Although he has not thrown an MLB pitch in 2021, Daniel Norris threw 7,805 pitches that were tracked by the PITCHf/x system between 2014 and 2020, all of them occuring in the MLB Regular Season. In 2020, he relied primarily on his Fourseam Fastball (93mph), Change (88mph) and Slider (86mph). He also rarely threw a Curve (76mph).
Basic description of 2020 pitches compared to other LHP:
His fourseam fastball has much less armside movement than typical, has some natural sinking action, results in somewhat more groundballs compared to other pitchers' fourseamers and has slightly above average velo. His change is thrown extremely hard, is a real worm killer that generates an extreme number of groundballs compared to other pitchers' changeups and dives down out of the zone. His slider is a real worm killer that generates an extreme number of groundballs compared to other pitchers' sliders, is much harder than usual and has some two-plane movement. His curve (take this with a grain of salt because he's only thrown 1 of them in 2020) is basically never swung at and missed compared to other pitchers' curves, is an extreme flyball pitch compared to other pitchers' curves and has a sharp downward bite.