Minnesota Twins
Although they have not thrown an MLB pitch in 2024, Ryan O'Rourke threw 809 pitches that were tracked by the PITCHf/x system between 2015 and 2019, all of them occuring in the MLB Regular Season. In 2019, they relied primarily on their Slider (81mph) and Fourseam Fastball (92mph), also mixing in a Sinker (92mph) and Curve (79mph). He also rarely threw a Splitter (81mph).
In 2019, compared to other LHP:
Their slider (take this with a grain of salt because they've only thrown 9 of them in 2019) is basically never swung at and missed compared to other pitchers' sliders, has much less depth than expected and results in more flyballs compared to other pitchers' sliders. Their fourseam fastball (take this with a grain of salt because they've only thrown 7 of them in 2019) is basically never swung at and missed compared to other pitchers' fourseamers, is an extreme flyball pitch compared to other pitchers' fourseamers, has less armside movement than typical, has some natural sinking action and has essentially average velo. Their sinker (take this with a grain of salt because they've only thrown 2 of them in 2019) is basically never swung at and missed compared to other pitchers' sinkers, is an extreme flyball pitch compared to other pitchers' sinkers, has less armside run than typical and has slightly above average velo. Their curve (take this with a grain of salt because they've only thrown 2 of them in 2019) has very little depth, is basically never swung at and missed compared to other pitchers' curves, is an extreme flyball pitch compared to other pitchers' curves, is slightly harder than usual and has slight glove-side movement. Their splitter (take this with a grain of salt because they've only thrown 1 of them in 2019) comes in below hitting speed, is basically never swung at and missed compared to other pitchers' splitters, is an extreme flyball pitch compared to other pitchers' splitters and has movement that suggests a lot of backspin.