling balls. The change was met with great approval.[11] Since being brought to the United States from Europe, ten-pin bowling (a modern version of the game of skittles) has risen in popularity as its technology has improved. The sport is most popular in the United Kingdom and the United States. Both nations maintain national regulatory organizations that govern the sport's rules and conduct, and many of those countries' best players participate in tournaments on both the national and international stage. Because of the rise in popularity, many companies are now making bowling balls and apparel for professionals as well as for recreational bowlers. Bowling has also become more prevalent in the media in recent years, with the continued popularity of bowling publications and the appearance of films centred around the culture of the sport. However, the sport continues to face challenges in garnering mainstream coverage of the athletic aspects of the game.
The modern, indoor game of bowling has long been seen as a sport of the working classes.[4] Accordingly, most bowling alleys at the turn of the century were small, private establishments, mainly frequented by men. This began to change as the sport became increasingly regulated and generally gained in prestige. Although it has not shed its working class image entirely, today bowling is now a unisex sport, and is enjoyed by people the world over. In 1895 the American Bowling Congress was started in New York City. This was soon joined by similar organizations geared toward female bowlers. These groups began creating the standard rules for bowling that have survived to the modern day. At the same time, the sport's image among the upper classes was enhanced by the opening of more luxurious and elegant alleys like The White Elephant in New York City, opened by restaurateur Joe Thum, whom many consider to be the father of bowling, along with Dick Weber. Thum created the first bowling organization in the United States on September 9, 1895, when he pulled together representatives of various regional bowling clubs into an overarching organization, the American Bowling Congress (ABC).
The period from 1940 to 1960 is known as the golden age of bowling due to the sport's great popularity increase and advances in its play. Indeed, by 1945, bowling was a billion-dollar industry in the United States. Promotion by the U.S. Armed Forces and its image as a sport for the common man made bowling an enticing choice of activity for Americans. For this reason, racial integration was perhaps inevitable. The American Bowling Congress had been a whites-only organization throughout its existence, but lobbying by numerous labor organizations and individuals after World War II, including Japanese-American Hiroto Hirashima, quickly led to a reversal of this policy.[12]
Bowling alleys built during this period often featured restaurants or nightclubs where locally or even nationally prominent entertainers would perform. In the 1948 movie Road House, the title refers to a large bowling alley with a nightclub attached, where much of the action takes place. The film provides a good historical glance at bowling alleys of the era.
This era also saw a great increase in bowling technology. Pins had previously been set by human pinsetters or "pin boys", but with the invention of the semi-automatic pinspotter in 1936, the process became much easier. In 1946 AMF Bowling launched the first commercial fully automatic pinspotter, the AMF Model 82-10, followed closely by the more developed 82-30 model (still in common use as of 2010) to replace the earlier Brunswick semi-automatic and fully manual bowling establishments. Brunswick itself introduced its own "Model A" automatic pinspotter design to bowling centers in 1955, and its successors (A2 and "JetBack", both with quicker delivery of returned balls over the Model A) are still in widespread use. The television age of the 1950s also helped to increase the popularity of ten-pin bowling, as images of the sport began to enter the homes of millions across the United States. Eddie Elias founded the Professional Bowlers Association in 1958, and its Pro Bowlers Tour became a permanent part of ABC's sports lineup by the early 1960s.[7]
Ten-pin bowling was introduced in the United Kingdom in 1960. This was driven by the opening of the Stamford Hill and Golders Green bowling alleys in London. Ten-pin bowling took the UK by storm, with alleys opening up one after the other. At its peak there were over 160 bowling alleys in the UK, but a lack of re-investment and waning interest left the fad in a sorry state. This led to a general deterioration of bowling alleys, with a commensurate decline in their image. In the 1970s a major chain operator pulled out of bowling and converted many of the more luxurious alleys into Bingo halls. The industry nearly collapsed, with two thirds of the existing alleys closing over the next few years.
The United States, meanwhile, saw league bowling soar in the 1960s and early 1970s—partially influenced by popular professional bowlers Don Carter, Dick Weber, Carmen Salvino and Earl Anthony. The number of sanctioned bowling alleys in the U.S. peaked at about 12,000 in the mid-1960s,[4] while membership in the American Bowling Congress also peaked at just under 4.6 million male bowlers.[13] The popularity of the sport in America was perhaps no more evident than when Don Carter became the first athlete of any kind to sign a US$1 million endorsement contract, inking a multi-year deal with Ebonite International in 1964. By comparison, Arnold Palmer earned just $5,000 in 1961 endorsing Wilson golf equipment, and NFL quarterback Joe Namath made just $10,000 in 1968 to famously shave off his moustache with a Schick razor.[14]
Until the mid 1980s there was little, if any, new investment in the sport, with the decline in interest being partially attributed to the complex scoring system, especially as it was a manual process then. However, this all changed with the appearance of two unrelated phenomena: the introduction of automated electronic scoring systems and a surprise boost from the otherwise unregarded 1982 film, Grease 2.[15] The first meant that the general public only had to enter their names into the computers and everything else was done automatically. The second event was spurred by what is regarded by some [16] as one of few redeeming musical numbers in the film, Score Tonight. This segment touched off a huge wave of interest in the sport among young people.[17] Prior to the film, bowling was largely viewed as an older person's or "gentleman's" sport. Grease 2 ushered a new generation to the game. These two factors changed the face of bowling and are largely responsible for the new found interest in the sport.
Re-investment in the 1980s led to the construction of many bright, modern and attractive sites and began the second golden age of bowling. During the late 1980s and early 1990s the number of ten-pin bowling alleys across the UK rose to over two hundred. This was higher than it had ever been in the sixties, then the peak of the sport's popularity.
