Obviously, the weights of pFIP would change for ERA, as well, but I plan on testing the same sample against ERA. FIP is really an attempt to tell us how a pitcher actually performed within a season, while ignoring other factors, namely defense. Admins may or may not choose to remove the comment or block the author.
This is why FIP serves as a measure of expected regression, positive or negative, when compared to ERA. Current Depth Charts
The combination of his comments about those equations and the results from the two tests above led me down an interesting path, which I’d like to share. He made this assertion because with descriptive FIP, home runs are weighted 4.3 times walks, but these results had home runs weighted almost eight times walks. Fingers crossed she continues to improve. Admins may or may not choose to remove the comment or block the author. And please don't worry, your report will be anonymous.You can flag a comment by clicking its flag icon. Rookie Leaders
We present them here for purely educational purposes.
For example, a pitcher with an ERA of 2.50 and a FIP of 4.50 has probably benefited from terrific defense, given up a majority of his hits when there have not been runners on base, and has been the beneficiary of a couple of very close misses (i.e. Relievers are one of the most if not the most volatile position in baseball. First, here are the linear regression equations for each predictor for last week’s sample:Those equations are listed in order of predictive ability (from most predictive to least). Play-by-play data prior to 2002 was obtained free of charge from and is copyrighted
And please don't worry, your report will be anonymous.You can flag a comment by clicking its flag icon. As predictive FiP currently stands, home runs are weighted only 3.5 times greater than strikeouts and ~4.3 times walks.
I was also asked to change the 2008-2012 sample from the 120 IP minimum in Year x to include Year x-1, and set that minimum to 250 innings. Many thanks to him. For example, a pitcher who qualified would need at least 250 innings over the course of 2007-08 and at least 100 innings in 2009. The weights that are used in the FIP formula ((13*HR + 3*BB – 2*K)/IP + constant) come from a within-season regression. An FIP- of 100 is league-average.
And please don't worry, your report will be anonymous.You can flag a comment by clicking its flag icon. Close • Posted by. Clayton Kershaw /2.752, 3. All major league baseball data including pitch type, velocity, batted ball location,
Great Job! Here are the results:Here is my explanation for how one should interpret the r-squared and root-mean square error of the residual from last week:SIERA came out on top of that study, just ahead of kwERA (a modified form of K-BB); the same as we see here.
Minor League Leaders
Admins may or may not choose to remove the comment or block the author. 3 Year Projections
All UZR (ultimate zone rating) calculations are provided courtesy of Mitchel Lichtman.All Win Expectancy, Leverage Index, Run Expectancy, and Fans Scouting Report data licenced from TangoTiger.com
You might want to fiddle with the amount of regression or incorporate an additional past season of data early in the year, but this seems like theVery interesting. And please don't worry, your report will be anonymous.You can flag a comment by clicking its flag icon.
Website admin will know that you reported it. More
And by finding, what I really mean is a reminder:The weights that are used in the FIP formula ((13*HR + 3*BB – 2*K)/IP + constant) come from a within-season regression.
I too have lost a cat to FIP and I agree with the others that your cat would have been a lot sicker.