Boston Red Sox
Isaiah Campbell has thrown 1,352 pitches that have been tracked by the PITCHf/x system between 2023 and 2025, including pitches thrown in the MLB Regular Season and Spring Training. In 2025, they have relied primarily on their Cutter (86mph) and Fourseam Fastball (94mph), also mixing in a Curve (83mph) and Slider (82mph).
In 2025, compared to other RHP:
Their cutter has heavy sink, has extreme cut action, generates more whiffs/swing compared to other pitchers' cutters and has slightly below average velo. Their fourseam fastball has less armside movement than typical, results in somewhat more groundballs compared to other pitchers' fourseamers and has slightly above average velo. Their curve is much harder than usual, has a sharp downward bite and has primarily 12-6 movement. Their slider is basically never swung at and missed compared to other pitchers' sliders, sweeps across the zone, has exceptional depth, results in many more groundballs compared to other pitchers' sliders and has below average velo.