IROC XII

IROC XII was the twelfth year of IROC competition took place in 1988. It saw the use of the Chevrolet Camaro in all races, and continued the format introduced in IROC VIII. Race one took place on the Daytona International Speedway, race two took place at Riverside International Raceway, race three ran at Michigan International Speedway, and race four concluded the year at Watkins Glen International. Al Unser Jr. won his second championship and $211,900.

Al Unser Jr. (seen in 2011), the IROC XII champion

The roster of drivers and final points standings were as follows:[1]

Rank Driver Points Winnings Series
1United States Al Unser Jr.66$211,900CART PPG IndyCar World Series
3rd in 1987 IndyCar points
1987 24 Hours of Daytona GTP winner
IROC X Champion
2United States Terry Labonte55$95,000NASCAR Winston Cup Series
3rd in 1987 Winston Cup points
3United States Scott Pruett51$72,900SCCA Trans-Am Series
1987 Trans-Am Champion
1987 24 Hours of Daytona GTO winner
4United States Bill Elliott46$58,900NASCAR Winston Cup Series
2nd in 1987 Winston Cup points
1987 24 Hours of Daytona GTO winner
5United States Dale Earnhardt 145$51,000NASCAR Winston Cup Series
1987 Winston Cup Series Champion
6United States Geoff Bodine 145$49,500NASCAR Winston Cup Series
Defending IROC Champion
7United States Al Holbert39$35,000IMSA Camel GTP
1987 24 Hours of Daytona GTP winner
1987 24 Hours of Le Mans winner
4th in 1987 IMSA GTP points
8United States Al Unser38$34,000CART PPG IndyCar World Series
1987 Indianapolis 500 winner
IROC V Champion
9United States Chip Robinson36$38,000IMSA Camel GTP
1987 Camel GTP Champion
1987 24 Hours of Daytona GTP winner
10United States Chris Cord26$32,000IMSA Camel GTO
1987 Camel GTO Champion
11United States Bobby Rahal24$31,000CART PPG IndyCar World Series & IMSA Camel GTP
1987 IndyCar Champion
1987 12 Hours of Sebring GTP winner
5th in 1987 Camel GTP points
12Colombia Roberto Guerrero19$30,400CART PPG IndyCar World Series
4th in 1987 IndyCar points

Race results

Race One, Daytona International Speedway

Friday, February 12, 1988

Finish Grid Car
no.
Driver Car Make Car Color Laps Status Laps
Led
Points
1115United States Bill ElliottChevrolet Camaro
Gold
400:32:134026 (5)
2614United States Dale EarnhardtChevrolet Camaro
Lime
40Flagged17
3523United States Terry LabonteChevrolet Camaro
Pink
40Flagged14
493United States Al Unser Jr.Chevrolet Camaro
Rose
40Flagged12
5712United States Geoff BodineChevrolet Camaro
Red
40Flagged10
6217United States Al UnserChevrolet Camaro
Silver
40Flagged9
7824United States Al HolbertChevrolet Camaro
Light Blue
40Flagged8
8111United States Scott PruettChevrolet Camaro
Grey
40Flagged7
9108United States Chris CordChevrolet Camaro
Orange
40Flagged6
1044United States Bobby RahalChevrolet Camaro
Tan
39Flagged5
1132United States Chip RobinsonChevrolet Camaro
Dark Blue
37Flagged4
1212 ??Colombia Roberto GuerreroChevrolet Camaro
Aqua
0Did Not Start,
Injured
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 (did not occur in this race so not awarded).
(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: 186.239 mph (299.723 km/h)
Cautions: 1
Margin of victory: 2 cl
Lead changes: 0

