Florida’s Toughest Ultramarathon Returns for Its 3rd Edition in 2025!
Get ready for the ultimate endurance challenge as the third installment of Florida’s most grueling ultramarathon takes place in Jupiter, Florida, on Saturday and Sunday, July 26–27, 2025.
This noon-to-noon, 24-hour, 80-mile test of grit unfolds at the breathtaking—and punishing—Jupiter Ridge Natural Area, where runners will conquer ancient sand dunes over 2 million years old.
Participants must complete one 3.3-mile, trident-shaped loop every hour for 24 consecutive hours across the shimmering white sugar sands of Jupiter Ridge—right in the heart of the Florida coastal scrub, an environment as brutal as any desert, but with suffocating humidity.
This race is not for beginners.
Expect daytime highs reaching 95°F, a heat index soaring over 110°F, and sand temperatures pushing 130–140°F. Nights offer little relief with humidity levels nearing 90%.
Crossing the finish line isn’t just a victory—it’s survival. Finishers will earn one of the hardest-won buckles in Florida and beyond.
Do you have what it takes?