Backyard ultramarathons in United States (South)

Rugged Concord woods course with diverse, demanding terrain and intense conditions

Looped 5k trail course with intense heat, Last Man Standing and 50K ultramarathon options, capped at 100 runners

4.167-mile loop through Oak Mountain State Park with 500 feet of elevation gain per lap, backyard format, limited aid, capped at 100 participants

Flat looped course with variable time limits by age, featuring veteran ultrarunners and a strategic focus on endurance and pacing

Short, moderately hilly loops on gravel roads, trails, and rolling fields at Blackberry Ridge Farm, last runner standing format near Charlotte, NC

Trail ultramarathon festival through the untamed wilderness of Seven Bends State Park

Night trail loops under the brightest full moon, marked courses of 3.3 or 4.17 miles, 8-hour lap challenge and 12-hour Last Runner Standing format

Hilly jeep road loops on 1North Adventure Trails, hourly 3.5-mile circuits, night running emphasis, flexible pacing, festive atmosphere, pancake breakfast

Birthplace of the Backyard Ultra featuring the iconic 4.1667-mile loop, historic venue for world record performances and legendary endurance showdowns

Out-and-back gravel trails with moderate elevation changes, unpredictable weather, and a welcoming course design

Backyard ultra at Wade Mountain Preserve: road opening, singletrack loops, then overnight road-only laps in classic last-runner-standing format.

Texas backyard ultra series: 4.167-mile hourly loops across rugged Hill Country trails, heat-exposed terrain, and Lost Pines sandy loam.

Rural Kentucky park and fairgrounds loops with small-town scenery and last runner standing format

Global elite backyard ultrarunners competing in national teams for the World Championships, featuring top qualifiers from silver ticket events

Crushed gravel loops with minimal elevation in Stephen F. Austin State Park, backyard format with personal aid stations and wide open spaces near Houston.

Scenic 1-mile trail loops around Aberdeen Lake, multiple timed categories including endurance and last man standing, aid stations and personal support allowed

Looped 4-mile course through a scenic park of shaded trails and open paths, surrounded by towering pines in Lumberton, Texas

Backyard ultra format focused on endurance over speed, with a gritty last-person-standing spirit and an outlast-the-field dynamic.

Mostly shaded, flat double-track on a compact double-lollipop course with minimal elevation and frequent returns to the central hub.