Tampa Bay Rays
Trevor Kelley has thrown 769 pitches that have been tracked by the PITCHf/x system between 2019 and 2023, including pitches thrown in the MLB Regular Season and Spring Training. In 2023, they have relied primarily on their Sinker (91mph) and Slider (78mph). He also rarely throws a Fourseam Fastball (91mph) and Change (79mph).
In 2023, compared to other RHP:
Their sinker has heavy sinking action, has an obvious tail, is an extreme flyball pitch compared to other pitchers' sinkers and has slightly below average velo. Their slider comes in below hitting speed, is basically never swung at and missed compared to other pitchers' sliders, sweeps across the zone, is an extreme flyball pitch compared to other pitchers' sliders and has less than expected depth. Their fourseam fastball (take this with a grain of salt because they've only thrown 3 of them in 2023) generates an extremely high number of swings & misses compared to other pitchers' fourseamers, has heavy sinking action, has an obvious tail, is an extreme flyball pitch compared to other pitchers' fourseamers and has slightly below average velo. Their change (take this with a grain of salt because they've only thrown 2 of them in 2023) comes in below hitting speed, generates an extremely high number of swings & misses compared to other pitchers' changeups, has an obvious armside fade, dives down out of the zone and results in more flyballs compared to other pitchers' changeups.