Giants Rookie Kai-Wei Teng Set for Final Start Against Rockies, Showing Promising Underlying Metrics

San Francisco Giants rookie pitcher Kai-Wei Teng is slated to make his final start of the season on Friday against the Colorado Rockies at home. The 26-year-old right-hander, despite a 6.41 ERA through seven outings, boasts a more encouraging 3.30 FIP, having allowed only one home run and recording a 33/15 K/BB ratio in 26 2/3 innings. Teng has previously found success against the Rockies, allowing just two runs and striking out eight over 5 1/3 innings in a September 1st outing at Coors Field. His increased slider usage, now at 46%, has proven effective, with opponents batting only .214 against the pitch, making him a viable option for his upcoming start as of September 19, 2025.