Kansas City Royals
Although he has not thrown an MLB pitch in 2020, Danny Duffy threw 18,724 pitches that were tracked by the PITCHf/x system between 2009 and 2019, including pitches thrown in the MLB Regular Season, the MLB Postseason, The World Baseball Classic, Spring Training and Fall/Winter Ball. In 2019, he relied primarily on his Fourseam Fastball (93mph) and Slider (84mph), also mixing in a Change (84mph), Curve (77mph) and Sinker (93mph).
Basic description of 2019 pitches compared to other LHP:
His fourseam fastball results in somewhat more flyballs compared to other pitchers' fourseamers, has slightly above average velo and has slightly less natural movement than typical. His slider is a prototypical pitch with few remarkable qualities. His change is slightly firmer than usual. His curve has an exceptional bite, is a real worm killer that generates an extreme number of groundballs compared to other pitchers' curves and has slight glove-side movement. His sinker has surprisingly little armside run, has little sinking action compared to a true sinker and has slightly above average velo.