Jon Lester has thrown 36,272 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 (91mph) and Cutter (88mph), also mixing in a Curve (75mph), Change (86mph) and Sinker (91mph).
Basic description of 2018 pitches compared to other LHP:
His fourseam fastball generates more whiffs/swing compared to other pitchers' fourseamers, 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 slightly above average velo and has strong cutting action. His curve generates an extremely high number of swings & misses compared to other pitchers' curves and has sweeping glove-side movement. His change dives down out of the zone, generates fewer whiffs/swing compared to other pitchers' changeups and is much firmer than usual. His sinker generates an extremely high number of swings & misses compared to other pitchers' sinkers, has less armside run than typical and has some natural sinking action.