The NASCAR Cup Series will return to New Hampshire Motor Speedway on Sunday, Sept. 21, 2025 at 2 p.m. to kick off the Round of 12 in the NASCAR Playoffs! New England's only NASCAR Cup Series weekend, Sept. 19-21, 2025, will also feature the NASCAR CRAFTSMAN Truck Series & Whelen Modified Tour on Doubleheader Saturday plus SIG SAUER Academy Dirt Duels at The Flat Track on Friday!