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THE BOOK--Playing The Percentages In Baseball

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Wednesday, May 19, 2010

Limiting workloads

By Tangotiger, 01:17 PM

I’m all in favor of limiting workloads for young pitchers, as Earl Weaver did.  I prefer Weaver’s approach, whereby he also works in some spot starts and long relief outings.  This is a good article on the Yanks and Mets approach.  I have no idea why they talk about IP and not batters faced or pitch counts.  An IP is 3 outs.  So, by saying they limit it to a 30IP increase in IP, they are saying they limit it to a 90 out increase.  Why 90 outs?  Why not 30 hits?  Or 3 HR?  Or 10 walks?  You want batters faced, not IP.  Preferably, you want pitch counts.  And even more preferably, a pitch count by pitch type, and assign a stress level to each pitch type, as well as what the plate count was as well as the base/out situation.

Really, just talk to your pitchers and say “Johan, how much more stress do you think you put on your arm with a runner on 1B, game is tied, Chase Utley batting, and you have a 3-1 count, and you are throwing a curveball?”

Model reality.  Talk to the pitchers.  That’s the job.

(Glove-slap: Brad.)

(6) Comments • 2010/05/21 • SabermetricsPitchers
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May 19, 2010
Limiting workloads