Miami Marlins
Although they have not thrown an MLB pitch in 2026, Michael Petersen threw 2,346 pitches that were tracked by the PITCHf/x system between 2023 and 2025, including pitches thrown in the MLB Regular Season, The World Baseball Classic and Spring Training. In 2025, they relied primarily on their Fourseam Fastball (98mph) and Slider (89mph). He also rarely threw a Sinker (98mph) and Change (89mph).
In 2025, compared to other RHP:
Their fourseam fastball generates an extremely high number of swings & misses compared to other pitchers' fourseamers, is blazing fast and results in somewhat more flyballs compared to other pitchers' fourseamers. Their slider is thrown extremely hard and has primarily 12-6 movement. Their sinker (take this with a grain of salt because they've only thrown 15 of them in 2025) generates an extremely high number of swings & misses compared to other pitchers' sinkers, is thrown at a speed that's borderline unfair, results in more flyballs compared to other pitchers' sinkers and has little sinking action compared to a true sinker. Their change (take this with a grain of salt because they've only thrown 13 of them in 2025) is thrown extremely hard, generates fewer whiffs/swing compared to other pitchers' changeups and results in more flyballs compared to other pitchers' changeups.