With four races remaining in the NASCAR Cup Series regular season, Iowa Speedway will kick off the 2025 NASCAR on NBC schedule. Ryan Blaney is the defending winner of Sunday’s Cup race (Countdown to Green begins at 3 p.m. ET on USA Network).

Last year, NASCAR announced that it would hold a Cup Series race at Iowa Speedway after the sanctioning body decided to remodel Auto Club Speedway in Fontana, California, and needed a track to fill a hole in the schedule. Since then, Iowa Speedway has become one of NASCAR's favorite tracks.

With just four races remaining in the regular season, Iowa Speedway takes center stage in a NASCAR Cup Series campaign marked by increasingly tense battles and shifting fortunes. The top four drivers chasing a hotly contested Regular Season Championship -- the Hendrick Motorsports trio of Chase Elliott,