Arizona Diamondbacks
John Curtiss has thrown 4,704 pitches that have been tracked by the PITCHf/x system between 2017 and 2025, including pitches thrown in the MLB Regular Season, the MLB Postseason and Spring Training. In 2025, they have relied primarily on their Fourseam Fastball (94mph), Cutter (90mph) and Slider (87mph). He also rarely throws a Change (88mph).
In 2025, compared to other RHP:
Their fourseam fastball has essentially average velo and results in somewhat more flyballs compared to other pitchers' fourseamers. Their cutter results in more flyballs compared to other pitchers' cutters, has slightly above average velo, has some natural sink and has strong cutting action. Their slider is basically never swung at and missed compared to other pitchers' sliders and is much harder than usual. Their change generates an extremely high number of swings & misses compared to other pitchers' changeups, is much firmer than usual, results in more flyballs compared to other pitchers' changeups and has some natural sink to it.