Boston Red Sox
Zack Kelly has thrown 1,679 pitches that have been tracked by the PITCHf/x system between 2022 and 2024, including pitches thrown in the MLB Regular Season and Spring Training. In 2024, they have relied primarily on their Fourseam Fastball (97mph), Slider (82mph), Cutter (91mph) and Change (84mph).
In 2024, compared to other RHP:
Their fourseam fastball is a real worm killer that generates an extreme number of groundballs compared to other pitchers' fourseamers, generates a high number of swings & misses compared to other pitchers' fourseamers, has some natural sinking action and has well above average velo. Their slider sweeps across the zone and has some two-plane movement. Their cutter has well above average velo and has some natural sink. Their change has an obvious armside fade, dives down out of the zone and results in somewhat more flyballs compared to other pitchers' changeups.