An official walks along pit road before a NASCAR Truck Series race on Monday, March 29, 2021, in Bristol, Tenn. (AP Photo/Wade Payne)BRISTOL, Tenn. – Martin Truex Jr. ent...

Racers crash during the last lap in the NASCAR Daytona 500 auto race at Daytona International Speedway, Monday, Feb. 15, 2021, in Daytona Beach, Fla. (AP Photo/Chris O'Me...

Heavy rain soaked the track early, though, prompting officials to shift gears before the Xfinity Series opener later Saturday. An ARCA series race also was scheduled for ...