Arizona Diamondbacks
John Curtiss has thrown 4,846 pitches that have been tracked by the PITCHf/x system between 2017 and 2026, including pitches thrown in the MLB Regular Season, the MLB Postseason, The World Baseball Classic and Spring Training. In 2026, they have relied primarily on their Fourseam Fastball (92mph) and Slider (86mph), also mixing in a Cutter (89mph) and Change (86mph).
In 2026, compared to other RHP:
Their fourseam fastball generates more whiffs/swing compared to other pitchers' fourseamers, has essentially average velo and results in somewhat more flyballs compared to other pitchers' fourseamers. Their slider is basically never swung at and missed compared to other pitchers' sliders and results in more flyballs compared to other pitchers' sliders. Their cutter is an extreme flyball pitch compared to other pitchers' cutters and has some natural sink. Their change (take this with a grain of salt because they've only thrown 14 of them in 2026) is basically never swung at and missed compared to other pitchers' changeups, results in more flyballs compared to other pitchers' changeups and is slightly firmer than usual.