Comments on: Steven Jackson and Running Back Records http://www.footballperspective.com/steven-jackson-and-running-back-records/ NFL History and Stats Tue, 22 Jul 2014 17:56:20 +0000 hourly 1 https://wordpress.org/?v=6.9.4 By: James http://www.footballperspective.com/steven-jackson-and-running-back-records/#comment-143174 Tue, 22 Jul 2014 17:56:20 +0000 http://www.footballperspective.com/?p=20579#comment-143174 “The fact that 71% of the running backs with at least 7,000 yards from scrimmage had a career adjusted winning record says something, although it is probably too difficult to separate causation from correlation here.”

I think two reasons combine here to make that happen, one obvious, the other obvious to stat heads.

1. The group of RBs with at least 7,000 career rushing yards is heavily biased towards good backs, so years they play better and gain more rushing yards will be years their teams do well.

2. We know that winning teams run the ball at the end of games, so a team with a good record will give their good RB lots of carries at the end of all those games they won, giving the RBs an extra number of carries and yards in the good seasons and fewer in the worse seasons, driving up their adjusted win percentages.

]]> By: Chase Stuart http://www.footballperspective.com/steven-jackson-and-running-back-records/#comment-135651 Wed, 02 Jul 2014 22:11:25 +0000 http://www.footballperspective.com/?p=20579#comment-135651 In reply to patrick donovan.

I believe my method is a pretty good proxy of games played, and frankly, a better proxy than using actual games played. But I see your point.

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