IROC XI
IROC XI was the eleventh year of IROC competition, which took place in 1987. It saw the use of the Chevrolet Camaro in all races, the beginning of a long partnership with ABC/ESPN, and continued the format introduced in IROC VIII. Race one took place on the Daytona International Speedway, race two took place at Mid-Ohio, race three ran at Michigan International Speedway, and race four concluded the year at Watkins Glen International. Geoff Bodine won the championship and $191,900.

The roster of drivers and final points standings were as follows:[1]
Race results
    
    Race One, Daytona International Speedway
    
Friday, February 13, 1987
| Finish | Grid | Car no.  | 
Driver | Car Make | Car Color | Laps | Status | Laps Led  | 
Points | 
|---|---|---|---|---|---|---|---|---|---|
| 1 | 5 | 2 | Chevrolet Camaro | Dark Blue  | 40 | 0:32:40 | 21 | 26 (5) | |
| 2 | 8 | 12 | Chevrolet Camaro | Dark Red  | 40 | Flagged | 17 | ||
| 3 | 1 | 7 | Chevrolet Camaro | Blue  | 40 | Flagged | 14 | ||
| 4 | 4 | 5 | Chevrolet Camaro |  Powder Blue  | 40 | Flagged | 14 | 15 (3) | |
| 5 | 7 | 6 | Chevrolet Camaro |  Yellow  | 40 | Flagged | 10 | ||
| 6 | 2 | 1 | Chevrolet Camaro |  White  | 39 | Flagged | 4 | 11 (2) | |
| 7 | 6 | 8 | Chevrolet Camaro | Black  | 35 | Flagged | 1 | 8 | |
| 8 | 12 | 20 | Chevrolet Camaro | Purple  | 31 | Flagged | 7 | ||
| 9 | 3 | 18 | Chevrolet Camaro |  Light Blue  | 30 | Engine | 6 | ||
| 10 | 10 | 17 | Chevrolet Camaro |  Silver  | 16 | Crash | 5 | ||
| 11 | 9 | 4 | Chevrolet Camaro | Rose  | 16 | Crash | 4 | ||
| 12 | 11 | 8 | Chevrolet Camaro |  Orange  | 1 | 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.
Average speed: 183.673 mph (295.593 km/h)
Cautions: 3
Margin of victory: 1 cl
Lead changes: 5
Race Two, Mid-Ohio Sports Car Course
    
Saturday, June 6, 1987
| Finish | Grid | Car no.  | 
Driver | Car Make | Car Color | Laps | Status | Laps Led  | 
Points | 
|---|---|---|---|---|---|---|---|---|---|
| 1 | 5 | 10 | Chevrolet Camaro | Orange-Red  | 29 | 0:48:44 | 9 | 24 (3) | |
| 2 | 7 | 20 | Chevrolet Camaro | Purple  | 29 | Flagged | 17 | ||
| 3 | 1 | 5 | Chevrolet Camaro |  Powder Blue  | 29 | Flagged | 20 | 19 (5) | |
| 4 | 8 | 18 | Chevrolet Camaro | Teal  | 29 | Flagged | 12 | ||
| 5 | 12 | 1 | Chevrolet Camaro |  White  | 29 | Flagged | 10 | ||
| 6 | 4 | 11 | Chevrolet Camaro | Red  | 29 | Flagged | 9 | ||
| 7 | 9 | 7 | Chevrolet Camaro | Blue  | 29 | Flagged | 8 | ||
| 8 | 6 | 6 | Chevrolet Camaro |  Yellow  | 29 | Flagged | 7 | ||
| 9 | 2 | 9 | Chevrolet Camaro |  Gold  | 29 | Flagged | 6 | ||
| 10 | 3 | 12 | Chevrolet Camaro | Dark Red  | 29 | Flagged | 5 | ||
| 11 | 11 | 2 | Chevrolet Camaro | Dark Blue  | 29 | Flagged | 4 | ||
| 12 | 10 | 8 | Chevrolet Camaro |  Orange  | 23 | Spin | 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: 85.702 mph
Cautions: none
Margin of victory: 1.7 sec
Lead changes: 1
Lap Leader Breakdown
| Driver | From Lap  | 
To Lap  | 
Number of Laps  | 
|---|---|---|---|
| Michael Andretti | 1 | 20 | 20 | 
| Bobby Rahall | 21 | 29 | 9 | 
Race Three, Michigan International Speedway
    
