IROC XIII was the thirteenth year of IROC competition, which took place in 1989. it saw the use of the Chevrolet Camaro in all races for the final year, and continued the format introduced in IROC VIII. Race one took place on the Daytona International Speedway, race two took place at Nazareth Speedway, race three ran at Michigan International Speedway, and race four concluded the year at Watkins Glen International. Terry Labonte won the series championship and $204,900.

The roster of drivers and final points standings were as follows:IROC season statistics at racing-reference.info , Retrieved March 9, 2007 RankDriverPointsWinningsSeries 1 Terry Labonte 72 $204,900 NASCAR Winston Cup Series4th in 1988 Winston Cup points 2 Al Unser Jr. 60 $92,500 CART PPG IndyCar World Series2nd in 1988 IndyCar points2 time and defending IROC Champion 3 Rusty Wallace 58 $66,200 NASCAR Winston Cup Series2nd in 1988 Winston Cup points 4 Dale Earnhardt 57 $58,900 NASCAR Winston Cup Series3rd in 1988 Winston Cup points3 time Winston Cup champion 5 Scott Pruett 51 $55,700 IMSA Camel GTO1988 GTO Champion1988 24 Hours of Daytona GTO winner 6 Bill Elliott 38 $52,000 NASCAR Winston Cup Series1988 Winston Cup champion2 time Daytona 500 winner 7 A. J. Foyt 36 $54,000 CART PPG IndyCar World Series4 time Indianapolis 500 winner7 time IndyCar ChampionIROC III & IROC IV champion 8 Danny Sullivan 35 $49,400 CART PPG IndyCar World Series1988 IndyCar champion1985 Indianapolis 500 winner 9 Hurley Haywood 31 $46,000 SCCA Trans-Am Series1988 Trans-Am Champion 10 Geoff Brabham 1 24 $44,400 IMSA Camel GTP1988 GTP Champion2 time 24 Hours of Le Mans winner 11 Rick Mears 1 24 $42,100 CART PPG IndyCar World Series3 time Indianapolis 500 winner3 time IndyCar Champion4th in 1988 IndyCar points 12 Richard Petty 16 $40,400 NASCAR Winston Cup Series7 time Winston Cup Champion7 time Daytona 500 winnerMost ever NASCAR Cup race victories (200)

Race results Race One, Daytona International Speedway Friday, February 17, 1989 FinishGridCarno.DriverCar MakeCar ColorLapsStatusLapsLedPoints 1 12 12 Rusty Wallace Chevrolet Camaro 40 0:32:37 5 23 (2) 2 5 5 Terry Labonte Chevrolet Camaro 40 Flagged 6 20 (3) 3 7 7 Dale Earnhardt Chevrolet Camaro White 40 Flagged 20 19 (5) 4 10 10 Al Unser Jr. Chevrolet Camaro Lime 40 Flagged 5 14 (2) 5 3 3 Bill Elliott Chevrolet Camaro Powder Blue 40 Flagged 10 6 9 9 Hurley Haywood Chevrolet Camaro Yellow 40 Flagged 9 7 2 2 A. J. Foyt Chevrolet Camaro 40 Flagged 8 8 1 1 Rick Mears Chevrolet Camaro 40 Flagged 1 7 9 6 6 Richard Petty Chevrolet Camaro 40 Flagged 3 6 10 8 8 Scott Pruett Chevrolet Camaro 40 Flagged 5 11 11 11 Geoff Brabham Chevrolet Camaro 40 Flagged 4 12 4 4 Danny Sullivan Chevrolet Camaro 39 Flagged 3 (5) Indicates 5 bonus points added to normal race points scored for leading the most laps.(3) Indicates 3 bonus points added to normal race points scored for leading the 2nd most laps(2) Indicates 2 bonus points added to normal race points scored for leading the 3rd most laps.

Average speed: Cautions: noneMargin of victory: 1 clLead changes: 9

Race Two, Nazareth Speedway Saturday, April 29, 1989 FinishGridCarno.DriverCar MakeCar ColorLapsStatusLapsLedPoints 1 1 12 Danny Sullivan Chevrolet Camaro 75 0:45:40 14 23 (2) 2 3 10 Scott Pruett Chevrolet Camaro 75 Flagged 17 20 (3) 3 11 1 Rusty Wallace Chevrolet Camaro White 75 Flagged 4 14 4 9 4 Al Unser Jr. Chevrolet Camaro Light Blue 75 Flagged 12 5 4 7 A. J. Foyt Chevrolet Camaro 75 Flagged 40 15 (5) 6 10 2 Terry Labonte Chevrolet Camaro 74 Flagged 9 7 8 3 Dale Earnhardt Chevrolet Camaro 74 Flagged 8 8 12 11 Geoff Brabham 2 Chevrolet Camaro Yellow 74 Flagged 7 9 7 6 Hurley Haywood Chevrolet Camaro Light Orange 74 Flagged 6 10 5 8 Rick Mears Chevrolet Camaro Cream 74 Flagged 5 11 6 5 Bill Elliott Chevrolet Camaro 73 Flagged 4 12 2 9 Richard Petty Chevrolet Camaro 73 Flagged 3 (5) Indicates 5 bonus points added to normal race points scored for leading the most laps.(3) Indicates 3 bonus points added to normal race points scored for leading the 2nd most laps(2) Indicates 2 bonus points added to normal race points scored for leading the 3rd most laps. Average speed: Cautions: 3Margin of victory: 13.45 secLead changes: 6

