Chicago White Sox
The 1906 World Series was the championship series in Major League Baseball for the 1906 season. The third edition of the World Series, it featured a crosstown matchup between the American League (AL) champion Chicago White Sox and the National League (NL) champion Chicago Cubs. The Cubs had posted the highest regular-season win total (116) and winning percentage (.763) in the major leagues since the advent of the modern era in 1901. The White Sox, known as the "Hitless Wonders" after finishing with the worst team batting average (.230) in the American League, beat the Cubs in six games for one of the greatest upsets in Series history as the Sox out-pitched the Cubs in their first two wins and out-hit them in their last two. The White Sox won their first championship in franchise history, and this was the first major professional sports championship ever won by a Chicago-based team. The home teams alternated, starting with the National League Cubs being home in Game 1. Won the 1906 World Series on October 14, 1906. Wiki link