Arizona Diamondbacks
John Curtiss has thrown 3,810 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 Slider (89mph) and Fourseam Fastball (94mph). He also rarely throws a Change (90mph).
In 2025, compared to other RHP:
Their slider is thrown extremely hard, is basically never swung at and missed compared to other pitchers' sliders and has less than expected depth. Their fourseam fastball results in somewhat more flyballs compared to other pitchers' fourseamers and has slightly above average velo. Their change (take this with a grain of salt because they've only thrown 4 of them in 2025) is thrown extremely hard, is basically never swung at and missed compared to other pitchers' changeups, has surprising cut action and results in more flyballs compared to other pitchers' changeups.