This just released---
Dear 25 Hour Participants,
There has been much assessment of the new addition to Thunderhill Raceway, making it a five-mile configuration. I have concluded that including the new section, while really fun to drive, would break with a tradition I was proud to create. So, this year’s 25 Hours of Thunderhill Raceway, presented by Hawk Performance Products will run on the tradition three-mile configuration.
Jerry Kunzman
Western States Championships