Race action from the IMSA Prototype Challenge by Mazda, from Watkins Glen. Race 1: Race 2:
Races
A new championship for North America in 2017, and this is the series debut. Commentary from Jim Roller and Shea Adam. Race 1: Race 2:
John Hindhaugh, Shea Adam and Marshall Pruett look back at the 2016 season of the WeatherTech Sportscar Championship and Continental Tire Sportscar Challenge.