Wednesday, August 10, 2005

youth gone wild part 3 (walks)

The pitchers who have hit Craig Biggio with a pitch 270 have combined to surrender, in those same games, 462 walks or about 0.41 walks per inning pitched. During the span of Biggio's career, the total major league walk rate has been 0.38 per inning pitched, so the pitchers plunking Biggio haven't been walking people too much more often. There have been 81 Biggio plunking appearances where the pitcher hit more batters than he walked, and another 56 where the pitcher's walks and hit batters were equal. That leaves just 121 times, less than half, that a pitcher has walked more batters than he hit in a game where he hit Biggio. (There have been 12 multi-plunk pitching appearances, thus 258 overall pitching appearance with a hit Biggio.)
Younger pitchers have walked the most batters in games when they also hit Craig Biggio with a pitch, led by the 26 year olds with 55.
Walks in games when a pitcher hit Craig Biggio, by pitcher's age:
AgeWalks
2655
2544
2943
2443
2340
3139
2839
2232
3230
3027
2724
3314
2110
346
374
393
363
352
382
401
411
200


And, younger pitchers in general do tend to surrender more walks.

Walks per inning pitched by pitcher's age, all time:
AgeWalksInningsPitchersWalks per inning
2244217112615.33333333315080.392637
2367765176658.66666666721880.383592
212454464241.33333333339130.382059
20996526493.66666666674740.376125
25104984282210.66666666733240.372003
2489368240260.66666666728290.371961
19398310774.66666666671820.369663
26114016312569.66666666734580.364767
2711595832084534020.361413
28105877299400.66666666731130.353628
2993906270813.33333333327490.346755
3080878235942.33333333323540.342786
3168685201612.33333333320450.340677
1813644034790.338124
325669616928017120.334923
3346220139863.33333333314140.330465
447662343.33333333333290.326883
3436467111944.33333333311350.325758
4313004025560.32298
352749485737.66666666678980.320673
3620607644646880.319665
371462345976.66666666674980.318051
4222617138.33333333333830.31674
381041133378.33333333333840.311907
39703122606.66666666672490.311013
405346172521790.309876
413444113101310.304509

(ages with less than 20 pitchers excluded)

And it might just be getting worse.

Walks per inning pitched by pitcher's age, 1988-2004:
AgeWalksInningsPitchersWalks per inning
2116963549.33333333333780.477834
22604013696.66666666672280.440982
231174128073.33333333334250.418224
2418376455066520.403812
2522556559258880.403323
272623167122.66666666679610.390789
262557365548.66666666679520.390135
282411962709.33333333338400.384615
301932451760.66666666676310.373332
292192058910.33333333337550.37209
311714446510.66666666675570.368601
3312100335503910.360654
34993127897.66666666673190.355977
3214300403084820.354768
357402215022600.344247
365661167612070.337746
3918335487.33333333333650.334041
37410712471.33333333331460.329313
4012713868.66666666667440.328536
3829909217.66666666667990.324375
419933141340.31614

(ages with less than 20 pitchers excluded)

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