Janson Junk

Miami Marlins

Pitch Repertoire At-A-Glance

Janson Junk has thrown 6,508 pitches that have been tracked by the PITCHf/x system between 2021 and 2025, including pitches thrown in the MLB Regular Season and Spring Training. In 2025, they have relied primarily on their Slider (85mph) and Fourseam Fastball (94mph), also mixing in a Curve (83mph) and Change (89mph). He also rarely throws a Sinker (93mph).


In 2025, compared to other RHP:
Their slider has short glove-side cut. Their fourseam fastball generates more whiffs/swing compared to other pitchers' fourseamers, has less armside movement than typical and has slightly above average velo. Their curve is basically never swung at and missed compared to other pitchers' curves, is much harder than usual, results in many more groundballs compared to other pitchers' curves, has a sharp downward bite and has primarily 12-6 movement. Their change is thrown extremely hard, is basically never swung at and missed compared to other pitchers' changeups, results in many more groundballs compared to other pitchers' changeups, has slight armside fade and has some natural sink to it. Their sinker (take this with a grain of salt because they've only thrown 1 of them in 2025) is basically never swung at and missed compared to other pitchers' sinkers, is an extreme flyball pitch compared to other pitchers' sinkers, has surprisingly little armside run and has little sinking action compared to a true sinker.