Although they have not thrown an MLB pitch in 2023, Cole Sulser threw 2,309 pitches that were tracked by the PITCHf/x system between 2019 and 2022, including pitches thrown in the MLB Regular Season and Spring Training. In 2022, they relied primarily on their Fourseam Fastball (92mph) and Change (83mph), also mixing in a Slider (84mph). He also rarely threw a Curve (78mph).
In 2022, compared to other RHP:
His fourseam fastball generates an extremely high number of swings & misses compared to other pitchers' fourseamers, has essentially average velo and results in somewhat more flyballs compared to other pitchers' fourseamers. His change generates more whiffs/swing compared to other pitchers' changeups, results in many more groundballs compared to other pitchers' changeups, has slight armside fade and has some natural sink to it. His slider generates more whiffs/swing compared to other pitchers' sliders, has short glove-side cut and has less than expected depth. His curve (take this with a grain of salt because he's only thrown 12 of them in 2022) is basically never swung at and missed compared to other pitchers' curves, has sweeping glove-side movement, results in more flyballs compared to other pitchers' curves and has little depth.