St. Louis Cardinals
Steven Matz has thrown 17,400 pitches that have been tracked by the PITCHf/x system between 2015 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 (93mph) and Change (83mph), also mixing in a Curve (80mph) and Slider (89mph).
In 2025, compared to other LHP:
Their sinker is basically never swung at and missed compared to other pitchers' sinkers, has well above average velo and has less armside run than typical. Their change dives down out of the zone, generates more whiffs/swing compared to other pitchers' changeups and results in more flyballs compared to other pitchers' changeups. Their curve generates more whiffs/swing compared to other pitchers' curves, is much harder than usual and has slight glove-side movement. Their slider (take this with a grain of salt because they've only thrown 16 of them in 2025) is thrown extremely hard, generates fewer whiffs/swing compared to other pitchers' sliders, results in more flyballs compared to other pitchers' sliders, has less than expected depth and has primarily 12-6 movement.