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In The Media

Correlation John Bollman on RPM, Revolution Per Minute as it Connects to Injury

by Larry Chiang on July 2, 2026



Paul Skenes’ four-seam fastball spin rate has declined sharply in 2026, falling from 2,318 RPM on April 1 to 1,987 RPM on July 1 according to @CodifyBaseball’s data.

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The post lists bi-weekly averages showing a consistent downward trend exceeding 300 RPM over three months for the Pirates ace.

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Read the at Replies 

widespread concern over possible arm fatigue or injury, with suggestions for rest, IL placement, or mechanical adjustments.​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​


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