Legendary fixed-time desert ultra on a 500m gravel loop at historic Nardini Manor
Other trail races within 90 miles
A flat and fast fixed-time ultra on a USATF-certified 500-meter crushed gravel loop at historic Nardini Manor in Buckeye, Arizona. Runners log as many laps as possible in 24 hours on this fully exposed desert track, battling daytime temperatures well over 100°F before cooler—but still sweltering—overnight stretches in the 80s. With crew access directly on course, a fully-stocked aid station every loop, and the option to set up a personal staging area trackside, runners can focus entirely on accumulating miles. Course records are held by ultrarunning legend Yiannis Kouros (149.13 miles, 2005) and Stephanie Ehret (130.49 miles, 2003).
Some ultra experience recommended
Buckeye, AZ, United StatesMay 30, 2026
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Expect extreme desert heat with daytime highs well over 100°F and overnight lows in the 80s. The course is fully exposed with no shade.
Average daytime temperatures exceed 100°F. Ice and water are provided on course, but sun protection, heat acclimation, and a reusable cup (cupless race) are essential.
No required gear specified
No recommended gear specified
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