Justin Grimm has thrown 4,014 pitches that have been tracked by the PITCHf/x system between 2012 and 2015, including pitches thrown in the MLB Regular Season, the MLB Postseason and Spring Training. In 2015, he has relied primarily on his Fourseam Fastball (96mph) and Curve (84mph), also mixing in a Slider (85mph). He also rarely throws a Sinker
Basic description of 2015 pitches compared to other RHP:
His fourseam fastball has good "rising" action, has less armside movement than typical and has well above average velo. His curve is thrown extremely hard, generates an extremely high number of swings & misses compared to other pitchers' curves, is a real worm killer that generates an extreme number of groundballs compared to other pitchers' curves and has slight glove-side movement. His slider generates an extremely high number of swings & misses compared to other pitchers' sliders, has exceptional depth, results in more flyballs compared to other pitchers' sliders and has short glove-side cut. His sinker (take this with a grain of salt because he's only thrown 9 of them in 2015) is basically never swung at and missed compared to other pitchers' sinkers, is an extreme flyball pitch compared to other pitchers' sinkers, has less armside run than typical, has little sinking action compared to a true sinker and has slightly above average velo.