Boston Red Sox
Isaiah Campbell has thrown 1,186 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 Slider (81mph).
In 2025, compared to other RHP:
Their cutter has heavy sink, generates a high number of swings & misses compared to other pitchers' cutters, results in somewhat more flyballs compared to other pitchers' cutters, has slightly below average velo and has strong cutting action. Their fourseam fastball has less armside movement than typical and has essentially average velo. Their slider (take this with a grain of salt because they've only thrown 19 of them in 2025) is basically never swung at and missed compared to other pitchers' sliders, sweeps across the zone, has exceptional depth and has below average velo.