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Tuesday, May 27, 2008

Aging Curves for Fastball Speeds

By Tangotiger, 09:21 AM

Fascinating work by Josh Kalk.  Fastball speeds increases by about 0.4% per year until age 29, then decreases by about 0.8% after age 29.  You may also be interested in the work I did on pitching aging using the same delta process Josh is using, but focusing only on performance results.

Next up for Josh is: amount of movement on fastball speeds, where in the strike zone is the pitcher pitching (preferably by count), and how effective he is, all from an aging perspective.

Lots of delirious moments ahead for us…

(6) Comments • 2008/05/31 • Sabermetrics • Ball_Tracking • Forecasting
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May 21 05:05 Cory speaks!
May 21 04:48 Extra, extra, read all about it: MLB has inter-conference play this weekend!
May 21 04:21 Is the Shift actually working?
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May 21 01:01 Lincecum the catcher
May 20 21:02 Poll: I would have suspended Lawrie/Alomar for ___ part of the season
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May 20 14:22 Combining Rock-Paper-Scissors (RPS) with “What Number Am I Thinking Of”
May 20 11:51 When to buy Facebook?
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COMMENTS

May 21 05:05
Cory speaks!

May 21 04:48
Extra, extra, read all about it: MLB has inter-conference play this weekend!

May 21 04:21
Is the Shift actually working?

May 21 02:57
Are bullpen sessions predictive?

May 21 01:01
Lincecum the catcher

May 20 21:02
Poll: I would have suspended Lawrie/Alomar for ___ part of the season

May 20 20:59
How do you incentivize a power hitter to bunt?

May 20 14:22
Combining Rock-Paper-Scissors (RPS) with “What Number Am I Thinking Of”

May 20 11:51
When to buy Facebook?

May 19 23:47
Sponsoring MLB jerseys

THREADS

May 27, 2008
Aging Curves for Fastball Speeds

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