NASCAR's Xfinity Series race at Darlington Raceway has started after a rain delay of 4½ hours.

Noah Gragson is on the pole for Thursday's race, the first for the series since the season was suspended because of the coronavirus pandemic. It was originally set for Tuesday night, but heavy storms washed out that plan. More rain at the old, country track also delayed Thursday’s start.

NASCAR's Cup Series had a successful return at Darlington with two races this week.

Noah Gragson (9) leads Ross Chastain (10) during the NASCAR Xfinity series auto race Thursday, May 21, 2020, in Darlington, S.C. (AP PhotoBrynn Anderson)

Noah Gragson (9) leads Ross Chastain (10) during the NASCAR Xfinity series auto race Thursday, May 21, 2020, in Darlington, S.C. (AP PhotoBrynn Anderson)

Kevin Harvick earned his 50th Cup win when he took Sunday's race, the first for the series in 10 weeks. Denny Hamlin won a rain-shortened race Wednesday night, the first time the series ran on that day since 1984.

Ross Chastain (10) and Ryan Sieg (39) drive during the NASCAR Xfinity series auto race Thursday, May 21, 2020, in Darlington, S.C. (AP PhotoBrynn Anderson)

Ross Chastain (10) and Ryan Sieg (39) drive during the NASCAR Xfinity series auto race Thursday, May 21, 2020, in Darlington, S.C. (AP PhotoBrynn Anderson)