Relay ultramarathons in Florida, United States

Flat 1.25-mile paved loop on a former military base with asphalt, concrete, a brief gravel section, and shady pine trees

12-hour loop around Lake Hollingsworth on paved walkways, 2.84-mile laps, solo or relay, lakeside views, hot food, and a capped field

One-mile campus loops every 30 minutes for 24 hours, passing college landmarks and returning to the baseball field for rest and recovery between laps.

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

Flat, point-to-point road course along Florida’s S.R. A1A, with Atlantic coastline views from Jacksonville Beach to the Ponce Inlet Lighthouse.

Fast, approachable multi-lap course with singletrack, doubletrack, and dirt road; spectator-friendly loops and a clear path to 50K.

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

Repeated 5-mile loops around Lake Wailes on grass and asphalt, with a central village hub, frequent support, and a spectator-friendly format.

Looped course with aid station every 1.24 miles and option for personal supplies at the trail's edge

24-hour endurance challenge at GORUCK HQ in Jacksonville Beach with limited entry and a focus on supporting veteran programs

Multi-day ultra event at Clay County Regional Sports Complex with ample self-crewing space, flat venue terrain, and festive community atmosphere

Point-to-point ultramarathon along Florida’s Space and Treasure Coasts, with ocean views, historic sites, and passage through beach towns

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

Scenic out-and-back relay on ATV-style trails with team strategy, wildlife sightings, and full support within a privately managed Molino property

Backyard-style ultramarathon featuring a 2.083-mile loop every 30 minutes at Vista View Park, with up to 100 miles over 24 hours

Paved island-to-island route along turquoise waters and palm-lined coastlines, finishing in Key West amid sub-tropical scenery and historic landmarks

Urban 50-mile team ultramarathon across Miami, linking historic streets, waterfront paths and sidewalks through Wynwood, Miami Beach, Key Biscayne and Brickell