NASCAR star Tony Stewart won't win the Nextel Cup title this season, but that doesn't mean he won't rack up another championship.

Stewart, who failed to make the 10-man Chase for the championship, has won two of three 2006 races in the Crown Royal International Race of Champions Series and can wrap up his first IROC title with a strong showing in Saturday's finale at Atlanta Motor Speedway.

He enters the race leading fellow Cup driver Matt Kenseth 62-48 in the points. NASCAR's Ryan Newman and Grand American sports car racer Max Papis are tied for third with 39 points.