Today, over 100 million bowlers play in over 90 different countries. More men and women worldwide bowl than play any other sport, with the possible exception of football (soccer in the United States, Canada, Australia and South Africa). Bowling has far more registered dues-paying participants than any other sport. The United States Bowling Congress, for example, reported over 2.6 million members in 2008.[18] The bowling industry spends significantly more money each year than any other sport on airlines, restaurants, hotels and rental cars.[19] There is an active movement to make bowling an Olympic sport, especially by the Fédération Internationale des Quilleurs or FIQ, the world governing organization for nine and ten-pin bowling, and in 1998 ten-pin bowling was included for the first time as a sport at the Commonwealth Games. The most elite players regularly play in televised tournaments, and new bowlers continue to delight in learning the game.[7] In addition, modern bowling alleys have changed greatly. As people have become exposed to a wider range of entertainment options, the trend has shifted to building large entertainment centers that allow people to enjoy many different activities. These developments often include game rooms, multi-screen cinemas, restaurants and night clubs. This has had a great impact on the image of the sport among families.[6]
A game of ten-pin bowling is divided into ten rounds (called "frames"). In a frame, each player is given two opportunities to knock down the skittle targets (called "pins"). The player rolls the first ball at the pins. If the first ball knocks down all ten pins, it is called a "strike" and the frame is completed. When pins are left standing after the first ball, those that are knocked down are counted and then removed. Then the player rolls a second ball and if all the remaining pins are knocked down, it is called a "spare". There are bonuses for removing all the pins. If there is more than one player scheduled on a lane, play passes to the next player until all players have completed the frame. Then play continues with the next frame. The final or tenth frame of a game may involve three balls. See Scoring below.
The ten pins are usually automatically set by machine into four rows which form an equilateral triangle where there are four pins on a side (Pythagorean Tetractys). There are four pins in the back row, then three, then two, and finally one in the front at the center of the lane. The pins are numbered one through ten, starting with one in front, and ending with ten in the back to the right. This serves to ease communication; one could say that the 4 and 7 pins were left standing. Neighboring pins are set up 12 inches (30 cm) apart, measured from center to center. Due to the spacing of the pins and the size of the ball (about 8.6 inches (22 cm) in diameter), it is impossible for the ball to contact every pin. Therefore, a tactical shot is required, which would result in a chain reaction of pin hitting pin. In an ideal shot, for a right-hander, the ball will contact only the 1, 3, 5 and 9 pins; for a left-hander, the 1, 2, 5 and 8 pins. The term "Brooklyn" is used to describe when a bowler obtains a strike by throwing the ball into the opposite pocket, known as the Brooklyn pocket. For example, a Brooklyn would occur when a right-handed thrower obtains a strike by throwing a ball into the 1-2 pocket, and similarly a strike occurs for a left-handed bowler throwing a ball into the 1-3 pocket.
In order to count, a pin must be knocked over entirely. If the pin is wobbling as the automatic pin machine picks it up (or the machine itself knocks over the pin while it is wobbling), it is still considered standing and is not scored. Also, if a pin is moved, it does not change its designation. For example, if the 10 pin were still standing and the 7 pin slid into the 8 pin position, converting this spare would still be considered and given a 7-10 split award (if performed in sanctioned play).
There are generally 2 primary styles of rolling the ball down the lane. Most newer players play by rolling the ball straight, hopefully into the 1-3 pocket for right-handed bowlers or the 1-2 pocket for left-handed bowlers. More experienced bowlers usually roll a hook, which means that they make the ball start out straight and then curve towards the pocket. There are two ways to produce a hook. In the first, the player lets go of the ball with his thumb first, then the middle and ring finger release almost simultaneously. This gives the bowling ball its spin needed for the hook. If the player is right-handed, an ideal position of the thumb after letting go of the ball is "10 o'clock", meaning that the thumb has gone from 12 to 10, as looking at a clock. The corresponding position for left-handed players is 2 o'clock. Of course, there are innumerable variations in style and technique and the position of the thumb can vary from person to person. The second way is to hold the ball without the thumb in the thumb hole. This uses one or two fingers to produce the hook. Some bowlers will use none of their fingers. Lab research has shown that the ideal shot will enter the pocket at an angle of 6 degrees with respect to the lane boards, which means that a straight ball should be thrown from the side of the lane, near the gutter.
More seldom, a player will use two hands where the fingers of one hand are placed in the holes as in a standard throw, while placing the other hand over the front of the ball and releasing the ball in the form of a "shovel-pitch" from the side.
A typical bowling ball is designed to roll vertically, and the core is naturally lop-sided so that the ball will hook naturally if the thumb and finger holes are drilled in the proper places. In parts of Asia, where oil conditions are more difficult and lanes maintenance is poor, hooking the ball makes bowling more difficult. The "spinner", "helicopter" or "UFO" release is popular, especially among females. A top spinning bowling ball will slide (rather than roll vertically,) but also roll horizontally down the lane, and will always roll straight regardless of the oil pattern applied to the lane. Because of the horizontal spin, the ball will take an unconventional path through the pins at impact, creating a domino effect pin reaction not normally seen when using more conventional releases. The spin is generated by rotating the two fingers to the 12-o'clock position at the point of release. The two fingers release first, while the thumb stays in the ball. The thumb alone is used to create the horizontal spin, by rotating the hand clock-wise (right-handed) and then the thumb is released. This technique is not seen frequently in world-class competition where oil patterns are more standardized. Spinning is difficult to master (and can even cause injury) with a ball heavier than 12 lb. Using a lighter bowling ball causes results like a weak 5-pin more frequently. Using the spinner technique is seen more frequently in Taiwan and Hong Kong.[20]
Some extremely young or physically challenged players may use both hands to swing the ball forward from in between their legs. This kind of style has the bowler start close to the foul line, and is called the "Granny style" or the "Pee-Wee method". In recent years, the new two-handed "shovel" style hook release is gaining more popularity, as it generates more revolutions and speed to knock down pins. Two well-known two-handed bowlers are Jason Belmonte (Australia) and Osku Palermaa (Finland). Another method for novice bowlers is the "bounce pass" technique which is performed by thrusting the ball from your chest with two hands towards the pins. This technique is easily picked up by weaker players but is seldom used because it is frowned upon by the bowling community due to the potential to damage the lanes and/or ball.
