Chicago Cubs
Ryan Rolison has thrown 2,584 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 is straight as an arrow, generates more whiffs/swing compared to other pitchers' fourseamers, has some natural sinking action and has well above average velo. Their slider has short glove-side cut, is much harder than usual, results in somewhat more groundballs compared to other pitchers' sliders and has some two-plane movement. Their curve has an exceptional bite, generates fewer whiffs/swing compared to other pitchers' curves, is much harder than usual and has slight glove-side movement. Their sinker 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 and has well above average velo. Their change is thrown extremely hard, has surprising cut action, dives down out of the zone and is an extreme flyball pitch compared to other pitchers' changeups.