Miami Marlins
Seth Martinez has thrown 3,521 pitches that have been tracked by the PITCHf/x system between 2021 and 2025, including pitches thrown in the MLB Regular Season and Spring Training. In 2025, they have relied primarily on their Slider (77mph) and Fourseam Fastball (90mph), also mixing in a Change (84mph), Sinker (89mph) and Cutter (85mph).
In 2025, compared to other RHP:
Their slider comes in below hitting speed, sweeps across the zone, is an extreme flyball pitch compared to other pitchers' sliders and has less than expected depth. Their fourseam fastball generates an extremely high number of swings & misses compared to other pitchers' fourseamers, has heavy sinking action, results in somewhat more groundballs compared to other pitchers' fourseamers, has slight armside run and has slightly below average velo. Their change dives down out of the zone and generates fewer whiffs/swing compared to other pitchers' changeups. Their sinker generates an extremely high number of swings & misses compared to other pitchers' sinkers, has heavy sinking action and has below average velo. Their cutter generates a high number of swings & misses compared to other pitchers' cutters, has below average velo, results in more flyballs compared to other pitchers' cutters and has some natural sink.