There are three widely recognized delivery styles used while the ball is released onto the lane. (See article: Bowling form.) Theses are the "stroker", "cranker" and "tweener" styles.[21]
Strokers often keep their shoulders square to the foul line and their backswing generally does not go much above parallel to the ground. This type of delivery reduces the ball's rate of revolution, thus decreasing its hook potential and hitting power. Strokers rely on finesse and accuracy, as opposed to crankers, who use speed and power. However, today's modern reactive resin bowling balls now allow strokers to hit the "pocket" at a relatively high angle. Stroking is considered the most classic of all the bowling forms and is still the most popular style of bowling in the PBA. Walter Ray Williams, Jr., the PBA's all-time leader in titles and earnings, is a stroker.
The cranker strives to generate revolutions using a cupped wrist or excessive wrist action. Crankers who rely on wrist action may have a high backswing and open their shoulders to generate ball speed. These bowlers often cup the wrist, but open the wrist at the top of the swing. Crankers may also muscle the ball with a bent elbow because their wrist is not strong enough to be cupped at the release. Crankers often use "late" timing, where the foot gets to the foul line before the ball; a technique known as plant and pull, hardly using any slide on their final step and pulling the ball upwards for leverage. The timing between the feet and the ball being delivered is only a fraction of a second. PBA Hall of Famer Mark Roth is a great example of a Cranker.
Tweeners (a term derived from "in-between") are bowlers that deliver the ball in a manner that falls somewhere in between stroking and cranking. This modified delivery could use a higher backswing than is normally employed by a pure stroker or a less powerful wrist position than a pure cranker. Some use the term to refer to a bowler who is simply not a "picture perfect" example of either a stroker or a cranker.
There are systematic ways of using the lane arrow marks and approach dots to make it easier to line up a shot, increasing consistency of hitting the pins at the correct location every time. For beginners, it also helps eliminate fear of the channels, and places the focus solely on the lane. Most bowlers are taught to utilize the arrows, as the arrows are nearer to the point where a hooking ball starts to hook back towards the pins. Other bowlers utilize the dots if they find themselves pulling their body up at the foul line (the shoulders should stay level throughout the entire approach,) as this is usually caused by them thinking that the arrows are too far out at the lane. Advanced players often use the lane boards themselves to line up shots that require them to aim between arrows.
The conventional bowling footwork styles use either a four or five step approach beginning 8 to 16 feet (2.4 to 4.8 meters) behind the foul line.
The regulations listed here are generally based around regulations set by the United States Bowling Congress[22] and the British Tenpin Bowling Association.[23] These rules are followed by all sanctioned leagues and events, such as tournaments.
This information is clarified by the World Tenpin Bowling Association in its "Statutes and Playing Rules".[24]
The sport of ten-pin bowling is performed on a straight, narrow surface known as a lane. This bowling lane is 60 feet (18.29 m) from the foul line to the head pin (1-pin). About 15 feet (4.57 m) from the foul line are a set of guide arrows. The lane is 41.5 inches (1.05 m) wide and normally consists of 39 wooden (commonly rock maple in the "heads", 1st 15' of lane, and for the pindeck, which begins about 2' in front of the head pin. middle of lane is a soft wood) boards or a synthetic material. The bowling lane has two sets of approach dots; from the foul line back to the first set of approach dots is about 12 feet (3.66 m) and to the second set of approach dots is about 15 feet (4.57 m) (an additional 3 feet (0.91 m)). Although this figure varies, the lane is protected by about 18 ml of oil (also known as "the shot"). The PBA events use about 30 ml of oil, and the PWBA events use 25 ml. The oil starts from about 4 inches from the foul line and is applied for about 38 feet (11.58 m) down the lane from that point.
USBC rules specify that a pin must be 15 inches (38 cm) tall and about 4.7 inches (12 cm) wide at its widest point, where a rolling ball would make contact. There are additional measurements which delineate the shape. The weight of a single pin must be at least 3 pounds 6 ounces and no more than 3 pounds 10 ounces (1.53–1.64 kg). Within a set of ten pins, the individual weights may vary by no more than 4 ounces (113.4 g), if made from wood or plastic coated, or just 2 ounces (56.7 g) if synthetic. The top of the pin shall have a uniform arc with a radius of 1.273 ± 1/32 inches (32.33 ± 0.79 mm).
The USBC also has regulations governing the weight distribution of the pin from top-to-bottom. Pins are allowed one or two "voids" (holes) in the belly area (which can be viewed if the pin is cut in half from top-to-bottom). The voids are needed to balance the narrower top half of the pin with the wider bottom half. Without them, the pins would be too bottom-heavy to fall properly when struck. In addition a standard regulation pin may lean no more than 43 degrees off center without falling.
The pins must show the name and mark of the maker, either "USBC Approved" or "BTBA Approved" and appear uniform.
The head pin or 1 pin stands on board 20 of the lane.
The circumference of the ball must not be more than 2.25 feet (0.69 m), and the ball cannot weigh more than 16 pounds (7.26 kg). The ball must have a smooth surface over its entire circumference except for holes or indentations used for gripping the ball, holes or indentations made to bring the ball back into compliance with weight-distribution regulations, identification letters and numbers, and general wear from normal use.
