IROC XV
IROC XV was the fifteenth year of IROC competition, which took place in 1991. It was the second year the Dodge Daytona was used in competition, and continued the format introduced in IROC VIII. Race one took place on the Daytona International Speedway, race two took place at Talladega Superspeedway, race three ran at Michigan International Speedway, and the year finished at Watkins Glen International. Rusty Wallace won the series championship and $175,000.
The roster of drivers and final points standings were as follows:
| Rank | Driver | Points | Winnings | Series |
|---|---|---|---|---|
| 1 |  Rusty Wallace | 86 | $175,000 | NASCAR Winston Cup |
| 2 | Bill Elliott | 64 | $65,000 | NASCAR Winston Cup |
| 3 | Mark Martin | 56 | $55,000 | NASCAR Winston Cup |
| 4 | Scott Pruett | 51 | $50,000 | IndyCar |
| 5 | Al Unser Jr. | 47 | $45,000 | IndyCar |
| 6 | Al Unser | 37 | $40,000 | IndyCar |
| 7 |  Geoff Brabham | 30 | $40,000 | IMSA Camel GT |
| 8 | Geoff Bodine | 29 | $40,000 | NASCAR Winston Cup |
| 9 | Dale Earnhardt | 27 | $40,000 | NASCAR Winston Cup Defending IROC Champion |
| 10 |  Bob Wollek | 25 | $40,000 | WSPC |
| 11 | Tom Kendall1 | 24 | $40,000 | IMSA Camel GT |
| 12 | Dorsey Schroeder | 16 | $40,000 | IMSA Camel GT |