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Ryan Dempster Examined

Ryan Dempster, typically undrafted in mixed leagues, had a massive season in 2008.  He was ninth in baseball with a 2.96 ERA, and added a 1.21 WHIP, 17 wins, and 187 strikeouts.  Dempster had been mostly a reliever since 2003.  Let's take a closer look at his season.

2.96 ERA
1.21 WHIP
17 wins
15.7 expected wins
206.6 innings
6.26 innings per start
8.14 K/9
3.31 BB/9
7.58 H/9
.283 BABIP vs. .295 team BABIP
0.61 HR/9
7.6% HR per flyball rate
48.1% groundball rate

Trying to take a stab at manually projecting Dempster for next year, let's go with these rates: 7.5 K/9, 3.5 BB/9, 8.3 H/9, 0.85 HR/9.  Basically I am just trying to be conservative, especially with his hit and home run rates. 

If I plug in those numbers I get something in the neighborhood of a 3.80 ERA and 1.30 WHIP.  Kind of in the range of Gil Meche this year. You'd like to see your mixed league team as a whole post an ERA around 3.70, a WHIP around 1.25.  So guys like Dempster or Meche are mostly helping you in wins and strikeouts, though ERA can vary wildly.


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