The racing action continued in Motor City as Thor riders Jason Anderson, Marvin Musquin, and Aaron Plessinger all made the podium. Due to a technicality, Anderson was awarded the win and Musquin moved up from third to second in the 450SX class.
Jason Anderson was looking speedy all night, clocking the second fastest lap of the evening and transferring easily from heat race 1. In the main event, Anderson put in a solid start and was in the top five where he worked his way to a podium position by lap 3. Anderson stalked Marvin Musquin for the remainder of the race, and when a bobble slowed down the frenchman, Anderson capitalized and claimed second for the evening. After officials reviewed the race, it was determined race winner Ryan Dungey had in fact jumped a section during a red-cross flag and would be penalized two positions, effectively handing over the win to Anderson.
Marvin Musquin was vexed by minor set backs most of the evening, yet bounced back for an excellent finish for the night. In his heat race Musquin went down hard and was unable to complete the race due to bike issues. He lined up again for the semi race 1 and lead the race from start to finish. In the main event Musquin rushed out of the gate to second place and chased Dungey for most of the race. On the second to last lap Musquin slid out and Anderson sped by for second, with Musquin remounting to finish third. After penalties were handed out to Dungey for his infraction Musquin was awarded second place for the evening.
Aaron Plessinger was switched on all night in Detroit. He started off with a lap by lap battle with Tonus in heat race 1, and made the transfer to the main. In the 250 main event Plessinger fired off the gate and claimed the holeshot. He raced hard the entire moto, swapping positions and ultimately finishing second behind Malcolm Stewart.
Jeremy Martin had a difficult night from the get-go. First by having a small crash in his heat race, but still managing to work his way to a transfer position. Then in the main event, Martin found more bad luck in turn one as he and Bowers tangled bars and went down as the field raced on. Martin remounted and was charging hard through the pack when another mistake put him on the ground, which forced him into the pits to have his tweaked bike readjusted. Martin refused to throw in the towel and rejoined the race, salvaging championship points in 13th place.