Beau Brieske has thrown 2,274 pitches that have been tracked by the PITCHf/x system between 2022 and 2023, including pitches thrown in the MLB Regular Season and Spring Training. In 2023, they have relied primarily on their Fourseam Fastball (97mph) and Change (88mph), also mixing in a Slider (87mph) and Sinker (96mph). He also rarely throws a Curve (82mph).
In 2023, compared to other RHP:
Their fourseam fastball has well above average velo, results in somewhat more flyballs compared to other pitchers' fourseamers and has slightly less natural movement than typical. Their change is much firmer than usual, has slight armside fade and has some natural sink to it. Their slider is a real worm killer that generates an extreme number of groundballs compared to other pitchers' sliders, is basically never swung at and missed compared to other pitchers' sliders and is much harder than usual. Their sinker generates an extremely high number of swings & misses compared to other pitchers' sinkers, is blazing fast and has little sinking action compared to a true sinker. Their curve (take this with a grain of salt because they've only thrown 10 of them in 2023) is basically never swung at and missed compared to other pitchers' curves, has primarily 12-6 movement, is much harder than usual and results in more flyballs compared to other pitchers' curves.