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Clay Davenport is a baseball sabermetrician who co-founded Baseball Prospectus (BP) in 1996. He co-edited several of the ''Baseball Prospectus'' annual volumes and is a writer for BaseballProspectus.com. Much of his work for BP was behind the scenes, where he maintained and implemented advanced statistics for the website. For most of the time during which he contributed to Baseball Prospectus, Davenport's main employment was as a meteorologist. In March 2010, it was announced that he had moved to full-time status at Baseball Propectus.〔Dave Pease, "Clay Davenport Now at BP Full Time," (BaseballProspectus.com, March 1, 2010 ).〕 In 2011, he departed Baseball Prospectus, but maintains his own website ''ClayDavenport.com'' on which he continues to publish baseball analysis and projections.〔(ClayDavenport.com )〕 As he commented there in May 2011: As my title indicates, this is a place for me to keep some statistics I happen to care about. These are statistics that I've run at Baseball Prospectus for many years, but BP has decided to discontinue them – or at least transform into something I no longer recognize. In a later post, he characterized the reason for his departure from BP: I'm Clay Davenport, one of the founders of Baseball Prospectus. I still have a (looser than before) affiliation with BP, so don't expect to see me using this site to dish dirt or run anybody into the ground. I'm old enough and stubborn enough to have my own way of doing things, and some of those things are contrary to the way BP wants to do things, which is why I wound up out here.〔Clay Davenport, "If You Don't Know Me ... ", (ClayDavenport.com, May 15, 2011 ). (February 20, 2012 )〕 Davenport is a native of Prestonsburg, Kentucky and now lives in Chicago, Illinois, ==Baseball analysis and sabermetrics== Davenport is known for creating the Pythagenport Formula,〔Clay Davenport and Keith Woolner, "Revisiting the Pythagorean Theorem: Putting Bill James' Pythagorean Theorem to the Test", (BaseballProspectus.com, June 30, 1999 ).〕 (designed to find the best exponent for the Pythagoras winning percentage equation), for inventing the statistic Equivalent Average (EqA) (now called "True Average" or "TAv"), and for the "Davenport Translations" or DT's. The DT's are estimated Major League equivalent performance statistics based on player statistics from minor league and international baseball. DT's were first published by Davenport on the rec.sports.baseball Usenet site in 1995, before Baseball Prospectus was founded.〔See, for example the 1994 figures at http://groups.google.com/group/rec.sport.baseball.analysis/tree/browse_frm/month/1995-02/.〕 The DT's are also used to standardize the records of players who played in different eras and playing conditions, not only in different leagues and levels of baseball. This allows comparison, for example, of the number of home runs hit by Babe Ruth and modern players, to estimate how many each would have hit in a season or a lifetime if they had all played under the same playing conditions (parks, leagues, levels of competition, and eras).〔Will Carroll and Clay Davenport, "The Answer: No Asterisks Necessary,"(BaseballProspectus.com, July 15, 2007 ).〕 Davenport introduced the DT's to the on-line baseball research community in 1995 as follows: Hello. My name is Clay Davenport, and I attend the University of Chicago as a physics genius. While these Translations look like player stats, they are NOT the players' actual statistics. The Translations are an attempt to show how well the player would have performed in a standard league (the American League of 1992), knowing how well he played in his actual league. We know that some leagues are tougher than others; that's why we have the majors, AAA, AA, and so on. We know that some leagues are easier to hit in; we know that some parks favor the pitchers; and we know that these effects are not constant from one year to the next. We can estimate how big a difference each of those makes and correct for them, and that is what the Translations try to do. How well they work I shall leave for you to judge.〔http://groups.google.com/group/rec.sport.baseball.analysis/tree/browse_frm/month/1995-01/. In this initial release as well as later, Davenport explained how the DT's were different from and more useful than the Major League Equivalencies (MLE's) that Bill James had first developed. See also Clay Davenport, "DTs vs. MLEs - A Validation Study," (BaseballProspectus.com, January 30, 1998 ).〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Clay Davenport」の詳細全文を読む スポンサード リンク
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