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The NASCAR Camping World Truck Series' Canadian Tire Motorsport Park event concluded with controversy and fireworks after Cole Custer and John Hunter Nemechek let their on-track aggressions trickle into post-race anger.
During the overtime finish, the pair raced side-by-side with Nemechek's NEMCO Motorsports No. 8 Chevrolet pushing Custer's No. 00 JR Motorsports Chevrolet onto the grass with the checkered flag in sight. Nemechek inched ahead at the finish to claim his second victory of the season.
After the cool-down lap, Custer tackled Nemechek as he waited to receive the checkered flag during an official review of the finish.
"I got taken out. He hit me going into the second to race corner and he hit me again," Custer said following the altercation.
Nemechek led 19 of the 66 laps in the Chevrolet Silverado 250 for his third career victory in the Camping World Truck Series.
"I caught the double-zero there and we didn't wreck him for the win. Rubbin's racing, but if I would've been in the same spot, he would've done the same thing to me to get a win," Nemechek said in Victory Lane. "You have to do everything you can to get a win here, but I can't thank all my guys enough. They worked their butts off."
When asked if he planned to have a conversation with Custer afterward to sort out their differences, Nemechek was noncommittal.
"No, we'll just kind of see where it goes," he said. "If we have a conversation, we will. If not, we won't."
Custer led a race-high 39 laps and wound up second.