25 Hours at Ozarks

The NASA 25 Hours at Ozarks International Raceway

The NASA 25 Hours at Ozarks International Raceway is happening Nov. 13-16 and will be the ultimate challenge in endurance grassroots racing.

NASA 25 Hour | National Auto Sport Association

Ozarks International Raceway in Gravois Mills, Mo., will be the site of the event this year, which will take place November 13-16, 2025. Resources. 25 Hour ...

25 Hours of Ozarks (formerly 25 hours of Thunderhill)

Ozarks International Raceway. Thu, Nov 13 - Sun, Nov 16, 2025. More info. Ozarks International Raceway. Gravois Mills, MO. About eventAbout event; VenueVenue ...