A.J. Foyt, oo ku guuleystay orodkiisii 500 ee ugu horeeyay 1961, wuxuu ku guuleystay Indianapolis 1964
, taas oo ahayd guushii ugu dambeysay ee gaari hor leh, tan iyo guushii Jim Clark ee kaxeynayay Lotus 38 oo leh matoor gadaal ah 1965, guuleyste kastaa wuxuu wadey baabuur gadaal leh. Graham Hill ayaa ku guuleystay sanadkii xigay isku daygiisii ugu horreeyay, ugu dambeyntiina wuxuu noqday wadista kaliya ee ilaa maanta gaadhay tartanka gawaarida ee "Triple Crown of Motorsport" ee ku guuleystay Monaco Grand Prix, Indianapolis 500, iyo Le Mans 24 Saacadood. Waxaa jiray dad Mareykan ah oo ku filan oo la tartami kara iyaga, iyadoo AJ Foyt, Mario Andretti, iyo walaalaha Unser ee Bobby iyo Al ay hogaaminayeen eedeynta sanadihii 1960-naadkii iyo 1970-yadii, kuwaas oo Foyt iyo Al Unser ay ugu dambeyntii noqon lahaayeen, siday u kala horreeyaan, labadii ugu horreysay ee afar darawal ah, illaa maanta, inay ku guuleystaan afar jeer midkiiba, halka Bobby Unser uu ku guuleystay tartanka saddex jeer, iyadoo Andretti uu kaliya ku guuleystay tartanka hal mar, 1969. Andretti wuxuu ku tartami lahaa F1 wuxuuna ku guuleysan lahaa horyaalka adduunka ee 1965 kooxda Lotus, oo ahayd kooxdii ugu horreysay ee guuleysata mashiinka gadaal ee Indy, oo leh Clark, 1965.