Cubs–White Sox rivalry

The Cubs–White Sox rivalry (also known as the Crosstown Classic, The Windy City Showdown, Chicago Showdown, North–South Showdown, City Series, Crosstown Series, Crosstown Cup, or Crosstown Showdown) refers to the Major League Baseball (MLB) geographical rivalry between the Chicago Cubs and Chicago White Sox. The Cubs are a member club of MLB's National League (NL) Central division, and play their home games at Wrigley Field, located on Chicago's North Side. The White Sox are a member club of MLB's American League (AL) Central division, and play their home games at Rate Field, located on Chicago's South Side.

The terms "North Siders" and "South Siders" are synonymous with the respective teams and their fans, setting up an enduring rivalry. Fans from the North Shore and Chicago's northern suburbs tend to support the Cubs, whereas fans from the south side of Chicago tend to support the White Sox.

As of May 17, 2026, the Cubs lead the regular season series 78–77. There have been nine 3-game series sweeps since interleague play began: five by the Cubs in 1998, 2004, 2007, 2008, and 2025, and four by the White Sox in 1999, 2008, 2012 and 2021. There have been three season series sweeps, all by the Cubs in 1998 (3 games), 2013 (4 games) and 2024 (4 games). The Chicago Transit Authority's Red Line train has stops within a block of both ballparks: Addison station for Wrigley Field and Sox–35th station for Rate Field.