Tampa Bay Rays
Grant Balfour has thrown 8,145 pitches that have been tracked by the PITCHf/x system between 2007 and 2014, including pitches thrown in the MLB Regular Season, the MLB Postseason and Spring Training. In 2014, he has relied primarily on his Fourseam Fastball (93mph) and Slider (85mph), also mixing in a Curve (83mph) and Change (87mph). He also rarely throws a Sinker (92mph).
Basic description of 2014 pitches compared to other RHP:
His fourseam fastball is straight as an arrow, explodes on the hitter and has essentially average velo. His slider has less than expected depth, has primarily 12-6 movement and results in somewhat more groundballs compared to other pitchers' sliders. His curve has very little depth, has primarily 12-6 movement, generates fewer whiffs/swing compared to other pitchers' curves and is much harder than usual. His change has surprising cut action, is an extreme flyball pitch compared to other pitchers' changeups, is much firmer than usual and has a lot of backspin. His sinker (take this with a grain of salt because he's only thrown 5 of them in 2014) 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 virtually no sinking action reminiscent of a true sinker.