Lincecum was the only player on the Giants' 25-man roster who was not used during the NLDS and the NLCS. He finally made an appearance in Game 2 of the 2014 World Series against the Kansas City Royals, entering to start the bottom of the seventh inning and retiring all five batters he faced. Lincecum left the game in the eighth inning with lower back tightness. He did not pitch again in the series, but the Giants defeated the Royals in seven games, giving Lincecum the third World Series championship of his career.