an investigation of DRA – impact of catchers

In my previous post I posted some code to make DRA-value and retro-CSAA databases, starting from retrosheet + baseball reference WAR (for fielding) + lahman (for ID matching) databases, and provided a link to some data for 1997-2004. I’ve run the models for some additional years, and done some analysis of the results. The first … More an investigation of DRA – impact of catchers

building CSAA and DRA-value databases using retrosheet

Several weeks ago, the crew at baseball prospectus put out a new pitching metric called DRA, or Deserved Run Average. It is distinctive in building in controls for lots of different factors, for including pitcher catcher framing, and for applying the technique of mixed-effect statistical modeling. The authors have put forth a tremendous amount of … More building CSAA and DRA-value databases using retrosheet