Sebring 12H, Florida

13-14/04

Long Beach, California

10-12/05

Laguna Seca, California

06-07/07

Lime Rock Park, Connecticut

20-22/07

Mosport, Ontario

02-04/08

Mid-Ohio, Ohio

16-18/08

Road America, Wisconsin

31-01/09

Baltimore, Maryland

13-15/09

Virginia International Raceway, Virginia

17-20/10

Petit Le mans, Georgia

30-31/03

Barber Motorsport Park

27-29/04

Homestead Miami Speedway

22-23/06

Road America

29-01/07

Sahlen´s Six Hours of the Glen, Watkins Glen

26-27/07

Indianapolis Motor Speedway

10-11/08

Watkins Glen International

07-09/09

Laguna Seca

28-29/09

Lime Rock Park