Although they have not thrown an MLB pitch in 2022, John Lackey threw 29,787 pitches that were tracked by the PITCHf/x system between 2007 and 2017, including pitches thrown in the MLB Regular Season and the MLB Postseason. In 2017, they relied primarily on their Fourseam Fastball (91mph) and Slider (83mph), also mixing in a Sinker (91mph) and Curve (78mph). He also rarely threw a Change (84mph).
In 2017, compared to other RHP:
His fourseam fastball has some natural sinking action and has slightly below average velo. His slider has some two-plane movement. His sinker has some natural sinking action. His curve is a prototypical pitch with few remarkable qualities. His change generates fewer whiffs/swing compared to other pitchers' changeups and has some natural sink to it.