The International Race of Champions (IROC) was concieved in 1973 to bring the best of each racing series together to race. All 12 identically prepared cars are equiped with 350 cu in, 500 hp, V-8's. The only thing different on each car is the color and number. Drivers draw to see which car they get before each race. So a driver could have a different car in each race. The racers that competed in the 2004 series are:

1 Matt Kenseth NASCAR NEXTEL Cup
2 Ryan Newman NASCAR NEXTEL Cup
3 Kevin Harvick NASCAR NEXTEL Cup
4 *Jimmie Johnson NASCAR NEXTEL Cup
5 *Kurt Busch NASCAR NEXTEL Cup
6 Danny Lasoski World of Outlaws
7 Scott Sharp IRL IndyCar™ Series
8 Travis Kvapil NASCAR Craftsman Truck
9 Helio Castroneves IRL IndyCar™ Series
10 *Scott Dixon IRL IndyCar™ Series
11 *Steve Kinser World of Outlaws
12 J. J. Yeley USAC

The 2005 race schedule has just been announced:

Race One, Friday, Feb. 18, 2005 – Daytona International Speedway
Race Two, Friday, April 15, 2005 – Texas Motor Speedway
Race Three, Thursday, Sept. 8, 2005 – Richmond International Raceway
Race Four, Saturday, Oct. 29, 2005 – Atlanta Motor Speedway