Non-MLB
Although they have not thrown an MLB pitch in 2024, Cam Vieaux threw 1,582 pitches that were tracked by the PITCHf/x system between 2022 and 2023, including pitches thrown in the MLB Regular Season and Spring Training. In 2023, they relied primarily on their Fourseam Fastball (92mph) and Slider (79mph), also mixing in a Change (86mph). He also rarely threw a Cutter (84mph).
In 2023, compared to other LHP:
Their fourseam fastball has heavy sinking action, is a real worm killer that generates an extreme number of groundballs compared to other pitchers' fourseamers, has essentially average velo and has slightly less natural movement than typical. Their slider sweeps across the zone, has below average velo, results in somewhat more flyballs compared to other pitchers' sliders and has some two-plane movement. Their change is a real worm killer that generates an extreme number of groundballs compared to other pitchers' changeups, has surprising cut action, dives down out of the zone and is much firmer than usual. Their cutter has extreme cut action, results in somewhat more flyballs compared to other pitchers' cutters, has slightly below average velo and has some natural sink.