Arizona Diamondbacks
Although they have not thrown an MLB pitch in 2026, Isaiah Campbell threw 2,155 pitches that were tracked by the PITCHf/x system between 2023 and 2025, including pitches thrown in the MLB Regular Season and Spring Training. In 2025, they relied primarily on their Cutter (88mph) and Fourseam Fastball (95mph), also mixing in a Sinker (94mph), Slider (84mph) and Curve (83mph).
In 2025, compared to other RHP:
Their cutter has heavy sink and has strong cutting action. Their fourseam fastball generates more whiffs/swing compared to other pitchers' fourseamers, has less armside movement than typical, results in many more groundballs compared to other pitchers' fourseamers, has some natural sinking action and has slightly above average velo. Their sinker results in many more groundballs compared to other pitchers' sinkers, has slightly above average velo and has some natural sinking action. Their slider sweeps across the zone and has exceptional depth. Their curve is a real worm killer that generates an extreme number of groundballs compared to other pitchers' curves, generates more whiffs/swing compared to other pitchers' curves, is much harder than usual, has a sharp downward bite and has primarily 12-6 movement.