12hr ultramarathons in United States (South)

Scenic Kennesaw Mountain course passing historic sites, wooded trails, gravel, and asphalt, featuring sunrise and sunset views along an 8-mile out-and-back loop

Paved 1-mile loop with gentle elevation, direction changes, and a fully stocked aid station at the start/finish area

Looped nighttime miles on runnable single-track dirt trails through cedar and hardwood forests along the Duck River, glowing with reflective markers

Flat, open field trail designed for speed, minimal obstacles, challenging heat, personal fueling spots, and a communal post-race food spread

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

Overnight looping relay and ultra at Kroger Field, with a paved course and a grassy, trail-like section for added variety.

Sugar sand dunes of coastal southeast Florida, mini-game style challenges, 24-hour and half marathon options, peak summer heat, varied difficulty levels

Daytime 12-hour, 6-hour, and 3-hour individual runs plus team relays, now part of the RUTS running series

12-hour looped course on county roads with asphalt and gravel, mostly flat terrain, partial shade, and open traffic

One-mile paved loop on scenic university campus, spacious accessible lanes, grassy tent areas, abundant aid stations, and gymnasium facilities

Flat, shaded one-mile loops on palm- and oak-lined trails between river and ocean, nontechnical terrain showcasing old Florida hammock.

Technical sections on High Rocks Spur and Boundary Trail loop, featuring challenging and varied terrain through Crystal Springs Recreation Area

Gentle dirt loop through tranquil woods and along the historic Murderkill River, featuring sandy paths, single-track sections, and a footbridge crossing

Flat, 1.5-mile unpaved loop through tree-lined trails and lakeside scenery at Oak Grove Lake Park, featuring wildlife and a single aid station

Rugged Tennessee hills, relentless dirt loops, 90+ degree heat, Barkley-inspired quirks, and aid station party zones supporting animal rescue

Loop trails at Fort Loudoun State Historic Park, with smooth runnable footing and scenic views of Tellico Lake and rolling hills.

3.7-mile loop on Warhill Nature Trail with crushed gravel, rolling hills, evening-to-morning hours, night running, and mandatory volunteer hour

Scenic loop through shaded woodland, rocky climbs, creekside trail and waterfalls, with technical footing and runnable stretches.

Rocky, rooty 4.63-mile trail loop at Lake Z with steep climbs, water crossings, and 303 feet of climb per loop in Dahlonega

Scenic 3.2-mile trail loop with 380 feet of elevation gain on Gateway trails, flexible solo or team formats, 3 to 12-hour timed options in Old Fort, NC