Arizona Diamondbacks
Merrill Kelly has thrown 14,013 pitches that have been tracked by the PITCHf/x system between 2019 and 2024, including pitches thrown in the MLB Regular Season, the MLB Postseason, The World Baseball Classic and Spring Training. In 2024, they have relied primarily on their Cutter (90mph), Fourseam Fastball (92mph) and Change (89mph), also mixing in a Sinker (92mph), Slider (86mph) and Curve (82mph).
In 2024, compared to other RHP:
Their cutter is basically never swung at and missed compared to other pitchers' cutters, results in more flyballs compared to other pitchers' cutters, has little cutting action and has slightly above average velo. Their fourseam fastball results in more flyballs compared to other pitchers' fourseamers, has some natural sinking action and has essentially average velo. Their change is thrown extremely hard, dives down out of the zone, results in many more groundballs compared to other pitchers' changeups and has slight armside fade. Their sinker results in more flyballs compared to other pitchers' sinkers, has slight armside run and has some natural sinking action. Their slider has primarily 12-6 movement, results in somewhat more groundballs compared to other pitchers' sliders and has some two-plane movement. Their curve is much harder than usual, has a sharp downward bite and results in somewhat more flyballs compared to other pitchers' curves.