2008 WPA for 2009 Opening Day Starters

Just a quick graph that means absolutely nothing. I was wondering about last year’s performances for this year’s opening day starters. I decided to use Win Probability Added, from Fangraphs, to measure their performance over the 2008 season. It doesn’t really mean anything, because one’s performance the previous season isn’t necessarily the reason they’re named the opening day starter. Ken Macha in Milwaukee wanted to give it to Suppan so his best pitcher isn’t feeling quite the same pressure, he says. And Carlos Zambrano got it as a kind of lifetime achievement award even though Dempster had a better year last year.

Obviously, a player’s WPA over the course of last season doesn’t correlate with one start this season. Sabathia was at +4.74 last year, for example, but was -.284 today. And Cliff Lee, last year’s leader at +5.96, was -.261 today. Zambrano, meanwhile, was +.5 total last year, and put up 40% of that today, with a .196. So one game’s WPA doesn’t mean anything, but it’s still interesting to look at. I may try to superimpose everyone’s single-game results on this graph tomorrow. In the mean time, enjoy:

 

wpaopeningday

Advertisements

1 Comment

Filed under Uncategorized

One response to “2008 WPA for 2009 Opening Day Starters

  1. baturkey

    Graphs are always good, meaningful or not.

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s