The Xfinity Series ends its regular season today at Las Vegas Motor Speedway while Cup teams make final preparations for the postseason opener on Sunday.
Here’s the day’s schedule.
(All times are Eastern)
Saturday, Sept. 15
10:30 a.m. - Xfinity garage opens
11:30 a.m. - 7 p.m. - Cup garage open
1 - 1:50 p.m. - Cup practice (NBCSN)
2:10 p.m. - Xfinity qualifying; multi-car/three rounds (NBCSN)
3:15 p.m. - Xfinity driver-crew chief meeting
3:30 - 4:20 p.m. - Final Cup practice (NBCSN)
4:30 p.m. - Xfinity driver introductions
5 p.m. - DC Solar 300; 200 laps/300 miles (NBCSN, PRN, SiriusXM NASCAR Radio)