2025 Cup – Round of 16 2025 Cup – Round of 16 DateEventTime/ResultsVenue 2025-09-03 20:00:42September 3, 2025 Southern 500 20:00:428:00 PMDarlington Raceway2025-09-10 20:15:29September 10, 2025 Enjoy Illinois 250 20:15:298:15 PMGateway Motorsports Park2025-09-17 20:00:40September 17, 2025 Bristol Night Race 20:00:408:00 PMBristol Motor Speedway