trophy has been contested in. Colorado In 2019 Air Force renewed a rivalry with Colorado, winning at Folsom Field on Sept. 14 by a score of 30–23. The teams had not played since Oct. 5, 1974, a game that Colorado won by a score of 28–27. Air Force won the first meeting between the teams in 1958. The 1963 game between the two college football teams was postponed due to the assassination of President John F. Kennedy. The 1973 game, the last one played in Boulder before the 2019 clash, was marred by a riot. Fans threw eggs and beer at Air Force personnel and cadets. Top 10 rivals Below are Air Force's records against its top ten most-played opponents since 1957. References External links 1955 establishments in Colorado American football teams established in 1955