Mike Montgomery has thrown 8,150 pitches that have been tracked by the PITCHf/x system between 2010 and 2019, including pitches thrown in the MLB Regular Season, the MLB Postseason, Spring Training and Fall/Winter Ball. In 2019, he has relied primarily on his Sinker (93mph), Curve (78mph) and Change (85mph), also mixing in a Fourseam Fastball (93mph). He also rarely throws a Cutter (89mph).
Basic description of 2019 pitches compared to other LHP:
His sinker is a real worm killer that generates an extreme number of groundballs compared to other pitchers' sinkers, has well above average velo and has less armside run than typical. His curve is slightly harder than usual and results in somewhat more flyballs compared to other pitchers' curves. His change is slightly firmer than usual and has some natural sink to it. His fourseam fastball generates fewer whiffs/swing compared to other pitchers' fourseamers, has some natural sinking action, has slightly above average velo and has slightly less natural movement than typical. His cutter (take this with a grain of salt because he's only thrown 19 of them in 2019) is an extreme flyball pitch compared to other pitchers' cutters, has well above average velo and has some natural sink.