For much of the history of bowling, bowling balls were made using a three piece construction method. Starting in the mid 1990s, however, most manufacturers switched to a two-piece method. In response to these innovative ball designs, the American Bowling Congress placed further restrictions on the technical characteristics of the ball such as the radius of gyration and hooking potential.[5]
A game of bowling consists of ten frames. In each frame, the bowler will have two chances to knock down as many pins as possible with his bowling ball. In games with more than one bowler, as is common, every bowler will take his frame in a predetermined order before the next frame begins. If a bowler is able to knock down all ten pins with the first ball, he is awarded a strike. If the bowler is able to knock down all 10 pins with the two balls of a frame, it is known as a spare. Bonus points are awarded for both of these, depending on what is scored in the next 2 balls (for a strike) or 1 ball (for a spare). If the bowler knocks down all 10 pins in the tenth frame, the bowler is allowed to throw 3 balls for that frame. This allows for a potential of 12 strikes in a single game, and a maximum score of 300 points, a perfect game.
In general, one point is scored for each pin that is knocked over. So if a player bowls over three pins with the first shot, then six with the second, the player would receive a total of nine points for that frame. If a player knocks down 9 pins with the first shot, but misses with the second, the player would also score nine. When a player fails to knock down all ten pins after their second ball it is known as an open frame.
In the event that all ten pins are knocked over by a player in a single frame, bonuses are awarded.
Two consecutive strikes are referred to as a "double".
A double's pinfall is:
Three strikes bowled consecutively are known as a "turkey" or "triple".
A turkey's pinfall is:
Longer strings of strikes are called by various names, including "-Bagger" (Four Bagger) and "-Pack" (Six Pack) depending on local use, equipment, and exposure to the sport.[25][26] Recently, the event of bowling four consecutive strikes has also been called a "hambone".[27] Six strikes and nine strikes in a row can also be referred to "Wild Turkeys" and "Golden Turkeys" respectively. Any string of strikes starting in the first frame or ending "off the sheet" (where all of a bowler's shots from a certain frame to the end of the game strike) are often referred to as the "front" or "back" strikes, respectively (e.g. the "front nine" for strikes in frames 1–9, or the "back six" for strikes in frames 7, 8, and 9 with a turkey in the tenth). A "perfect game" or 12 strikes in a row is also rarely referred to as the "Thanksgiving Turkey". A "Clean Game" is a game with strikes or spares in every frame (not counting bonus balls).
A player who bowls a spare in the tenth (final) frame is awarded one extra ball to allow for the bonus points.
Correctly calculating bonus points can be difficult, especially when combinations of strikes and spares come in successive frames. In modern times, however, this has been overcome with automated scoring systems, linked to the machines that set and clear the pins between frames. A computer automatically counts pins that remain standing, and fills in a virtual score sheet (usually displayed on monitors above each lane). However, even the automated system is not fool-proof, as the computer can miscount the number of pins that remain standing.
The maximum score in a game of ten-pin is 300, scored by making 12 strikes in a row. On Feb. 2, 1997, University of Nebraska sophomore Jeremy Sonnenfeld became the first person ever to roll three perfect games of 300 in a three-game series (as approved by the American Bowling Congress). This has only been achieved a handful of times since.
In Britain, the youngest bowler ever to achieve a perfect single game score of 300 (12 consecutive strikes), in a sanctioned competition was 12 years, 71 days old Elliot John Crosby, at AMF Purley in South London, England in the Surrey County trials on January 7, 2006.[28] Crosby beat the previous British 300 shooter record holder Rhys Parfitt by more than a year. Parfitt was 13 years, 4 months when he achieved a 300 point game at the London international tenpin bowling tournament in 1994. In the United States, the youngest ever bowler to achieve this in a sanctioned competition is two-handed bowler Chaz Dennis of Columbus, Ohio. He achieved this competing in the Hillcrest Preps-Juniors league at Hillcrest Lanes in Columbus, Ohio on December 16, 2006, at 10 years, 88 days old. Dennis was 20 days younger than the previous record-holder, Michael Tang of San Francisco, California, who set his record when he was 10 years, 108 days old competing in the Daly City All Stars Scratch Trios League at the Sea Bowl in Pacifica, California.[29]
Scoring may change from the above for high profile games, non-traditional games (like a 40 frame game), and variations of computer systems from age, manufacturer, or center programming. Televised games score assumes strikes for unbowled frames as needed to score bowled frames. Some computer systems use 0 instead of dash in some situations. The forty frame game gives bonus points and takes away points depending on frame. Games bowled at the National level typically do not show detail on most shots. Some computer systems will not tally scores if you string strikes to help control nerves. Most scoring modifications are just extensions of the existing rules, and the end result is the same once the game is complete.
The "Weber Cup" is the ten-pin bowling equivalent of golf's Ryder Cup.It is the world famous major world tournament of Team Europe vs. Team USA bowling championships that happens annually. Other major world-famous bowling tournaments include the World Tenpin Masters and the Qubica/AMF World Cup.
All of the three world major bowling tours above are televised on Sky Sports by Matchroom Sport. All three events are also presented by broadcaster and journalists, Nick Halling and Cass Edwards.
There is also the influential European Tenpin Bowling Federation, which has the prestigious European Bowling Tour, and under that the PTBC Storm English Open.
Among the leading world tournaments is the Professional Bowlers Association (PBA) Tour. The PBA Tour takes place in North America, except for one stop in Japan (Dydo Japan Cup) that is considered a PBA event. This tour has 20 or more events per year (running from October to April), and includes four major championship events: the PBA U.S. Open, USBC Masters (known as the ABC Masters prior to 2005), the Tournament of Champions and the PBA World Championship. Although PBA headquarters are based in the U.S., the PBA has members from all over the world whom also compete in all of its events. The PBA tour is televised in America and certain parts of the world by ESPN and ABC.
