"That's how you win a NAS Truck race there, boys and girls. I hope I put on a show for you.
I didn't want to fall back, but I don't know what happened with that set of tires. It was literally undrivable," said Riggs.
The winning move followed a strategic pit stop gamble for adjustments and fresh tires with 32 laps remaining in the event.
"[Crew chief] Dylan [Capello] made the right adjustments there, got me the tires, got me the motivation and drove to the front," said Riggs.
Smith provided the critical final-lap push that allowed Riggs to clear Caruth and secure the victory.
"So proud of the awesome finish there with the 38 truck (Smith), he gave me the push for the win and good racing there with Chandler tonight," said Riggs.
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Caruth, who led 44 laps during the event, fell just short of becoming the second driver in history to achieve back-to-back victories on the 1.33-mile Nashville concrete oval after qualifying was canceled due to rain.
"I was trying to make this thing as wide as possible," said Caruth.
Caruth credited crew chief Brian Pattie for the strategy but acknowledged that starting from the back of the grid complicated their race tracking.
"But that was a great call by Brian.
We were strong, but starting at the back because of qualifying [being rained out] kind of impacted our night.
We got the car really strong there and probably some things I could have done better," said Caruth.
