The 2013 Mobil 1 SportsCar Grand Prix was an auto racing event held at Canadian Tire Motorsports Park, Bowmanville, Ontario, Canada from July 19–21, 2013 The race was the fifth round of the 2013 American Le Mans Series season. Muscle Milk Pickett Racing, with drivers Klaus Graf and Lucas Luhr, extended their streak of season victories to four by earning a win with a four lap gap over second place and P2 class winners Level 5 Motorsports. CORE Autosport led the PC category, while Corvette Racing scored their third victory of the season in the GT class. Alex Job Racing won the GTC category, two weeks after badly damaging their car at the previous event in Lime Rock.

The Chevrolet Grand Prix is an annual IMSA WeatherTech SportsCar Championship race held every July at Canadian Tire Motorsport Park in Bowmanville, Ontario, Canada. The race originated in 1975 and is currently a two hour and forty minute race in order to fit the event into a television-friendly package. Previous editions of the Grand Prix were part of the World Sportscar Championship, the American Le Mans Series and the IMSA GT Championship.