Seattle Mariners
Although they have not thrown an MLB pitch in 2024, Nick Wittgren threw 6,208 pitches that were tracked by the PITCHf/x system between 2016 and 2023, including pitches thrown in the MLB Regular Season and Spring Training. In 2023, they relied primarily on their Slider (83mph) and Fourseam Fastball (92mph), also mixing in a Cutter (88mph) and Change (85mph). He also rarely threw a Sinker (91mph).
In 2023, compared to other RHP:
Their slider is basically never swung at and missed compared to other pitchers' sliders, sweeps across the zone, results in somewhat more flyballs compared to other pitchers' sliders and has some two-plane movement. Their fourseam fastball has some natural sinking action and has essentially average velo. Their cutter results in more flyballs compared to other pitchers' cutters and has some natural sink. Their change dives down out of the zone. Their sinker generates more whiffs/swing compared to other pitchers' sinkers, results in somewhat more flyballs compared to other pitchers' sinkers, has slight armside run and has some natural sinking action.