IROC XXX
The 30th and final season of the Crown Royal International Race of Champions began on Friday, February 17, 2006 at Daytona International Speedway. The all-star roster included thirteen drivers from seven premier racing series. Tony Stewart consistently ran up front and won two races and finished ahead of the equally consistent Matt Kenseth by 12 points. As with the past two editions, the drivers used their car colors and numbers from their native series. This was also the first IROC season since 1991 to include a road course race.
The roster of drivers and final points standings were as follows:
Drivers
| Car Number | Driver | Series |
| #1 |  Ted Musgrave | NASCAR Craftsman Truck Series |
| #6 | Mark Martin | NASCAR Nextel Cup Series |
| #06 |  Sam Hornish, Jr. | Indy Racing League |
| #8 | Martin Truex, Jr. | NASCAR Busch Series |
| #08 | Scott Sharp | Indy Racing League |
| #10 |  Wayne Taylor Max Angelelli | Grand-Am Rolex Sports Car |
| #11 | Steve Kinser | World of Outlaws |
| #12 | Ryan Newman | NASCAR Nextel Cup Series |
| #16 | Max Papis | Grand-Am Rolex Sports Car |
| #17 | Matt Kenseth | NASCAR Nextel Cup Series |
| #20 | Tony Stewart | NASCAR Nextel Cup Series |
| #46 | Frank Kimmel | ARCA RE/MAX Series |
Results
Race One ([Daytona International Speedway] oval)
- 17- Matt Kenseth
- 06- Sam Hornish, Jr.
- 46- Frank Kimmel
- 16- Max Papis
- 8- Martin Truex, Jr.
- 10- Wayne Taylor
- 11- Steve Kinser
- 20- Tony Stewart
- 08- Scott Sharp
- 1- Ted Musgrave
- 12- Ryan Newman
- 6- Mark Martin
Race Two ([Texas Motor Speedway])
- 20- Tony Stewart
- 12- Ryan Newman
- 8- Martin Truex, Jr.
- 6- Mark Martin
- 17- Matt Kenseth
- 10- Max Angelelli
- 08- Scott Sharp
- 46- Frank Kimmel
- 1- Ted Musgrave
- 16- Max Papis
- 11- Steve Kinser
- 06- Sam Hornish, Jr.
Race Three ([Daytona International Speedway] road course)
- 20- Tony Stewart
- 16- Max Papis
- 12- Ryan Newman
- 08- Scott Sharp
- 06- Sam Hornish, Jr.
- 8- Martin Truex, Jr.
- 10- Max Angelelli
- 46- Frank Kimmel
- 6- Mark Martin
- 17-Matt Kenseth
- 11- Steve Kinser
- 1- Ted Musgrave
Race Four ([Atlanta Motor Speedway])
- 8- Martin Truex, Jr.
- 17- Matt Kenseth
- 20- Tony Stewart
- 12- Ryan Newman
- 1- Ted Musgrave
- 6- Mark Martin
- 46- Frank Kimmel
- 16- Max Papis
- 06- Sam Hornish, Jr.
- 11- Steve Kinser
- 10- Wayne Taylor
- 08- Scott Sharp
Standings
| Driver | DAY | TEX | DAY | ATL | Pts | |
| 1 | Tony Stewart | 8 | 1 | 1 | 3 | 77 |
| 2 | Matt Kenseth | 1 | 5 | 10 | 2 | 65 |
| 3 | Martin Truex, Jr. | 5 | 3 | 6 | 1 | 57 |
| 4 | Ryan Newman | 11 | 2 | 3 | 4 | 54 |
| 5 | Mark Martin | 12 | 4 | 9 | 6 | 47 |
| 6 | Max Papis | 4 | 10 | 2 | 8 | 46 |
| 7 | Frank Kimmel | 3 | 8 | 8 | 7 | 40 |
| 8 | Sam Hornish, Jr. | 2 | 12 | 5 | 9 | 36 |
| 9 | Wayne Taylor | 6 | 11 | 30 | ||
| 9 | Max Angelelli | 6 | 7 | 30 | ||
| 10 | Scott Sharp | 9 | 7 | 4 | 12 | 29 |
| 11 | Ted Musgrave | 10 | 9 | 12 | 5 | 24 |
| 12 | Steve Kinser | 7 | 11 | 11 | 10 | 21 |