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April 16, 2003

Premium Article Testing the Nexus: Pitcher Age and Workload Effects

by Lee Sinins and Will Carroll

One of the glaring weaknesses in the injury analysis game is the lack of data. As the injury database is built and populated, we are left with spotty research and anecdotal knowledge, especially when it comes to the crossroads of sports medicine and pitcher workloads. Adding to the problem is the lack of data for both minor league and college pitching. Since pitching is pitching, opponents of workload limitations often bring this up. In one of the first systematic studies of early pitching workload, Lee Sinins, creator of the Sabermetric Baseball Encyclopedia, studied 135 pitchers who threw 175 innings or more before the age of 22.

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