Seattle Mariners
Stefan Raeth has thrown 229 pitches that have been tracked by the PITCHf/x system between 2025 and 2026, including pitches thrown in Spring Training and Fall/Winter Ball. In 2026, they have relied primarily on their Slider (80mph) and Cutter (87mph), also mixing in a Fourseam Fastball (93mph), Change (88mph) and Sinker (91mph).
In 2026, compared to other RHP:
Their slider (take this with a grain of salt because they've only thrown 13 of them in 2026) comes in below hitting speed, is basically never swung at and missed compared to other pitchers' sliders, sweeps across the zone, results in many more groundballs 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 10 of them in 2026) has heavy sink, is an extreme flyball pitch compared to other pitchers' cutters and has strong cutting action. Their fourseam fastball (take this with a grain of salt because they've only thrown 8 of them in 2026) is basically never swung at and missed compared to other pitchers' fourseamers, results in more flyballs compared to other pitchers' fourseamers, has some natural sinking action, has essentially average velo and has slightly less natural movement than typical. Their change (take this with a grain of salt because they've only thrown 8 of them in 2026) is much firmer than usual, results in more flyballs compared to other pitchers' changeups and has some natural sink to it. Their sinker (take this with a grain of salt because they've only thrown 6 of them in 2026) generates an extremely high number of swings & misses compared to other pitchers' sinkers, is an extreme flyball pitch compared to other pitchers' sinkers and has less armside run than typical.