Colorado Rockies
Although they have not thrown an MLB pitch in 2025, Stephen Gonsalves threw 1,754 pitches that were tracked by the PITCHf/x system between 2018 and 2024, including pitches thrown in the MLB Regular Season and Spring Training. In 2024, they relied primarily on their Fourseam Fastball (94mph) and Slider (82mph), also mixing in a Curve (75mph).
In 2024, compared to other LHP:
Their fourseam fastball generates an extremely high number of swings & misses compared to other pitchers' fourseamers, has less armside movement than typical, has some natural sinking action, has well above average velo and results in somewhat more flyballs compared to other pitchers' fourseamers. Their slider has some two-plane movement. Their curve generates an extremely high number of swings & misses compared to other pitchers' curves, is an extreme flyball pitch compared to other pitchers' curves, has a sharp downward bite, has slight glove-side movement and has slightly below average velo.