2004 Grand Prix of Mosport

The 2004 Toronto Grand Prix of Mosport was an American Le Mans Series professional sports car race held at Mosport International Raceway near Bowmanville, Ontario, Canada from August 6 to the 8, 2004.

After winning the previous four rounds, ADT Champion Racing drivers Marco Werner and JJ Lehto finished second in the Audi R8, with the second Dyson Racing entry of Chris Dyson and Andy Wallace finishing third.

The GTS class win went to Corvette Racing's Oliver Gavin and Olivier Beretta in the Chevrolet Corvette C5-R, with Intersport Racing's Clint Field and Robin Liddell taking the LMP2 victory in the Lola B2K/40.

Alex Job Racing drivers Jörg Bergmeister and Timo Bernhard won the GT class in a Porsche 911 GT3-RSR.

Cars failing to complete 70% of winner's distance marked as Not Classified (NC).