Cross country obstacles
From Wikipedia, the free encyclopedia
Various obstacles are found in the Equestrian discipline of eventing. Horses must successfully negotiate these obstacles in order to win events. The size and type of obstacles vary depending on the competition and the level of the horse and rider. Fences used in the cross country phase of three-day events are generally made to look rustic and natural. They are built extremely solidly.
Contents |
[edit] Arrowhead
Also called chevrons, these fences are shaped like triangles, with the point facing towards the ground. They are generally very narrow, usually only a few feet wide. Arrowhead fences require the rider to keep their horse straight between their hands and legs, as it is easy for a run-out to occur due to the narrowness of the fence.[1] These fences are often used in combination with other obstacles to increase their difficulty, such as right after a bank or as the second obstacle in a bending line. This tests the rider's ability to regain control of her horse following an obstacle.
[edit] Bank
These jumps are steps up or down from one level to another, and can be single jumps or built as a "staircase" of multiple banks. Banks up require large amounts of impulsion, although not speed, from the horse. Banks down are to be approached slowly with little impulsion in order to be jumped correctly. The drop fence incorporates a down bank. Both types of banks require the rider to be centered over the horse. Down banks require the rider to lean futher back, with slipped reins and heels closer to the front of the horse, in order to absorb the shock of the landing.[1]
[edit] Brush Fence
These jumps consist of a solid base with brush placed on top, generally low enough for the horse to see over. The horse is supposed to jump through the brush in a flat jump, rather than over the top of it in a more rounded arc. Brush fences are also used for steeplechase racing. This type of fence is closely related to the bullfinch.[1]
[edit] Bullfinch
This fence has a solid base with several feet of brush protruding out of the top of the jump up to six feet high. The horse is supposed to jump through the brush, rather than over it. Due to the height of the brush, the horse generally cannot see the landing.[1] This tests the horse's trust in the rider, as the horse must depend on the rider to guide them carefully and steer them to a solid landing. The horse must be taught to jump calmly through the brush, as their attempting to jump over the brush could lead to a refusal, a runout at the next fence, or a misstep and possible injury. Bullfinches must be approached positively, with lots of impulsion, in order to prevent stops. When jumping a bullfinch, the rider must stay tight in the saddle so that brush cannot be caught between their leg and the horse.
[edit] Coffin
Also called the rails-ditch-rails, the coffin is a combination fence where the horse jumps a set of rails, moves one or several strides downhill to a ditch, then goes back uphill to another jump. In the past, coffins were more pronounced, with up and down banks leading to the ditch in the middle. However, today only the former type with the rails is seen.[1] The coffin is intended to be jumped in a slow, impulsive canter (known to eventers as a "coffin canter" for that reason). This canter gives the horse the power and agility to negotiate the obstacle, and also allows him the time needed to assess what question is being asked, so that he may better complete the combination without problem. Approaching in a fast, flat gallop will cause missed striding and may entice a refusal from the horse. Going too fast may also result in a fall, if the horse can not physically make the striding between the obstacles.
[edit] Combinations
See main article: Combination (jump)
These fences are combinations of banks, logs, water, ditches and other elements. All of the jumps are placed within a few strides of each other, and are meant to be jumped as a series in a specific order.[1]
[edit] Corner
Also called an apex, corner fences are in a triangular shape with the horse jumping over one corner of the triangle. They are similar to the "fan" jump seen in show-jumping. As the name suggests, the fence makes a "V" shape, that can have an angle up to 90 degrees. The corner is meant to be jumped on a line perpendicular to an imaginary bisecting line of the angle,[1] and as close to the narrow apex as possible while still far enough in on the jump that the horse knows he is supposed to go over it. If the rider aims too far toward the wider section of the obstacle, it may be too wide for the horse to clear it. This usually results in a stop or run out, although some of the braver horses are quite happy to "bank" the fence (touching down on it before quickly jumping off). This is not desirable, as the horse is more likely to slip, catch a leg, or fall. If the rider aims too far toward the apex, it is very easy for the horse to run right past, especially if is unsure as to whether he is to jump the obstacle. Due to their relative difficulty, the corner is not seen at the lowest levels. The corner is a precision fence, requiring accurate riding and good training, with the horse straight and between the rider's aids. Due to the build of the fence, an uncommitted horse and rider pair may have a run-out at this type of obstacle. It is best that the rider use their aids to "block" the horse from running out to the side, with a strong contact to prevent the shoulders from popping, and a supporting leg.