Along with increased coverage in recent years, these tours have become more profitable for bowlers. Earl Anthony, who bowled left-handed, became the first bowler to earn more than $100,000 (U.S.) in a single season when he finished the 1975 PBA Tour schedule with $107,585. He broke the $1 million mark in career earnings in 1982. The PBA now has some single tournaments that pay $100,000 to the winner. Norm Duke is the youngest person to win a PBA Tour tournament. He won the 1983 Cleveland Open at age 18 years, 345 days. The youngest person to bowl a PBA event is 15-year-old Jack Perry of Ontario, Canada, who rolled in the 2004 PBA World Championship. The oldest player to win a regular PBA Tour title is John Handegard, who won the 1995 Northwest Classic at age 57 years, 139 days. Walter Ray Williams Jr. is the all-time leader in PBA titles with 47.
The USBC (United States Bowling Congress) has two major "open" championship events: the USBC Open Championships and the USBC Masters (known as the ABC Masters prior to 2005). For female bowlers, the USBC sanctions the U.S. Women's Open, USBC Queens (known as the WIBC Queens prior to 2005) and USBC Women's Championships.
There is also the Commonwealth Tenpin Bowling Championships.
Ten-pin bowling has an international ranking system, as with professional tennis. This ten-pin equivalent is known as the World Ranking Masters and is made of three vast tours: the European, Americas and Asian bowling tours.
Other minor tournaments, although major in their respective countries, include Britain's prestigious BTBA Nationals (BTBA National Championships), the Brunswick Ballmaster Open, Brunswick Euro Challenge in Greece, ETBF European Youth Championships, the European Gold Cup and the Mediterranean Challenge Cup. The world's premier amateur event is the FIQ World Championships (Fédération Internationale des Quilleurs) which is held once every two years.
Traditionally, a major form of organized bowling has been through league competition. Leagues are typically groups of teams that compete with one another over the course of a 28 to 36 week season, generally starting in September and ending in the spring. Summer leagues are often offered with a much shorter schedule of 10 to 15 weeks, usually starting in May. Additionally, "short" (~12 week) season leagues are now offered in many bowling centers to entice bowlers who may not want to commit to a "long" season league. These "short" leagues generally start around September/October and January/February.
In most leagues, teams of individuals bowl three games (called a "series") each. A typical league will schedule two teams to compete against one another each week. Usually the winner of each game is decided by adding up the scores of all teammates (plus a team "handicap" in most leagues). Leagues typically decide standings by awarding a certain number of points for each team game win. Additionally, points are usually awarded for total pincount for each team over the course of all three games (commonly referred to as "total wood"). Some common methods for calculating points in a given three-game match include:
The 7- and 8-point systems are favored, because a tie game can result in each team getting one point. (In a 4-point system, half-points would be required for ties.) Throughout the course of a season, each team will usually face all of the other teams in scheduled competition. "Position Rounds" are often added at one or more points of the season, where 1st place bowls against 2nd place, 3rd place bowls against 4th place, and so on.
There are some leagues now that are organized as "match point" leagues. In these leagues, each bowler on a team bowls "head-to-head" against his opponent for points, and, along with the team game points and total wood, the point system can total 30 or more.
Leagues can have various formats. While most leagues are mixed leagues, containing both men and women, men's and women's leagues are still common, along with junior leagues for young bowlers. There are also different types of competition. Scratch leagues are those in which the actual pin count determines the winner. Most leagues are not scratch, but handicap leagues.
In handicap leagues, the scores are a combination of the actual pins knocked down, plus addition of a handicap value, to give teams with lower averages a chance to compete against teams that have higher averaged bowlers. The handicap system provides a means to compare scores across the whole league. When computing averages, however, resultant totals that have a decimal component (numbers to the right of the decimal point) discard all numbers to the right of the decimal point, leaving only a whole number, as rounding any decimal number equal or higher than 0.500, "up" to the next highest whole number when calculating averages is prohibited by USBC rules on scoring in tenpins.
Currently, over 2.5 million people compete in bowling leagues in the United States. At its peak in 1980, over eight million men and women competed in leagues throughout the United States.[30]
While league bowling and tournaments are very important in the bowling world, there is also another side to the game which must not be forgotten. Fun games give players a break from normal bowling, and can often be played competitively. Some give bowlers a chance to practice picking up odd pins—some of which they might not come across very often in a normal game. Others give youngsters a chance when bowling against more experienced bowlers.
In this game the bowler does not need to knock down all ten pins to score a strike. A no-tap value is assigned to each bowler, which states the number of pins each must knock down to score a strike, and can be from 3 to 9, meaning with a no-tap of 9, if 9 pins are knocked down, it is scored as a strike. As each bowler can have his own no-tap value, novices and experienced bowlers can compete together.
This is a game of chance which uses colored pins in the pin deck. When the colored pins are set in a designated position and the bowler records a strike, spare or split, he is awarded a prize from the bowling center.
This is similar to Monte Carlo although it is played with only one colored pin in the pin deck, and the bowler only receives a prize if they score a strike when the colored pin is the head pin (1).
In this game there is only one ball thrown per frame. If the pinfall is an even number, the frame is scored as a strike. If the pinfall is an odd number, the frame is scored as a spare where the first score of the frame is the pinfall number.
This is a team game with 2–5 bowlers per team. All bowlers bowl as usual, and the best score out of all bowlers in the team is used to score the "team game".
In Low Ball the lowest possible score wins. The bowler MUST knock down at least one pin for every ball thrown. Gutter balls and misses are counted as 10 points. The lowest possible score is 20. This game is very competitive and great for practicing picking up the sometimes elusive 7 or 10 pins.
This incorporates the card game where the best hand wins. The game is played in the traditional way, but for every strike, or spare, a card is dealt. The game is also played in another way in which you are dealt a card for a strike or split. At the end of the game, the best five-card stud poker hand wins the game. Each lane uses a standard 52-card deck. Some rules designate that no more than five cards can be dealt to each player. Others allow an additional card to be drawn each time a bowler gets a spare/strike after reaching five spares/strikes in a game. The additional card can be exchanged with one in the bowler's original 5-card hand, while a card from the hand is discarded.
