Super Bowl IV was an American football game played on January 11, 1970 at Tulane Stadium in New Orleans, Louisiana. It was the fourth and final AFL–NFL World Championship Game in professional football prior to the AFL–NFL merger taking effect the following season. The American Football League (AFL) champion Kansas City Chiefs defeated the National Football League (NFL) champion Minnesota Vikings by the score of 23–7. This victory by the AFL squared the Super Bowl series with the NFL at two games apiece as the two leagues merged into one after the game.