Chicago Cubs
Ryan Rolison has thrown 2,108 pitches that have been tracked by the PITCHf/x system between 2020 and 2026, including pitches thrown in the MLB Regular Season and Spring Training. In 2026, they have relied primarily on their Fourseam Fastball (95mph) and Slider (86mph), also mixing in a Curve (80mph) and Sinker (94mph). He also rarely throws a Change (90mph).
In 2026, compared to other LHP:
Their fourseam fastball generates an extremely high number of swings & misses compared to other pitchers' fourseamers, is straight as an arrow, has some natural sinking action, has well above average velo and results in somewhat more groundballs compared to other pitchers' fourseamers. Their slider is thrown extremely hard, has short glove-side cut, results in somewhat more flyballs compared to other pitchers' sliders and has some two-plane movement. Their curve generates fewer whiffs/swing compared to other pitchers' curves, is much harder than usual, has a sharp downward bite, results in somewhat more flyballs compared to other pitchers' curves and has slight glove-side movement. Their sinker (take this with a grain of salt because they've only thrown 19 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, has surprisingly little armside run, has well above average velo and has some natural sinking action. Their change (take this with a grain of salt because they've only thrown 9 of them in 2026) is thrown extremely hard, is basically never swung at and missed compared to other pitchers' changeups, has surprising cut action, dives down out of the zone and is an extreme flyball pitch compared to other pitchers' changeups.