Although he has not thrown an MLB pitch in 2020, Sean Newcomb threw 6,031 pitches that were tracked by the PITCHf/x system between 2015 and 2019, including pitches thrown in the MLB Regular Season, the MLB Postseason and Spring Training. In 2019, he relied primarily on his Fourseam Fastball (94mph), also mixing in a Curve (79mph), Slider (81mph) and Change (87mph).
Basic description of 2019 pitches compared to other LHP:
His fourseam fastball generates more whiffs/swing compared to other pitchers' fourseamers, has less armside movement than typical, has well above average velo and results in somewhat more groundballs compared to other pitchers' fourseamers. His curve has an exceptional bite, is a real worm killer that generates an extreme number of groundballs compared to other pitchers' curves, generates more whiffs/swing compared to other pitchers' curves, is slightly harder than usual and has slight glove-side movement. His slider sweeps across the zone, has exceptional depth and generates fewer whiffs/swing compared to other pitchers' sliders. His change is thrown extremely hard and has some natural sink to it.