Links for this race (some data may be unavailable): Race Results Qualifying Results Loop Data Stats Pit Stops Comments (3) Video Links (2) Crew Chiefs 1978 Race 1Previous race resultsNext race results Previous at this track / Next at this track PostIROC race number 1 of 4Saturday, September 17, 1977 at Michigan International Speedway, Brooklyn, MI50 laps on a 2.000 mile paved track (100.000 miles)Time of race: 0:39:36Average speed: 151.49 mphPole speed: 152.834 mphCautions: n/aMargin of victory: .33 clAttendance: n/aLead changes: 2Glossary 1978 IROC results / 1978 standings PosSt#DriverSponsor / OwnerCarLapsMoneyStatusLed1 42 Al Unser USACChevrolet50 running–2 28 Cale Yarborough NASCARChevrolet50 running–3 14 Darrell Waltrip NASCARChevrolet50 running–4 31 Richard Petty NASCARChevrolet50 running–5 75 Gunnar Nilsson FIAChevrolet50 running–6126 Gordon Johncock USACChevrolet50 running–7 67 Mario Andretti FIAChevrolet50 running–8103 Johnny Rutherford USACChevrolet50 running–9 512 Benny Parsons NASCARChevrolet49 running–10 89 Al Holbert IMSAChevrolet1 crash–11 911 Tom Sneva CARTChevrolet1 crash–121110 Jacky Ickx FIAChevrolet1 crash–