High Quality Content by WIKIPEDIA articles! The Texas Rangers’ 2010 season was the 50th in franchise history. The team, managed by Ron Washington, won their first division title since 1999 and reached the World Series for the first time in only their fourth playoff appearance. Washington would become only the second manager in franchise history to lead the Rangers to the post season and the first to ever win a post season series. They would win the American League pennant by defeating the defending World Series champions, the New York Yankees in six games in the ALCS. In the World Series, they lost to the San Francisco Giants in five games.