Oakland Athletics
Mason Barnett has thrown 2,964 pitches that have been tracked by the PITCHf/x system between 2022 and 2026, including pitches thrown in the MLB Regular Season and Spring Training. In 2026, they have relied primarily on their Fourseam Fastball (94mph), also mixing in a Slider (84mph), Change (86mph) and Curve (79mph). He also rarely throws a Cutter (90mph).
In 2026, compared to other RHP:
Their fourseam fastball is straight as an arrow, has some natural sinking action and has slightly above average velo. Their slider generates an extremely high number of swings & misses compared to other pitchers' sliders, sweeps across the zone and has exceptional depth. Their change has surprising cut action, results in more flyballs compared to other pitchers' changeups, is slightly firmer than usual and has some natural sink to it. Their curve has an exceptional bite, is basically never swung at and missed compared to other pitchers' curves, results in more flyballs compared to other pitchers' curves and has primarily 12-6 movement. Their cutter (take this with a grain of salt because they've only thrown 10 of them in 2026) has heavy sink, generates a high number of swings & misses compared to other pitchers' cutters, is an extreme flyball pitch compared to other pitchers' cutters, has slightly above average velo and has strong cutting action.