Pittsburgh Pirates
Aroldis Chapman has thrown 14,013 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), Slider (87mph) and Sinker (99mph), also mixing in a Splitter (91mph).
In 2024, compared to other LHP:
Their fourseam fastball is thrown at a speed that's borderline unfair, generates a high number of swings & misses compared to other pitchers' fourseamers, has much less armside movement than typical and results in somewhat more flyballs compared to other pitchers' fourseamers. Their slider is thrown extremely hard, sweeps across the zone, 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, has little sinking action compared to a true sinker and results in somewhat more flyballs compared to other pitchers' sinkers. Their splitter is thrown extremely hard, generates an extremely high number of swings & misses compared to other pitchers' splitters, is a real worm killer that generates an extreme number of groundballs compared to other pitchers' splitters, has surprising cut action and has some natural sink to it.