Talk:Pythagorean expectation

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[edit] Clutch

I am curious if anyone has done any serious analysis as to what one can determine about "clutch" performance based on this concept of Pythagorean expectation. There ought to be a theoretical "correct" result if you assume there is no such thing as "clutch" performance. Observing how the actual results differ from the expectation might point us towards certain 'clutch' behavior to look at, if they exist. -- 24.160.126.217 04:34, 18 May 2005 (UTC)

But there are also other factors that lead to differences between pythag projections and actual team performance, such as bullpen depth, manager decisions, and just plain luck. Javaisfun 04:02, 18 January 2007 (UTC)

[edit] Question about Runs Allowed

Hi, I have entirely no expierience with professional baseball, and the term 'runs allowed' makes little sense to me, could someone who would knows what this means clarify this on the page, or create a link to an appropriate page. Thanks. --Neo 21:27, 4 July 2006 (UTC)

It's the number of runs scored by the other team. I think there's also a technical definition that might differ from this in some instances, used in statistics applied only to pitchers rather than to teams as a whole. Michael Hardy 02:11, 5 July 2006 (UTC)

[edit] Greatest differentials?

  • Does anyone know what the biggest differential ever is between Pythag expectation and actual record? The Indians were -12 (Pythag = 90 wins, actual = 78 ) last year, which is impressive, but my guess is that there are far more ridiculous numbers. Wickethewok 02:41, 10 February 2007 (UTC)
Using the Lahman Databse (highly recommended), I calculated the pyth% for every team since 1950. Here are the teams who differed most from their expected wins... (Note: I used the "Pythagenpat" exponent, not 2 or 1.83.)
year    Team                    lg      G       W       L       RS      RA      Pyth%   PythW   Diff
------------------------------------------------------------------------------------------------------
1993    New York Mets           NL      162     59      103     672     744     0.453   73.4    14.38
1986    Pittsburgh Pirates      NL      162     64      98      663     700     0.475   77.0    12.97
1975    Houston Astros          NL      162     64      97      664     711     0.469   75.9    11.91
1984    Pittsburgh Pirates      NL      162     75      87      615     567     0.536   86.8    11.79
2005    Arizona Diamondbacks    NL      162     77      85      696     856     0.403   65.2    11.75
2004    New York Yankees        AL      162     101     61      897     808     0.551   89.2    11.75
1984    New York Mets           NL      162     90      72      652     676     0.484   78.3    11.67
1967    Baltimore Orioles       AL      161     76      85      654     592     0.544   87.7    11.66
2006    Cleveland Indians       AL      162     78      84      870     782     0.551   89.3    11.34
1954    Brooklyn Dodgers        NL      154     92      62      778     740     0.524   80.7    11.30
1970    Cincinnati Reds         NL      162     102     60      775     681     0.560   90.7    11.26
1972    New York Mets           NL      156     83      73      528     578     0.461   71.8    11.15
1955    Kansas City Athletics   AL      155     63      91      638     911     0.335   51.9    11.10
1999    Kansas City Royals      AL      161     64      97      856     921     0.464   74.7    10.67
1993    San Diego Padres        NL      162     61      101     679     772     0.440   71.3    10.34
1961    Cincinnati Reds         NL      154     93      61      710     653     0.539   83.0    10.01
1970    Chicago Cubs            NL      162     84      78      806     679     0.580   93.9    9.95
1980    St. Louis Cardinals     NL      162     74      88      738     710     0.518   83.9    9.92
1972    San Francisco Giants    NL      155     69      86      662     649     0.509   78.9    9.91
1997    San Francisco Giants    NL      162     90      72      784     793     0.495   80.1    9.88
1966    New York Yankees        AL      160     70      89      611     612     0.499   79.9    9.88
1955    Detroit Tigers          AL      154     79      75      775     658     0.577   88.8    9.80
2004    Cincinnati Reds         NL      162     76      86      750     907     0.409   66.2    9.77
1955    Cincinnati Redlegs      NL      154     75      79      761     684     0.550   84.7    9.75
1953    New York Giants         NL      155     70      84      768     747     0.513   79.6    9.56
2001    Colorado Rockies        NL      162     73      89      923     906     0.509   82.5    9.50
1977    Baltimore Orioles       AL      161     97      64      719     653     0.544   87.6    9.38
1981    Cincinnati Reds         NL      108     66      42      464     440     0.524   56.6    9.37
1974    San Diego Padres        NL      162     60      102     541     830     0.313   50.7    9.31
1997    Houston Astros          NL      162     84      78      777     660     0.575   93.2    9.22
1962    New York Mets           NL      161     40      120     617     948     0.306   49.2    9.19
1978    Cincinnati Reds         NL      161     92      69      710     688     0.515   82.8    9.15
1998    Kansas City Royals      AL      161     72      89      714     899     0.391   62.9    9.10
1972    Baltimore Orioles       AL      154     80      74      519     430     0.578   89.1    9.06
1962    St. Louis Cardinals     NL      163     84      78      774     664     0.571   93.0    9.04

Cleveland 2006 was the 9th-biggest differential since 1950. They had the most expected wins of any team in the top 10, however. - Goo Paine 04:23, 10 February 2007 (UTC)