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About Willihammer

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About Willihammer
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Recent Entries

What is Aaron Hicks' true K-rate?

by Willihammer on 04-26-2013 at 03:27 PM
Aaron Hicks has struck out 22 times in his first 17 big league games. His K-rate currently sits at 31.4%, tied for 10th worst in baseball with jay Bruce. a career 23.7% k-rate batter.

According to Charlie Adams at Beyond the Boxscore (courtesy of Pizza Cutter at StatSpeak.net) k-rates stabilize after about 150 PAs. But instead of waiting 20 more games for Hicks to reach that benchmark, I'm going to instead look at contact rate and guesstimate what Hicks' true k-rate might be based off

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Updated 04-26-2013 at 03:34 PM by Willihammer

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2012 Roy Oswalt: Relief fastball versus SP fastball

by Willihammer on 11-20-2012 at 01:19 PM
It was pretty obvious that Oswalt struggled as a starter down in Texas last year, earning him a couple different assignments to the bullpen. I went through his pitchf/x data for the season to differentiate Oswalt's effectiveness in the two roles and found some evidence that he could still be a valuable piece coming out of the pen in 2013. In a small sample, Oswalt's fastballs missed bats about twice as often when he was coming out of relief (15.93% versus 8.39%). I believe this is a good sign for

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Updated 11-20-2012 at 01:22 PM by Willihammer

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Ben Revere, Contact King, and the Red Light of OBP

by Willihammer on 09-18-2012 at 04:20 PM
Ben Revere doesn't swing and miss often. So he doesn't reach many 3 ball counts, and what follows below can be taken with heavy salt.

Still, if there is meaning in his small sample of 3-ball data, then Ben Revere's high contact percentage allows for absolutist decisionmaking at the plate in order to maximize on-base percentage.

Observe, Ben Revere is already a patient hitter:




But Revere puts balls

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Sam Deduno: King of Fielding Dependent Pitching?

by Willihammer on 08-30-2012 at 11:02 AM
Over the last three seasons, (min 450 IP), Jeremy Hellickson has accumulated 6.8 Fielding dependent wins. FDP wins are calculated based on a pitchers combined ability to limit hard contact on balls in play and strand runners ie. throw strikes from the stretch, limit the running game, etc.

Hellickson's 6.8 FDP wins leads all qualified pitchers, by far. Next closest is Jared Weaver, at 5.4 FDP wins.

Which brings me to Deduno, who in 10 starts has already accumulate 1.0 FDP-wins.

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