The 1933 National Challenge Cup was the annual open cup held by the United States Football Association now known as the Lamar Hunt U.S. Open Cup. As in 1931, the ASL teams played a round robin format instead of direct knockout games. The five New York teams formed the Metropolitan group. The New England group included the three remaining ASL teams along with Victoria Mills of the Southern New England Association who qualified by defeating Fairlawn Rovers. The Round Robin was somewhat unpopular because of the methods used. Despite a league setup, games tied at the end of regulation were to go into overtime. In the event of a tie in the standings, goal average was used to break the tie. A slight controversy ensued when a game between Boston and Fall River was called at the 78th minute with t