Tampa Bay Rays
Although they have not thrown an MLB pitch in 2024, Grant Balfour threw 8,331 pitches that were tracked by the PITCHf/x system between 2007 and 2015, including pitches thrown in the MLB Regular Season, the MLB Postseason and Spring Training. In 2015, they relied primarily on their Fourseam Fastball (91mph), Slider (86mph) and Sinker (90mph), also mixing in a Change (86mph). He also rarely threw a Curve (82mph).
In 2015, compared to other RHP:
Their fourseam fastball is straight as an arrow, has good "rising" action, results in more flyballs compared to other pitchers' fourseamers and has slightly below average velo. Their slider is an extreme flyball pitch compared to other pitchers' sliders, has less than expected depth and has primarily 12-6 movement. Their sinker (take this with a grain of salt because they've only thrown 18 of them in 2015) is basically never swung at and missed compared to other pitchers' sinkers, has surprisingly little armside run, results in more flyballs compared to other pitchers' sinkers, has slightly below average velo and has virtually no sinking action reminiscent of a true sinker. Their change (take this with a grain of salt because they've only thrown 6 of them in 2015) is basically never swung at and missed compared to other pitchers' changeups, has slight cut action, has an extreme amount of backspin, is slightly firmer than usual and results in somewhat more flyballs compared to other pitchers' changeups. Their curve (take this with a grain of salt because they've only thrown 3 of them in 2015) generates an extremely high number of swings & misses compared to other pitchers' curves, has primarily 12-6 movement, is much harder than usual and results in more flyballs compared to other pitchers' curves.