The 2003 Chicago Cubs season was the 132nd season of the Chicago Cubs franchise, the 128th in the National League and the 88th at Wrigley Field. The Cubs were managed by Dusty Baker in his first year in Chicago. The Cubs went 88–74 during the 2003 season and won the National League Central Division for the first time since the division's formation in 1994, and the team's first division title since its 1989 NL East title. In the National League Division Series, the Cubs defeated the Atlanta Braves three games to two for their first postseason series win since 1908. The Cubs lost to the Florida Marlins four games to three in the National League Championship Series.