Boston Red Sox
T.J. Sikkema has thrown 633 pitches that have been tracked by the PITCHf/x system between 2025 and 2026, all of them occuring in Spring Training. In 2026, they have relied primarily on their Change (82mph), Cutter (83mph) and Fourseam Fastball (89mph), also mixing in a Sinker (88mph) and Slider (77mph).
In 2026, compared to other LHP:
Their change is basically never swung at and missed compared to other pitchers' changeups, dives down out of the zone and is an extreme flyball pitch compared to other pitchers' changeups. Their cutter has heavy sink, has extreme cut action, has below average velo and results in somewhat more groundballs compared to other pitchers' cutters. Their fourseam fastball has some natural sinking action, has slightly below average velo and has slightly less natural movement than typical. Their sinker results in somewhat more groundballs compared to other pitchers' sinkers, has slightly below average velo and has some natural sinking action. Their slider comes in below hitting speed, sweeps across the zone, has exceptional depth, generates fewer whiffs/swing compared to other pitchers' sliders and results in more flyballs compared to other pitchers' sliders.