Arizona Diamondbacks
Justin Martinez has thrown 2,961 pitches that have been tracked by the PITCHf/x system between 2022 and 2025, including pitches thrown in the MLB Regular Season, Spring Training and Fall/Winter Ball. In 2025, they have relied primarily on their Sinker (100mph), Splitter (89mph) and Fourseam Fastball (101mph), also mixing in a Slider (92mph).
In 2025, compared to other RHP:
Their sinker is a real worm killer that generates an extreme number of groundballs compared to other pitchers' sinkers, is thrown at a speed that's borderline unfair, has slight armside run and has some natural sinking action. Their splitter is thrown extremely hard, generates an extremely high number of swings & misses compared to other pitchers' splitters and has some natural sink to it. Their fourseam fastball generates an extremely high number of swings & misses compared to other pitchers' fourseamers, has heavy sinking action, 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 and has slight armside run. Their slider is thrown extremely hard, generates an extremely high number of swings & misses compared to other pitchers' sliders, has less than expected depth and has primarily 12-6 movement.