Friday, March 13, 2015

FIP v. ERA+

FIP

Statistic Description: Fielding Independent Pitching this stat measures a pitcher's effectiveness at preventing HR, BB, HBP and causing SO (13*HR + 3*(BB+HBP) - 2*SO)/IP + Constantlg The constant is set so that each season MLB average FIP is the same as the MLB avg ERA

Minimum of 1000 IP, 3000 PA, 500 games (fielding, 500 IP for Ps), 200 stolen base attempts (catchers) or 80 stolen base attempts (baserunners only since 1951) or 100 decisions for career and active leaderboards for rate statistics.

http://www.baseball-reference.com/leaders/fip_career.shtml

244. Greg Maddux 3.262

246. Whitey Ford 3.264


​I don't like this stat and Maddux and Ford may illustrate why.​

ERA+

Statistic Description: ERA+ 100*[lgERA/ERA] Adjusted to the player’s ballpark(s).

Minimum of 1000 IP, 3000 PA, 500 games (fielding, 500 IP for Ps), 200 stolen base attempts (catchers) or 80 stolen base attempts (baserunners only since 1951) or 100 decisions for career and active leaderboards for rate statistics.


26. Whitey Ford 133

29. Greg Maddux 132

1 comment:

Cliff Blau said...

They don't illustrate why. Is it because you want to pretend that pitcher's ERAs are solely due to their pitching rather than being dependent to a large extent on their teammates' fielding?