Non-MLB
Although they have not thrown an MLB pitch in 2026, Trevor Kelley threw 2,966 pitches that were tracked by the PITCHf/x system between 2019 and 2025, including pitches thrown in the MLB Regular Season, Spring Training and Fall/Winter Ball. In 2025, they relied primarily on their Fourseam Fastball (85mph) and Slider (72mph). He also rarely threw a Change (78mph).
In 2025, compared to other RHP:
Their fourseam fastball comes in below hitting speed, has heavy sinking action and has an obvious tail. Their slider comes in below hitting speed, sweeps across the zone, is an extreme flyball pitch compared to other pitchers' sliders and generates more whiffs/swing compared to other pitchers' sliders. Their change (take this with a grain of salt because they've only thrown 5 of them in 2025) 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.