A variation of the game for beginners or children, in which barriers known as bumpers are placed at the edges of the lane, keeping errant balls in play and out of the gutter. Modern bowling alleys often have retractable bumpers which are automatically raised or lowered depending on whose turn it is to bowl. Bumper Bowling was started in 1982 by Phil Kinzer at Jupiter Lanes in Dallas, TX. Originally, it was not intended to be a worldwide phenomenon as it was designed for his son. The first more popularly used types of bumpers were carpet rolls. The second generation were blocked foam pads, then came the inflatable tubes that most remember. After that, there have been many different generations of the modern bumper system that the public will see today. The term "bumper bowling" is owned by AMF now and operates out of Dallas, TX.
Also known as the "Johnny Petraglia" scoring system, it was actually used in the 2009 and 2010 PBA Women's Series for its year-end PBA Women's Series Showdown event. In this system a player rolls as many balls as it takes for all ten pins to be cleared from the deck. Each roll counts 1 point and the winner is the player with the fewest throws. There are no bonus balls in the 10th frame, and a "perfect" score would be 10.
This type of open bowling is also common in tournaments played by leagues as a break from regular bowling as well as (in youth leagues) to introduce youths to a different type of competition. Teams are made up of two bowlers, one bowls the first ball, and the other bowls the second(trying to pick up the spare left by the first bowler). If the person who is bowling the first ball rolls a strike, positions switch: the bowler who bowled the first ball (that bowled the strike) now throws the second ball, and the bowler who shot the second ball to pick up the spare now bowls the first ball until he/she gets a strike and positions reverse again.
In this simple variation, players use a lesser weighted ball (e.g. 6 pounds) rather than a regulation one. This keeps veteran players on their toes and levels the playing field in mixed experience groups. The origin of this game type is unknown, but it has become popular among casual and recreational players.
In ten-pin bowling there are two major world organisations which govern the sport and have predominant influence over its rules. These two central bodies are based in the United Kingdom and the United States, but their influence and ascendant ruling are highly respected globally and are projected worldwide. Additionally, there is the World Tenpin Bowling Association (WTBA), a part of the FIQ organization, who governs the sport of tenpin bowling throughout the world of which is divided in three zones; the American Zone, Asian Zone and European Zone.
In the United Kingdom, ten-pin bowling is sanctioned and governed by the BTBA (British Tenpin Bowling Association). The BTBA is devoted to the interest of the game itself and like the US equivalent it ensures the integrity and protection of the future of the sport, providing programs and services and enhancing the bowling experience, including a coaching education and qualification system. The NAYBC (National Association of Youth Bowling Clubs) is responsible to the BTBA for organizing ten-pin bowling for the under-18-year-olds. There is also the Tenpin Bowling Proprietors Association (TBPA), the trade association for ten-pin bowling of Britain. For BTBA qualified Instructors and Coaches the British Tenpin Bowling Coaching Association has been set up to help with the exchange of information and ideas between members. In addition, affiliated to the BTBA is the Young Adults Club (YAC).[31][32] University & College tenpin bowling was administered jointly by the UCTBA (Universities & Colleges Tenpin Bowling Association) and the Tenpin Bowling Sport Management Group of BUCS (British Universities & Colleges Sport) until the Summer of 2007. Since then, the two organizations have combined under the BUSA name.
In the United States of America, the governing body of ten-pin bowling is the USBC (United States Bowling Congress). The USBC became the "administering organization" on January 1, 2005, after following separate groups merged: the American Bowling Congress (ABC), which was the earliest founded (in 1895) of the USBC's constituent organizations, and the first codifier of ten pin bowling rules and equipment specifications; the Women's International Bowling Congress (WIBC), founded in 1927 as the women's equivalent of the then "male-only" ABC; the Young America Bowling Alliance (YABA), formerly known as the American Junior Bowling Congress (AJBC); and College and USA Bowling. The USBC's main function is to ensure the integrity and protect the future of the sport, while providing programs and services to enhance the bowling experience. These names have since changed in 2005 to USBC Men, Woman, Or Youth and no longer use ABC, WIBC, or YABA. The International Bowling Hall of Fame in St. Louis, Missouri includes separate wings for honorees of the American Bowling Congress (ABC), Professional Bowlers' Association (PBA), and Women's International Bowling Congress (WIBC). The museum does not include the new Ladies Pro Bowlers Tour Hall of Fame, which is located in Las Vegas, Nevada.
In 2008, the USBC moved its headquarters from Greendale, Wisconsin to Arlington, Texas.[33] They have announced that the Bowling Hall of Fame will also be moving from St. Louis to the Arlington location, and that the move should be completed by 2010.
In Australia the the governing body is called the TBA http://www.tenpin.org.au/. "National governing body representing the sport at federal government and international affiliation levels and focusing on total governance of the sport."
In the United Kingdom, UK Sport, the official sports body that governs drugs testing on ten-pin bowlers and other athletes in the UK on a regular basis and is conducted by a Doping Control Officer (DCO), is Britain's "National Anti-Doping Organisation" (NADO). It is a subsection of the internationally recognized and authoritative World Anti-Doping Agency (WADA). WADA is recognised by the Olympic Games and Commonwealth Games of which ten-pin bowling plays a part.[34]
In December 2005, at the Premier Tenpin Bowling Club Tour (PTBC), hosted by Airport Bowl, two of Britain's BTBA Nationals Team England were banned for testing positive for chemicals produced from the consumption of cocaine. UK Sport was responsible for the testing and reported their findings to the BTBA governing body. The individuals were subsequently banned for two years, which is standard WADA recommendation. They were due to be re-instated into the official bowling tournament community in early 2008, subject to WADA and BTBA review. This story was first reported on in Go Tenpin magazine.[35]
Pin characteristics, the bowling ball, and the lane surface are regulated by the USBC, BTBA and others. Technological changes throughout the history of the sport have often required new regulations. This continues today, often with great debate. The controversies usually involve "scoreability" related to greater strike carry on less-than-perfect shots. The increasing frequency and degree of higher scoring irks many bowling purists, who say that it is damaging the integrity of the sport.
