Chicago Cubs
Riley Martin has thrown 2,903 pitches that have been tracked by the PITCHf/x system between 2023 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 Curve (85mph), also mixing in a Slider (89mph). He also rarely throws a Change (90mph).
In 2026, compared to other LHP:
Their fourseam fastball has much less armside movement than typical, has well above average velo and results in somewhat more flyballs compared to other pitchers' fourseamers. Their curve is thrown extremely hard, is a real worm killer that generates an extreme number of groundballs compared to other pitchers' curves, is basically never swung at and missed compared to other pitchers' curves, has a sharp downward bite and has primarily 12-6 movement. Their slider is thrown extremely hard. Their change (take this with a grain of salt because they've only thrown 5 of them in 2026) is thrown extremely hard, is basically never swung at and missed compared to other pitchers' changeups, is an extreme flyball pitch compared to other pitchers' changeups, has slight cut action and has some natural sink to it.