In Race One, Joe Koenig, of Glenview, Ill., passed polesitter and early leader Kip Olson on lap nine, just before the race’s second full-course caution period came out, effectively ending the race. Koenig took the overall and Super Touring O class win in his No. 70 Drywall Art.com/Fall-Line Motorsports BMW M3. Olson did edge Koenig for the new class lap record though, with a 2:19.937 in his No. 49 Driving Ambition Acura NSX.

John Heinricy, of Holly, Mich., captured the Touring 1 class win in his No. 35 Torvec Chevrolet Corvette after polesitter and early leader Tom Sloe pulled off with a mechanical issue. David MacNeil, of Hinsdale, Ill., finished second in his No. 79 WeatherTech.com Ferrari F430 Challenge.

Andy McDermid, of Grand Ledge, Mich., went flag-to-flag for the American Sedan class win in his No. 24 Felice Performance Engines Ford Mustang over Richard Jones’ No. 77 Jomac Truck Bodies & Cranes Ford Mustang.

Joel Weinberger, of Hinsdale, Ill., and former National Champion Andy Wolverton, of Papilion, Neb., cruised to wins in Super Touring U and Touring 2, respectively. Weinberger set a new class lap record in his No. 3 Continental Audi of Naperville Audi A4, with a 2:32.937. Cooper MacNeil, of Hinsdale, Ill., equaled his father’s second place finish behind Wolverton’s No. 86 Raw Racing/Hoosier Tire Pontiac Solstice GXP in Touring 2.