Gonzalez’s changeup lived and died by it’s zone rate. He threw the pitch in the zone just 27% of the time, which explains the 22% walk rate. However, he also got a 19% swinging strike rate and 37% O-Swing%, which led to a 32% K%. Basically, Gonzalez kept the pitch out of the zone, which led to either bad chase swings or walks. When batters did make contact, they batted just .118 on balls put in play.
Chi Chi struggled with the control of his primary pitch, walking batters at a 14.4% rate. The saving grace of the pitch was a .253 BABIP, which led to a .229 average. Overall, the pitch earned a 4.6 pVAL.
Gonzalez’s sinker only found the zone on 38% of the time, which explains him walking double the batters that he struck out. Gonzalez allowed a 151 wRC+ on the pitch which led to a -3.7 pVAL.
Gonzalez’s slider serves as his primary off-speed pitch. While the pitch had a 10.7% swinging strike rate, that converted to just a 15.9% strikeout rate. He also allowed a 29.5% line drive rate on the pitch.