Kansas City Royals
Danny Duffy has thrown 16,563 pitches that have been tracked by the PITCHf/x system between 2009 and 2018, including pitches thrown in the MLB Regular Season, the MLB Postseason, The World Baseball Classic, Spring Training and Fall/Winter Ball. In 2018, he has relied primarily on his Fourseam Fastball (94mph), also mixing in a Change (84mph), Slider (84mph), Sinker (94mph) and Curve (77mph).
Basic description of 2018 pitches compared to other LHP:
His fourseam fastball generates more whiffs/swing compared to other pitchers' fourseamers, has well above average velo, results in somewhat more flyballs compared to other pitchers' fourseamers, has slightly less natural movement than typical and has some added backspin. His change is slightly firmer than usual and results in somewhat more flyballs compared to other pitchers' changeups. His slider has some two-plane movement. His sinker has surprisingly little armside run, has well above average velo, has little sinking action compared to a true sinker and results in somewhat more flyballs compared to other pitchers' sinkers. His curve has an exceptional bite and results in many more groundballs compared to other pitchers' curves.