Gio Gonzalez has thrown 31,977 pitches that have been tracked by the PITCHf/x system between 2008 and 2019, including pitches thrown in the MLB Regular Season, the MLB Postseason, The World Baseball Classic and Spring Training. In 2019, he has relied primarily on his Change (82mph), Sinker (90mph) and Fourseam Fastball (90mph), also mixing in a Curve (75mph).
Basic description of 2019 pitches compared to other LHP:
His change generates a very high amount of groundballs compared to other pitchers' changeups and has some natural sink to it. His sinker is basically never swung at and missed compared to other pitchers' sinkers and results in somewhat more flyballs compared to other pitchers' sinkers. His fourseam fastball generates an extremely high number of swings & misses compared to other pitchers' fourseamers and has essentially average velo. His curve has an exceptional bite, has sweeping glove-side movement and results in somewhat more groundballs compared to other pitchers' curves.