super bowl xi : raiders 32 , minnesota 14 ; jan. 9 , 1977 , at the rose bowl , pasadena ; the raiders , behind clarence davis ' 137 yards in 16 carries , outrushed the vikings 266-71 in a battle of teams seeking their first super bowl victory. ; super bowl xii : dallas 27 , denver 10 ; jan. 15 , 1978 , at the louisiana superdome , new orleans ; dallas limited denver quarterbacks craig morton and norris weese to 8 of 25 passing for 61 yards and intercepted four passes. ;