Race Two, Riverside International Raceway

Saturday, June 11, 1988

Finish Grid Car
no.
Driver Car Make Car Color Laps Status Laps
Led
Points
158United States Scott PruettChevrolet Camaro
Mustard
300:46:341024 (3)
2211United States Chip RobinsonChevrolet Camaro
Orange
30Flagged2022 (5)
394United States Al Unser Jr.Chevrolet Camaro
Dark Orange
30Flagged14
4103United States Terry LabonteChevrolet Camaro
Lime
30Flagged12
567United States Al HolbertChevrolet Camaro
Dark Purple
30Flagged10
676United States Al UnserChevrolet Camaro
Silver
30Flagged9
749United States Chris CordChevrolet Camaro
Aqua
30Flagged8
8310United States Bobby RahalChevrolet Camaro
Medium Blue
30Flagged7
985United States Geoff BodineChevrolet Camaro
Red
29Flagged6
10121United States Bill ElliottChevrolet Camaro
Yellow
29Flagged5
11112Colombia Roberto GuerreroChevrolet Camaro
Purple
10Crash4
12112United States Dale EarnhardtChevrolet Camaro
Bronze
10Crash3

(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: 98.182 mph (158.009 km/h)
Cautions: 2
Margin of victory: 2 sec
Lead changes: 1 Lap Leader Breakdown

Driver From
Lap
To
Lap
Number
of Laps
Chip Robinson12020
Scott Pruett213010

Race Three, Michigan International Speedway

Saturday, August 6, 1988

Finish Grid Car
no.
Driver Car Make Car Color Laps Status Laps
Led
Points
139United States Geoff BodineChevrolet Camaro
Yellow
500:37:384626 (5)
266United States Dale EarnhardtChevrolet Camaro
Dark Blue
50Flagged17
384United States Al Unser Jr.Chevrolet Camaro
Lime
50Flagged14
475United States Terry LabonteChevrolet Camaro
Orange
50Flagged12
548United States Al UnserChevrolet Camaro
Blue
50Flagged10
657United States Al HolbertChevrolet Camaro
White
50Flagged9
7102United States Bill ElliottChevrolet Camaro
Silver
50Flagged8
8211United States Bobby RahalChevrolet Camaro
Aqua
50Flagged7
9111United States Scott PruettChevrolet Camaro
Pink
50Flagged6
10112Colombia Roberto GuerreroChevrolet Camaro
Tan
50Flagged48 (3)
1193United States Chip RobinsonChevrolet Camaro
Black
50Flagged4
12X10United States Chris CordChevrolet CamaroNot assigned0Did Not Start,
Injured
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: 159.432 mph (256.581 km/h)
Cautions: none
Margin of victory: 0.78 sec
Lead changes: 1 Lap Leader Breakdown

Driver From
Lap
To
Lap
Number
of Laps
Roberto Guerrero144
Geoff Bodine55046

Race Four, Watkins Glen International

Saturday, August 13, 1988

Finish Grid Car
no.
Driver Car Make Car Color Laps Status Laps
Led
Points
122United States Al Unser Jr.Chevrolet Camaro
Silver
300:39:223026 (5)
244United States Terry LabonteChevrolet Camaro
Lime
30Flagged17
366United States Scott PruettChevrolet Camaro
White
30Flagged14
499United States Al HolbertChevrolet Camaro
Blue
30Flagged12
588United States Al UnserChevrolet Camaro
Aqua
30Flagged10
61111United States Chris CordChevrolet Camaro
Orange
30Flagged9
755United States Dale EarnhardtChevrolet Camaro
Red
30Flagged8
833United States Bill ElliottChevrolet Camaro
Rose
30Flagged7
977United States Chip RobinsonChevrolet Camaro
Powder Blue
29Flagged6
101010United States Bobby RahalChevrolet Camaro
Purple
29Flagged5
111212Colombia Roberto GuerreroChevrolet Camaro
Dark Blue
20Flagged4
1211United States Geoff BodineChevrolet Camaro
Gold
16Crash3

(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 (did not occur in this race so not awarded).
(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: 110.924 mph (178.515 km/h)
Cautions: 3
Margin of victory: 1.58 sec
Lead changes: 0

Notes

  1. Dale Earnhardt and Geoff Bodine tied for fifth place in the championship standings, but Earnhardt was awarded the position due to a higher finishing position in the final race.

References

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