Before 1970, nearly all bowling balls had a hard rubber surface. As the coatings applied to wood lanes changed from softer lacquer to a harder urethane in the early 1970s, the first plastic balls became widely available. Subsequent changes since the early 1980s—particularly urethane surfaced and later "reactive" resin or composite ("particle") surfaced bowling balls—have been altering the physics of how the ball rolls and strikes the pins. Coupled with synthetic lane surfaces and advanced oiling machines presenting the opportunity to lay out lane oil patterns that make targeting easier, there have been numerous concerns. Honor scores (for 300 games, 800 series, etc.) have increased by several thousand percent on a per-member basis in the time period from 1980 to the present. To many, this has cheapened the intrinsic value of honor scores and created other workarounds.
Up until the early 1970s, the ABC/WIBC honor awards were genuine treasures because they were so rarely won. In response to the view that advanced equipment is spoiling the integrity of the sport, the USBC introduced in 2000 the "Sport Bowling" program which offers a different optional league certification and the USBC provides a separate set of honor awards. In Sport Bowling, lane conditions are more highly regulated and controlled than in traditional leagues, and the oiling patterns used are generally more even with regards to volume and ratios of oil across the surface of the lane. Sport Bowling conditions are similar to those used at some major championships of professional bowling, particularly the U.S. Open. In more recent years, "PBA Experience" leagues have been introduced that allow bowlers to compete on the five main lane conditions currently used on the PBA Tour.
Not everyone has embraced the Sport Bowling concept. PBA Hall of Famer Johnny Petraglia argues that Sport Bowling combats changes in bowling balls simply by making it tougher to roll a shot into the "pocket" (the 1-3 pins for a right-hander, 1-2 pins for a left-hander). According to Petraglia, Sport Bowling is merely an attempt to "create the scores that were shot 30 years ago. The problem is, 30 years ago the game wasn't tougher. You could hit the pocket as easily as you do now, but you couldn't knock over the same [number] of pins with a rubber bowling ball. Sport bowling is, for the first time, intentionally trying to make the lanes tough."[36] Petraglia's suggestion to combat high-tech bowling balls is to use heavier pins that are single-voided on the bottom (versus double-voided), making them less top-heavy.
Bowling alley proprietors and lane maintenance personnel have also argued that changes in ball technology have made it more difficult to lay out fair and credible conditions for participants. This is because advanced players using high-tech balls need more oil to score high, and might complain about the radical behavior of their balls on "dry" lanes. At the same time, less aggressive players with older equipment might complain when they cannot get their balls to hook on ever-increasing amounts of oil. Such complaints about lane conditions have actually been part of the game throughout bowling history, and will likely continue.
Among advanced players, there is little argument about whether technological changes have enabled higher scoring. The general consensus has been that they have. Yet there are those who have seen their scores decline, often due to not changing their technique or bowling balls appropriately. Some argue that such high technology unfairly affects competition, making high scores too dependent on how much money one spends on equipment. The USBC, for various reasons, has struggled to regulate these changes well enough to protect the integrity of their honor score award program.
The problem mostly stemmed from the feature of modern oil patterns, especially house patterns that help exhibit performance of modern bowling balls allegedly due to marketing reasons. Every such pattern provides better odds to bowlers with certain line of bowling, release, ball speed and certain type of bowling balls. If a bowler has a specific form of bowling suitable for a specific oil pattern, coupled with the right bowling ball, his margin of error is highly increased versus other bowlers. The result is that sometimes the bowler throwing the more accurate shot loses to the bowler who has created a larger "target area". Some advanced bowlers simplified this to: "To a large degree, the equipment and oil pattern determines the winner."
At the end of 2007, the USBC completed a two-year study on bowling ball motion and how advanced, high-tech equipment may influence lane conditions and scoring. Establishing a Bowling Ball Specifications Task Force—comprising research engineers and volunteers from ball manufacturing companies—the USBC sought to better understand the motion of bowling balls using scientific research and data analysis. Test equipment included, but was not limited to, a robotic ball-thrower, a Computer Aided Tracking System ("Super C.A.T.S."), 59 reactive resin and particle bowling balls from various manufacturers, and eight lanes in a climate-controlled facility.
The driving force behind the study was summed up by USBC Technical Director Neil Stremmel: "USBC is concerned that technology has overtaken player skill [as the primary factor] in determining success in the sport of bowling."[37]
The USBC completed data analysis and released a lengthy report on its website (www.bowl.com) to the public in the spring of 2008. As of April 1, 2009, The USBC now regulates the chemical surface roughness of all bowling balls manufactured for certified ten-pin bowling. This specification is a direct result from the ball motion study, as the surface roughness of the coverstock of a bowling ball was the number one variable (out of 18) that affected the strength (how much a ball hooks) of a bowling ball. The radius of gyration specification has also been tightened and will go into effect in 2010. For up to date information on ball specifications, check the USBC Equipment Specifications website at http://bowl.com/equipandspecs/index.jsp.
Today there are an exceptional number of major sports-related and non sports-related companies that focus specifically on designing, producing and or supporting the production of many items specifically designed for ten-pin bowling equipment. Such items include scoring systems, balls, bags, cleaning products, wrist supports, shirts, shoes, trousers, shorts and gloves, etc. Some of the major world famous equipment producers and supporters include AMF, Brunswick, Dacos, Ebonite, and Storm.
Other manufacturers and suppliers include Lane#1, Track, Roto-Grip, Hammer, Circle Athletic, Columbia 300, Dyno-Thane, Fun Balls, Legends, MoRich, Robby, and Via Bowling. Specially designed shoe design and manufacture is also a significant enterprise that many companies have gotten involved in next to ball production. Some of the major shoe designers are Circle, Dexter, Etonic, and Linds.
