Chase De Jong has thrown 1,249 pitches that have been tracked by the PITCHf/x system between 2017 and 2021, all of them occuring in the MLB Regular Season. In 2021, he has relied primarily on his Fourseam Fastball (93mph) and Curve (78mph), also mixing in a Slider (85mph). He also rarely throws a Change (86mph).
In 2021, compared to other RHP:
His fourseam fastball has much less armside movement than typical, results in more flyballs compared to other pitchers' fourseamers and has essentially average velo. His curve has an exceptional bite and generates fewer whiffs/swing compared to other pitchers' curves. His slider has some two-plane movement. His change (take this with a grain of salt because he's only thrown 14 of them in 2021) results in more flyballs compared to other pitchers' changeups and is slightly firmer than usual.