Lap Leader Breakdown DriverFromLapToLapNumberof Laps Danny Sullivan 1 1 1 Scott Pruett 2 15 14 A. J. Foyt 18 36 19 Rusty Wallace 37 40 4 A. J. Foyt 41 59 19 Scott Pruett 60 62 3 Danny Sullivan 63 75 13

Race Three, Michigan International Speedway Saturday, August 5, 1989 FinishGridCarno.DriverCar MakeCar ColorLapsStatusLapsLedPoints 1 11 2 Terry Labonte Chevrolet Camaro Light Blue 50 0:37:54 33 26 (5) 2 10 3 Dale Earnhardt Chevrolet Camaro 50 Flagged 9 20 (3) 3 12 1 Rusty Wallace Chevrolet Camaro 50 Flagged 3 14 4 4 9 Bill Elliott Chevrolet Camaro 50 Flagged 12 5 7 6 Al Unser Jr. Chevrolet Camaro 50 Flagged 10 6 8 5 Scott Pruett Chevrolet Camaro Tan 50 Flagged 9 7 6 7 A. J. Foyt Chevrolet Camaro 50 Flagged 8 8 5 8 Hurley Haywood Chevrolet Camaro Lime 50 Flagged 7 9 3 10 Rick Mears Chevrolet Camaro Powder Blue 50 Flagged 6 10 9 4 Danny Sullivan Chevrolet Camaro Yellow 50 Flagged 5 11 1 12 Richard Petty Chevrolet Camaro 50 Flagged 1 4 12 2 11 Geoff Brabham Chevrolet Camaro White 50 Flagged 4 5 (2) (5) Indicates 5 bonus points added to normal race points scored for leading the most laps.(3) Indicates 3 bonus points added to normal race points scored for leading the 2nd most laps(2) Indicates 2 bonus points added to normal race points scored for leading the 3rd most laps.

Average speed: 158.343 mphCautions: noneMargin of victory: .47 secLead changes: 8

Race Four, Watkins Glen International Saturday, August 12, 1989 FinishGridCarno.DriverCar MakeCar ColorLapsStatusLapsLedPoints 1 4 4 Al Unser Jr. Chevrolet Camaro 30 0:39:08 20 26 (5) 2 5 5 Scott Pruett Chevrolet Camaro 30 Flagged 17 3 1 1 Terry Labonte Chevrolet Camaro Cream 30 Flagged 10 17 (3) 4 8 8 Bill Elliott Chevrolet Camaro 30 Flagged 12 5 3 3 Dale Earnhardt Chevrolet Camaro 30 Flagged 10 6 9 9 Hurley Haywood Chevrolet Camaro Yellow 30 Flagged 9 7 12 11 Geoff Brabham Chevrolet Camaro 30 Flagged 8 8 2 2 Rusty Wallace Chevrolet Camaro Powder Blue 30 Flagged 7 9 10 10 Rick Mears Chevrolet Camaro White 29 Flagged 6 10 6 6 A. J. Foyt Chevrolet Camaro Light Blue 28 Flagged 5 11 7 7 Danny Sullivan Chevrolet Camaro 27 Flagged 4 12 11 12 Richard Petty Chevrolet Camaro 17 Crash 3 (5) Indicates 5 bonus points added to normal race points scored for leading the most laps.(3) Indicates 3 bonus points added to normal race points scored for leading the 2nd most laps(2) Indicates 2 bonus points added to normal race points scored for leading the 3rd most laps (did not occur in this race so not awarded).

Average speed: Cautions: noneMargin of victory: 1.3 secLead changes: 1

Lap Leader Breakdown DriverFromLapToLapNumberof Laps Terry Labonte 1 10 10 Al Unser Jr. 11 30 20

Notes Geoff Brabham and Rick Mears tied for tenth place in the championship standings, but Brabham was awarded the position due to a higher finishing position in the final race. Geoff Brabham started from the back of the field in a back up car after an accident on the first lap.

References

External links IROC XIII History - IROC Website