FILE - In this Aug. 31, 2019, file photo, Ryan Blaney leads the field to the start the NASCAR Xfinity Series auto race at Darlington Raceway in Darlington, S.C. NASCAR will resume its season without fans starting May 17 at Darlington Raceway in South Carolina. As NASCAR speeds back to the race track during the coronavirus pandemic the series has a heavy responsibility to set a safety standard that doesn't slow the return of other sports. (AP Photo/Terry Renna, File)

FILE - In this Sept. 2, 2016, file photo, workers walk along the grandstands in the rain at Darlington Raceway after weather forced NASCAR to call off qualifying for the Sprint Cup and XFinity series auto races. NASCAR says it will resume its season without fans present starting May 17 at Darlington Raceway in South Carolina. (AP Photo/Terry Renna, File)

FILE - In this Aug. 6, 2016, file photo, a track marshall waves a yellow caution flag during a NASCAR Xfinity series auto race at Watkins Glen International in Watkins Glen, N.Y. As NASCAR speeds back to the race track during the coronavirus pandemic the series has a heavy responsibility to set a safety standard that doesn't slow the return of other sports. (AP Photo/Mel Evans, File)

FILE - In this Sept. 4, 2015, file photo, Aric Almirola heads for the track during a NASCAR Sprint Cup auto racing practice session at Darlington Raceway in Darlington, S.C. NASCAR will resume its season without fans starting May 17 at Darlington Raceway in South Carolina. As NASCAR speeds back to the race track during the coronavirus pandemic the series has a heavy responsibility to set a safety standard that doesn't slow the return of other sports. (AP Photo/Terry Renna, File)