Jon Lester has thrown 37,265 pitches that have been tracked by the PITCHf/x system between 2007 and 2018, including pitches thrown in the MLB Regular Season, the MLB Postseason and Spring Training. In 2018, he has relied primarily on his Fourseam Fastball (92mph) and Cutter (88mph), also mixing in a Curve (76mph) and Change (86mph). He also rarely throws a Sinker (91mph).
Basic description of 2018 pitches compared to other LHP:
His fourseam fastball has essentially average velo, results in somewhat more flyballs compared to other pitchers' fourseamers and has slightly less natural movement than typical. His cutter has well above average velo, has good "rise", results in somewhat more flyballs compared to other pitchers' cutters and has strong cutting action. His curve generates more whiffs/swing compared to other pitchers' curves, results in somewhat more flyballs compared to other pitchers' curves and has slight glove-side movement. His change is much firmer than usual, results in many more groundballs compared to other pitchers' changeups and has some natural sink to it. His sinker is a real worm killer that generates an extreme number of groundballs compared to other pitchers' sinkers, has less armside run than typical and has some natural sinking action.