Kenley Jansen

Boston Red Sox

Pitch Repertoire At-A-Glance

Kenley Jansen has thrown 14,442 pitches that have been tracked by the PITCHf/x system between 2010 and 2024, including pitches thrown in the MLB Regular Season, the MLB Postseason and Spring Training. In 2024, they have relied primarily on their Cutter (92mph), also mixing in a Slider (83mph). He also rarely throws a Sinker (94mph).


In 2024, compared to other RHP:
Their cutter explodes on the hitter, generates an extremely high number of swings & misses compared to other pitchers' cutters, is blazing fast, has extreme cut action and results in somewhat more flyballs compared to other pitchers' cutters. Their slider (take this with a grain of salt because they've only thrown 12 of them in 2024) has exceptional depth and is an extreme flyball pitch compared to other pitchers' sliders. Their sinker (take this with a grain of salt because they've only thrown 7 of them in 2024) generates an extremely high number of swings & misses compared to other pitchers' sinkers, is an extreme flyball pitch compared to other pitchers' sinkers, has surprisingly little armside run, has well above average velo and has virtually no sinking action reminiscent of a true sinker.