50K relay ultramarathons in Florida, United States

Hard, compact trails through mangrove wetlands on South Hutchinson Island, with Indian River Lagoon views and diverse native wildlife.

7.75-mile loop with hard-packed trails, challenging technical sections with oak tree roots, and 90% shaded canopy coverage

Coastal route from Big Lagoon State Park to Fort Morgan, with soft sand, pavement, rolling bridges, exposed causeways, and emerald-water views.

Scenic single-track course with 2,345 feet of elevation gain; the toughest 50k in Florida, limited to 125 participants

Well-groomed cross country course featuring portions used for NCAA D2 Regionals, offering 10k, 30k, 50k, and team relay options