 As a quarterback and cornerback in his senior season in 1964, Allen and end/placekicker Roy Jefferson led the Utes to a record, including a victory over favored West Virginia in the Liberty Bowl, played indoors in Atlantic City; Allen was named the game's most valuable player.Allen played three seasons of professional football in the Canadian Football League with the BC Lions and Edmonton Eskimos, primarily as a defensive back.Through 38 total regular season games, he recorded eight interceptions and two fumble recoveries.