Paul Menard (21) leads the NASCAR Clash auto race on lap seven just before rain delayed the race at Daytona International Speedway, Sunday, Feb. 10, 2019, in Daytona Beach, Fla. (AP Photo/Terry Renna)

FILE - In this Feb. 10, 2019, file photo, Brendan Gaughan walks down pit road during qualifying for the Daytona 500 auto race at Daytona International Speedway, in Daytona Beach, Fla. Brendan Gaughan is the son of a casino magnate and has long grasped the allure of throwing down a few bucks _ or so much more _ to wager on a sporting event. Heck, Gaughan once placed a bet on himself in Las Vegas to win the 2004 Daytona 500. (AP Photo/Terry Renna, File)

FILE - In this Jan. 23, 2017, file photo, NASCAR executive Steve O'Donnell speaks at a press conference in Charlotte, N.C. NASCAR is on board _ and on the boards of sportsbooks from Nevada and beyond _ with legalized betting in 2019. "I wanted to go all in on gambling last year," NASCAR executive Steve O'Donnell said. (Jeff Siner/The Charlotte Observer via AP, File)

Drivers sit on pit road while in a rain delay during the NASCAR Clash auto race at Daytona International Speedway Sunday, Feb. 10, 2019, in Daytona Beach, Fla. (AP Photo/Phelan M. Ebenhack)