[edit] Ditch
These fences are dropped areas in the course that may be up to 11 feet, 10 inches wide in advanced competition, although they are seen at lesser widths at all levels of competition. They can be used individually, or in combinations such as the coffin and trakehner fences. Ditches should be ridden positively, with increased stride length and forward motion. The rider should always focus ahead, rather than looking down into the ditch, to keep their balance aligned correctly and allow the horse to give their best effort.[1]
[edit] Drop Fence
These fences ask the horse to jump over a log fence and land at a lower level than the one at which they took off. They are closely related to the bank fences.[1] Many riders have fallen badly on drop fences if the horse swerves unexpectedly. Jumping drop fences places a good deal of stress on the horse's legs, and therefore practice should be kept to a minimum. To help minimize the concussion on the horse's legs, the rider should encourage it to jump the fence as conservatively as possible, with little bascule or speed, using just enough power to safely clear the log before dropping down.
Drop fences require a great deal of trust of the horse in the rider, because often the animal can not see the landing until he is about to jump. It is important for the rider to keep his leg on to the base, and not "drop" the horse before the fence, as this may result in a refusal. In the air, the rider usually allows his shoulders to move slightly forward, and lifts his seatbones off the saddle until the peak of the jump. However, as the horse descends, the rider should allow his upper body to open, keeping his body relatively upright (especially if the drop is large). If the rider continues to lean forward on landing, it is much more likely that he will topple forward and become unseated when the horse touches the ground, due to the momemtum. This is especially true with drops because the landing is almost always slightly downhill, as this helps reduce concussion on the horse's legs. The rider must also be sure to slip his reins as the horse descends, allowing him the freedom to stretch his neck forward and down. Many riders, especially those who have only jumped in the ring, believe cross-country riders to be falling backward (or getting "left behind") when they jump a drop fence. However, it is important to note that more security is needed when jumping this type of fence than is typically required when jumping in a level arena. Additionally, the fences are solid, so the rider need not worry about dropping a rail (as would typically happen if he began sitting up too soon when riding fence in show jumping). The rider is not trying to encourage a great bascule from the horse. Although it may appear that the rider is getting left behind, a properly ridden drop fence will keep the rider centered over the horse, and still provide him enough freedom to comfortably negotiate the obstacle.
[edit] Log Fence
See main article: Log fence
These include oxers, log piles, vertical, and triple bar obstacles.[1]
[edit] Rolltop
These jumps have a rounded half-barrel appearance on top. They can be quite wide at upper levels, and often govern respect from the horse, but are not usually considered a "scary" fence for horses on course. They are generally covered with artificial turf to make them seem more natural. A modified version of the rolltop is sometimes seen in hunter and showjumping classes.[1]
[edit] Shark's Teeth
These fences have a top log rail, with an inverted triangle of logs pointing downwards, resembling a shark's top jaw.[2]
[edit] Stone Wall
These jumps are solid walls made out of stone or a similar material. They sometimes have logs placed on top to make them larger or change the appearance.[3]
[edit] Sunken Road
These are combination jumps involving banks and rails. At the lower levels, it may consist of a bank down, with a few strides to a bank up. At the upper levels, the sunken road often is quite complicated, usually beginning with a set of rails, with either one stride or a bounce distance before the bank down, a stride in the "bottom" of the road before jumping the bank up, and another stride or bounce distance before the final set of rails. Sunken roads are very technical, especially at the upper levels, and require accurate riding. A bad approach or extravagant jump in can possibly ruin the rider's distances, which may result in a stop from the horse, or a fall. Additionally, the quick change in the type of obstacle, from upright fence, to down bank, to upbank, makes it physically difficult for rider and horse. It thus requires that both horse and rider are balanced, and that the rider stays centered and follows the motion of her mount. [1]
[edit] Trakehner
These fences consist of a rail over a ditch. The ditch can be frightening for the horse, and so this type of jump is a test of bravery. Trakehners are first seen at training level (United States), and at the higher levels they can be quite large. Trakehners were originally fencelines that were built in drainage ditches. The Trakehnen area of East Prussia, originally wetlands, was drained by the Prussian kings in the 17th and 18th centuries, before a horse breeding program was begun. The Main Stud Trakehnen, which produced the Trakehner breed of horse, was established on the land in 1732. The large drainage ditches, with fencelines in the bottom of them, were later used as a test for the 3-year-olds for suitability for breeding and war mounts. Due to the build of the fence, the take-off spot for the horse was on the downside of the ditch, and the landing was on the upside. However, the old-style trakehner jump is not seen today, mainly because the landing was on an uphill grade, which was very punishing to the horses, even when the horse took-off well. The ditch is now revetted, and the fence does not have an uphill landing. In 1973, Rachael Bayliss and her horse, Gurgle the Greek, "cleared" a trakehner at the Badminton Horse Trials by going under it. The rules were changed after this incident, requiring the horse not only to go between the flags but also to pass over the log.[1] A Faux (False) Trakehner is a mobile cross-country jump designed to look like a trakehner by using heavy posts or poles on the ground to simulate the front and back edges of the ditch.
[edit] Water
See main article: Water (obstacle)
These fences range in difficulty from simple water crossings at lower levels to combinations of drop fences into water, water crossings, and bank jumps up out of the water at upper levels. The water may be no more than 14 inches deep.[1]
