Pittsburgh Pirates
Aroldis Chapman has thrown 13,375 pitches that have been tracked by the PITCHf/x system between 2010 and 2024, including pitches thrown in the MLB Regular Season, the MLB Postseason and Spring Training. In 2024, they have relied primarily on their Fourseam Fastball (97mph) and Slider (86mph), also mixing in a Sinker (99mph) and Splitter (89mph).
In 2024, compared to other LHP:
Their fourseam fastball is thrown at a speed that's borderline unfair, is an extreme flyball pitch compared to other pitchers' fourseamers and has much less armside movement than typical. Their slider is thrown extremely hard, sweeps across the zone, generates more whiffs/swing compared to other pitchers' sliders, has less than expected depth and results in somewhat more flyballs compared to other pitchers' sliders. Their sinker generates an extremely high number of swings & misses compared to other pitchers' sinkers, is thrown at a speed that's borderline unfair, has surprisingly little armside run and has little sinking action compared to a true sinker. Their splitter is thrown extremely hard, has surprising cut action, generates more whiffs/swing compared to other pitchers' splitters, has some natural sink to it and results in somewhat more flyballs compared to other pitchers' splitters.