from Amazon
Wednesday, May 12, 2010
Good starts, bad starts, WPA style
There were about 1700 wins and 1700 losses by starters last year. That corresponds to a [WPA + .01*IP*innLI] of .170 and higher for a good start and -.060 and worse for a bad start. This means that if you pitch 6 innings, your WPA was around +.110 and better in wins and -.120 and worse in losses. Simply put, you have a good start if you give your team a better than 60% chance of winning, and you have a bad start if you give your team less than a 40% chance of winning. Simple enough?
I’ll expand on Fangraphs in a day or two once I have access to their data, and we’ll see if it gives us any insight. Doing a quick calculation, it looks like Greinke was 23-4, and Felix was 22-7, and Chris Carpenter was 18-2. Bringing up the rear was Luke Hochevar at 5-17.
I also need a good name, something that can be used conversationally.
Recent comments
Older comments
Page 1 of 344 pages 1 2 3 > Last »Complete Archive – By Category
Complete Archive – By Date