12 Hours of Thunderhill

DriveTrackTime on Friday, September 18, 2026 - Saturday, September 19, 2026 at Thunderhill Raceway Park, Willows, CA - 12 straight hours of racing guarantees you will get plenty of windshield time. Five time-bracketed classes. Daylight only. This means no expensive lighting required. Five-minute timed fuel stops (exce...