The Cardinals won the NLCS to advance to the World Series. In Game 1 of the World Series against the Boston Red Sox, Kozma was involved in a controversial error/blown call that was overturned by the umpiring crew. He mishandled and dropped a ball tossed to him that would have commenced an inning-ending double play. Red Sox manager John Farrell leapt of the dugout, confronted umpire Dana DeMuth and requested that the umpire crew get together and make a group decision on the ruling. The umpires ultimately ruled that Kozma never had control of the ball, and the inning continued. Boston went on to score three runs that inning, and eventually went on to win the championship in six games.