Colorado Rockies
Seth Halvorsen has thrown 831 pitches that have been tracked by the PITCHf/x system between 2024 and 2025, including pitches thrown in the MLB Regular Season and Spring Training. In 2025, they have relied primarily on their Fourseam Fastball (100mph), Change (91mph) and Slider (90mph).
In 2025, compared to other RHP:
Their fourseam fastball is a real worm killer that generates an extreme number of groundballs compared to other pitchers' fourseamers, is thrown at a speed that's borderline unfair, generates a high number of swings & misses compared to other pitchers' fourseamers, has some natural sinking action and has slight armside run. Their change is thrown extremely hard and has some natural sink to it. Their slider is thrown extremely hard, generates more whiffs/swing compared to other pitchers' sliders, results in many more groundballs compared to other pitchers' sliders and has primarily 12-6 movement.