Since the Texas Rangers made it to the World Series, along with the San Francisco Giants, Molina became the sixth player to play for the two World Series teams in the same season. Due to having played for both Giants and Rangers during the 2010 season, Molina was guaranteed to receive a World Series ring regardless of whether his current or former team won the World Series. In the 2010 World Series, Molina batted only .182 with one RBI. The Rangers eventually lost the World Series to the Giants in five games. After the season was over, Molina was released as a free agent.