Seattle Mariners
Although they have not thrown an MLB pitch in 2025, Luke Barker threw 194 pitches that were tracked by the PITCHf/x system between 2022 and 2024, all of them occuring in the MLB Regular Season. In 2024, they relied primarily on their Fourseam Fastball (91mph) and Splitter (83mph), also mixing in a Slider (83mph).
In 2024, compared to other RHP:
Their fourseam fastball results in somewhat more groundballs compared to other pitchers' fourseamers, has slightly below average velo and has slightly less natural movement than typical. Their splitter has surprising cut action, has some natural sink to it, results in somewhat more flyballs compared to other pitchers' splitters and has slightly below average velo. Their slider (take this with a grain of salt because they've only thrown 15 of them in 2024) is basically never swung at and missed compared to other pitchers' sliders, is an extreme flyball pitch compared to other pitchers' sliders and has primarily 12-6 movement.