Los Angeles Angels
Although they have not thrown an MLB pitch in 2025, Robert Stephenson threw 6,384 pitches that were tracked by the PITCHf/x system between 2014 and 2024, including pitches thrown in the MLB Regular Season and Spring Training. In 2024, they relied primarily on their Fourseam Fastball (97mph) and Cutter (90mph).
In 2024, compared to other RHP:
Their fourseam fastball (take this with a grain of salt because they've only thrown 3 of them in 2024) is basically never swung at and missed compared to other pitchers' fourseamers, is an extreme flyball pitch compared to other pitchers' fourseamers, is blazing fast, has some natural sinking action and has slight armside run. Their cutter (take this with a grain of salt because they've only thrown 1 of them in 2024) has heavy sink, is basically never swung at and missed compared to other pitchers' cutters, is an extreme flyball pitch compared to other pitchers' cutters, has little cutting action and has slightly above average velo.