The 2011 Lamar Hunt U.S. Open Cup Final was a soccer match between the Seattle Sounders FC and the Chicago Fire, played on October 4, 2011, at CenturyLink Field in Seattle, Washington. The match was the culmination of the 2011 Lamar Hunt U.S. Open Cup, a tournament open to amateur and professional soccer teams affiliated with the United States Soccer Federation (U.S. Soccer). This was the 98th edition of the U.S. Open Cup, the oldest ongoing competition in American soccer.