After posting a 9.49 ERA in six games from July 25 through August 23, Lincecum was replaced in the Giants rotation by Yusmeiro Petit. Bochy initially indicated that the move might only be for one start, but Lincecum would spend the rest of the season in the bullpen. On September 25, Lincecum threw two pitches, retiring Alexi Amarista to end the seventh inning, then became the pitcher of record as the Giants took the lead in the bottom of the inning. He won his 100th career game in a 9–8 victory over the Padres at AT&T Park. In 33 games (but only 26 starts), he had a 12–9 record, a 4.74 ERA, and 134 strikeouts in innings pitched.