The regular cup season ends on Sunday evening in Darlington.

The regular season champion is determined and the playoff field is set.

Bubba Wallace enters Sunday’s Southern 500 in Darlington 21 points shy of the play-off cutoff.

Tyler Reddick leads the points tally for the event, 17 points ahead of Kyle Larson and 18 points ahead of Chase Elliott.

Martin Truex Jr., Ty Gibbs and Chris Buescher occupy the final three playoff spots.

Details for Sunday’s Cup race at Darlington Raceway

(All times Eastern)

START: The command to start the engines is given at 17:55 hrs… The green flag is expected to fly at 18:05 hrs

BEFORE THE RACE: Garage opens at 3:00 p.m. … Driver introductions are at 5:15 p.m. … The invocation is given by Pastor Stacey Severance, Good Shepherd Presbyterian Church in Florence, South Carolina, at 5:47 p.m. … The national anthem is sung by Carolina Sound, University of Mount Olive, at 5:48 p.m. … Dale Jarrett takes Cale Yarborough’s #11 Oldsmobile for a ceremonial lap.

DISTANCE: The race consists of 367 laps (501.32 miles) of a 1.366 mile course.

STAGES: Stage 1 ends on lap 115. Stage 2 ends on lap 230.

STARTING LINEUP: Southern 500 starting grid

Television/radio: USA Network will air the race at 6 p.m. ET. Coverage begins at 5:30 p.m. on USA. … Motor Racing Network coverage begins at 5 p.m. … SiriusXM NASCAR Radio will air the MRN broadcast.

PREDICTION: The Weather Underground’s forecast Expect partly cloudy skies with a high of 32 degrees Celsius and a 15% chance of rain at the start of the Cup race.

LAST TIME: Brad Keselowski took the lead with nine laps to go after Tyler Reddick made contact with Chris Buescher who was racing for the lead in May’s race. Ty Gibbs was second. Josh Berry was third. Kyle Larson won last year’s Southern 500. Tyler Reddick was second. Chris Buescher was third.