Registration for the 2019 NASA 25 Hours of Thunderhill Presented by Hawk Performance will open Monday, September 9th, 2019 at 9 am Pacific Standard Time. Please visit for the latest event information and registration link. Any teams interested in taking part in the longest closed-course endurance race in North America will be able stake their claim on grid at that time. Interested teams also are encouraged to read the 2019 Rules(Under Consideration) for the 2019 event and post any and all feedback on the #DRIENASA Community Forums.

Best of luck to everyone. We look forward to seeing all of you at Thunderhill!



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