Pitcher Health
The Injury Epidemic
UCL surgeries are up 25% since 2019. Velocity keeps climbing. The sport is breaking its own arms, and the incentive structure rewards the pitches that cause it.
Data-driven visual essays that make the invisible physics of baseball visible. Spin rates, swing decisions, and probability shifts, designed to be felt, not just read.
150 years of baseball. 20,000+ careers. Pick your ballot from the data. WAR, peak value, postseason performance, and the arguments that never end.
The forces behind every pitch, every swing, every season. Free.
UCL surgeries are up 25% since 2019. Velocity keeps climbing. The sport is breaking its own arms, and the incentive structure rewards the pitches that cause it.
Slider usage surged from 15% in 2015 to 25% in 2025, making it baseball's most dominant pitch — and a leading driver of elbow injuries.
Average fastball usage dropped from 65% in 2008 to 49% in 2025. Hitters got too good at timing velocity, so pitching evolved away from its own signature weapon.
Data-driven analysis of baseball's biggest shifts. No fluff, no gatekeeping.
One essay a week. Free.