United States
Dec
27
Saturday
Jupiter Ridge Sand Spur
The Jupiter Ridge Sand Spur is a unique ultramarathon held in Jupiter, Florida, featuring challenging courses on ancient sand dunes within the protected Jupiter Ridge Natural Area. The 2025 event offers multiple distances including a 50K, half marathon, and the special "Lunacy" series combining day and night runs: a 30k night run, a 50k (half marathon plus night run), and a 50-mile race (50k plus night run). Runners tackle loops over rugged terrain with up to 3,000 feet of elevation gain on rare Florida scrub habitat.
The race is capped at 80 participants to protect the environment, with full support, chip timing, and distinctive awards celebrating the tough, scenic course. Visit the organization's website for the most recent information.
Always double-check with the organizer's website – things can change, and we might have sprinted past a few details!
50 km
Lunacy 50k (half Marathon + 30k Night Run)
50 km
Lunacy 50 Miler (50k + 30k Night Run)
50 km
50k
30 km
Lunacy 30k Night Run
13 mi
1/2 Marathon
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