Jon Lester has thrown 43,207 pitches that have been tracked by the PITCHf/x system between 2007 and 2020, including pitches thrown in the MLB Regular Season, the MLB Postseason and Spring Training. In 2020, he has relied primarily on his Cutter (88mph) and Fourseam Fastball (90mph), also mixing in a Curve (74mph), Change (84mph) and Sinker (89mph).
Basic description of 2020 pitches compared to other LHP:
His cutter has good "rise", results in somewhat more flyballs compared to other pitchers' cutters, has slightly above average velo and has strong cutting action. His fourseam fastball is basically never swung at and missed compared to other pitchers' fourseamers, has some natural sinking action, has slightly below average velo and has slightly less natural movement than typical. His curve has slight glove-side movement and has slightly below average velo. His change is an extreme flyball pitch compared to other pitchers' changeups, is slightly firmer than usual and has some natural sink to it. His sinker generates an extremely high number of swings & misses compared to other pitchers' sinkers, 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.