Saturday, August 1, 1987
| Finish | Grid | Car no.  | 
Driver | Car Make | Car Color | Laps | Status | Laps Led  | 
Points | 
|---|---|---|---|---|---|---|---|---|---|
| 1 | 7 | 6 | Chevrolet Camaro |  Powder Blue  | 50 | 0:38:53 | 26 | 26 (5) | |
| 2 | 5 | 17 | Chevrolet Camaro |  Silver  | 50 | Flagged | 24 | 20 (3) | |
| 3 | 12 | 3 | Chevrolet Camaro | Rose  | 50 | Flagged | 14 | ||
| 4 | 10 | 1 | Chevrolet Camaro |  White  | 50 | Flagged | 12 | ||
| 5 | 2 | 8 | Chevrolet Camaro |  Orange  | 50 | Flagged | 10 | ||
| 6 | 1 | 12 | Chevrolet Camaro | Dark Red  | 50 | Flagged | 9 | ||
| 7 | 4 | 6 | Chevrolet Camaro |  Yellow  | 50 | Flagged | 8 | ||
| 8 | 3 | 22 | Chevrolet Camaro | Black  | 50 | Flagged | 7 | ||
| 9 | 11 | 15 | Chevrolet Camaro |  Gold  | 50 | Flagged | 6 | ||
| 10 | 9 | 4 | Chevrolet Camaro |  Cream  | 50 | Flagged | 5 | ||
| 11 | 8 | 2 | Chevrolet Camaro | Dark Blue  | 47 | Flagged | 4 | ||
| 12 | 6 | 14 | Chevrolet Camaro |  Lime  | 12 | 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: 155.633 mph
Cautions: 1 (Lap 12, Dale Earnhardt crash)
Margin of victory: .03 sec
Lead changes: 6
Race Four, Watkins Glen International
    
Saturday, August 8, 1987
| Finish | Grid | Car no.  | 
Driver | Car Make | Car Color | Laps | Status | Laps Led  | 
Points | 
|---|---|---|---|---|---|---|---|---|---|
| 1 | 1 | 9 | Chevrolet Camaro |  Mustard  | 30 | 0:39:34 | 30 | 26 (5) | |
| 2 | 2 | 3 | Chevrolet Camaro | Rose  | 30 | Flagged | 17 | ||
| 3 | 5 | 7 | Chevrolet Camaro | Blue  | 30 | Flagged | 14 | ||
| 4 | 11 | 5 | Chevrolet Camaro |  Powder Blue  | 30 | Flagged | 12 | ||
| 5 | 6 | 22 | Chevrolet Camaro | Black  | 30 | Flagged | 10 | ||
| 6 | 10 | 20 | Chevrolet Camaro | Purple  | 30 | Flagged | 9 | ||
| 7 | 12 | 6 | Chevrolet Camaro |  Yellow  | 30 | Flagged | 8 | ||
| 8 | 7 | 8 | Chevrolet Camaro |  Orange  | 30 | Flagged | 7 | ||
| 9 | 8 | 18 | Chevrolet Camaro |  Light Blue  | 30 | Flagged | 6 | ||
| 10 | 4 | 11 | Chevrolet Camaro | Dark Red  | 30 | Flagged | 5 | ||
| 11 | 9 | 10 | Chevrolet Camaro | Red  | 30 | Flagged | 4 | ||
| 12 | 3 | 17 | Chevrolet Camaro |  Silver  | 30 | 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 (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: 110.457 mph (177.763 km/h)
Cautions: none
Margin of victory: 2.02 sec
Lead changes: 0
References
    
- IROC season statistics at racing-reference.info, Retrieved March 9, 2007