Scott Feldman has thrown 19,320 pitches that have been 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, he has relied primarily on his Cutter (89mph), Sinker (91mph) and Curve (75mph). He also rarely throws a Change (85mph) and Slow Curve (67mph).
Basic description of 2015 pitches compared to other RHP:
His cutter generates fewer whiffs/swing compared to other pitchers' cutters, results in many more groundballs compared to other pitchers' cutters and has strong cutting action. His sinker has less armside run than typical. His curve has slight glove-side movement and has slightly below average velo. His change is a real worm killer that generates an extreme number of groundballs compared to other pitchers' changeups and generates fewer whiffs/swing compared to other pitchers' changeups. His slow curve (take this with a grain of salt because he's only thrown 1 of them in 2015) is a real yakker that's separated from his other curveball due to its big drop and slow speed.