Individual stores that sell the merchandise made by these companies specifically for ten-pin bowlers are called Pro Bowl stores or Pro Shops.
In the United States, bowling equipment sales totaled US$215 million in 1997 which is around the same figure as in 1996 when the Sporting Goods Manufacturers Association (SGMA) released their reports.[38] In Britain "Mintel International Group Ltd" produced a "Market Research Report" in July 2004 which gave the UK's Tenpin bowling sales and market by sector from 1999–2003 and also the type of customer.[39]
As with many sports, bowling has many terms and jargon that may not be well known to the casual player or TV viewer.
Ten-pin bowling is once again becoming a majorly contending athletic sport that is becoming more and more visible. It now far outweighs its 1960s through 1970s high-point and subsequent 1980-1990s downfall. The sport has become much more popular, with television regularly broadcasting its major tournaments and written publications such as magazines becoming increasingly popular around the globe.
The Indian Tenpin Bowling Association (ITBA) produces the magazine Go Tenpin. However, it is not specific to the United Kingdom and is highly respected around the globe in ten-pin bowling circles. (The final issue of the magazine was August 2009 it has been superseded by an on-line e-zine). The United States Bowling Congress (USBC) publishes a magazine for its entire membership called U.S. Bowler.
Other widely acclaimed ten-pin magazines and news services are the international and world-renowned Bowling Digital News, the international Bowlers Journal Online and the International Bowling Industry. Specific American magazines of note are the Bowling This Month magazine and the Bowling Digest.
Additionally, other than books written by bowling instructors on the coaching and training of the sport, books on the humorous and historical side of ten-pin bowling have become extremely popular. Some of these include A Funnier Approach, The Funniest Approach, Bowled Over, The New Bowling Trivia Book, Two For Stew and The Tour Would Be Great.
Ten-pin bowling has been referenced in many fictional works. One of the most notable recent examples is Harry Potter and the Philosopher's Stone by J.K. Rowling. Although it and its sequels establish that the magical characters featured know nothing about the non-magical (i.e. "real") world, Philosopher's Stone reveals that one major character, Professor Albus Dumbledore is a fan of ten-pin bowling.[41]
Since the electronic gaming industry began, ten-pin bowling has been seen in many formats on many big name gaming machines. Mattel's Intellivision game line introduced PBA Bowling, the first fully electronic bowling game, in 1980. JAMDAT Mobile (now known as EA Mobile), made the Jamdat Bowling series. Some of the many bowling games include PlayStation's "Bowling Xciting", "Black Market Bowling", "Strike Force Bowling", "Ten Pin Alley", "Brunswick Circuit Pro Bowling", "King of Bowling" and "Big Strike Bowling". Some of those on the PC are "Fast Lanes Bowling", "Flintstones: Bedrock Bowling", "Arcade Bowling", "Bowling Mania", "10 Pin Bowling Fever" and "GutterBall 3D" amongst many others on other gaming units.
More recently, Bowling appeared as one of the games featured in Wii Sports for Nintendo's Wii. To throw the ball, the player swings the Wii Remote in a motion similar to throwing a real bowling ball. Bowling returned in the sequel Wii Sports Resort, with the controls adapted for the Wii MotionPlus; the Resort incarnation also includes versions with obstacles and with a 100-pin setup. "High Velocity Bowling", released for PlayStation 3 in December 2007, likewise mimics the arm movement using the motion sensors of the "Six-Axis" controller.
Ten-pin bowling is also featured as one of the various minigames in Grand Theft Auto IV, Tekken: Dark Resurrection, Tekken Tag Tournament, and Yakuza 3 that the character can play.
Possibly ten-pin bowling's most noted appearance in film is in the Coen Brother's 1998 cult classic, The Big Lebowski, in which the game serves as a sort of limbo from the otherwise complicated plotline. During these breaks in the action, the characters usually debrief their escapades and engage in several sub-plots, such as their run-ins with The Jesus and the famed "Mark it zero" scene.
A well known movie that revolves all around ten-pin bowling is the Farrelly brothers' 1996 comedy Kingpin. A few professional bowlers appear in the film as extras.
ABC Sports's coverage of PBA events had been one of the network's second longest series of live sporting events, next only to their college football coverage. PBA events had also aired on NBC, CBS, and ESPN (where it is broadcast exclusively as of 2002). Amateur bowling competitions such as Bowling for Dollars and other programs built around near the same concept, where league and amateur bowlers competed for cash and prizes, were staples on local American television stations for many years up until the end of the 1980s.
However, while the prevalence of bowling media has greatly increased in recent years, many mainstream media outlets continue to lack adequate coverage of the sport. Reasons for this discrepancy may include bowling's blue collar demographic, its lack of corporate sponsorship, and the lack of any one bowling star to follow.[42]
It has also been suggested that the perpetuation of negative stereotypes about bowling pushes away the elite members of the journalism community. This includes the bowling atmosphere, which is frequently associated with beer drinking, as well as the personality and physical condition of the average bowler. These ideas may stem from the notion of bowling as only being a recreational activity. Professional bowlers have disputed this idea by offering demonstrations of the complex technique required to bowl successfully and compete at higher levels.[43] However, the debate over whether bowling should be considered a "sport" or a "game" continues.
A distribution table for scores in ten pin bowling may be found at http://www.balmoralsoftware.com/bowling/bowling.htm. It shows that there are just under 6×1012 possible ways to obtain a score, ranging from 1 way of getting zero (20 gutterballs in a row) to 1 way of getting 300 (12 strikes in a row).
The likelihood of any one particular spare leave can be modeled as multivariate binary random variables whose correlation is quite complicated. A model for the first ball's roll implies a discrete probability distribution on all 1024 possible outcomes, but specifying each of these individually is problematic, especially where the ball's diameter will not fit through any cross-lane spacing, between any two cross-lane adjacent pins (4-pin and 5-pin as an example).
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