Seattle Mariners
Josh Fleming has thrown 5,717 pitches that have been tracked by the PITCHf/x system between 2020 and 2025, including pitches thrown in the MLB Regular Season, the MLB Postseason and Spring Training. In 2025, they have relied primarily on their Sinker (88mph) and Slider (76mph), also mixing in a Cutter (86mph) and Change (81mph).
In 2025, compared to other LHP:
Their sinker generates an extremely high number of swings & misses compared to other pitchers' sinkers, has heavy sinking action and has slightly below average velo. Their slider (take this with a grain of salt because they've only thrown 15 of them in 2025) comes in below hitting speed, sweeps across the zone, generates fewer whiffs/swing compared to other pitchers' sliders, results in more flyballs compared to other pitchers' sliders and has some two-plane movement. Their cutter (take this with a grain of salt because they've only thrown 12 of them in 2025) generates fewer whiffs/swing compared to other pitchers' cutters, has little cutting action, results in somewhat more flyballs compared to other pitchers' cutters and has some natural sink. Their change (take this with a grain of salt because they've only thrown 10 of them in 2025) is basically never swung at and missed compared to other pitchers' changeups, dives down out of the zone, is an extreme flyball pitch compared to other pitchers' changeups and has slight cut action.