6hr ultramarathons in Texas, United States

Night trail loops on undulating 3.2-mile course at Cedar Ridge Preserve, featuring wooded terrain, varying elevation, and multi-hour endurance format

Rugged, heat-defined 24-hour and 48-hour ultra with smart pacing, cooler nighttime hours, and a laid-back, communal atmosphere

Nighttime trail race on a 10km loop in Dinosaur Valley State Park, 670 feet of elevation gain, timed 4, 6, or 8-hour options, featuring the Claw Challenge

Steep 20% grade ascent on Monkey Butt Hill, 100-foot climb in a tenth of a mile, Cross Timbers Hiking Trail, limited to 80 participants

Flat 2-mile loops on Trinity River trails, mostly pavement with optional grass, centered on close-up crowd energy at Martin House Brewery.

Multi-loop 5K trail challenge over varied terrain, with hourly starts and cumulative timing, emphasizing pacing, discipline, and mental endurance

Constant elevation changes on rugged trails at Eagle Mountain Park, 3.3-mile loops over timed durations, limited entries, bib punch each lap

24-hour and 6-hour trail races on Erwin Park trails, inaugural event at the Pecan Grove Pavilion in McKinney, Texas

Looped ultrarunning challenge in San Angelo State Park with flexible 2 to 24-hour durations and scenic natural surroundings

Certified paved loop on the shore of Lake Grapevine, with lake views, changing direction, and a spectator-friendly timed ultra format.

Out-and-back on Lake Bastrop’s North-South Trailway: packed dirt singletrack, sand and rock through Lost Pines, bridges and gently rolling terrain.

Timed 6- or 12-hour format on a 5K lap loop, with hourly cutoffs and progressive elimination

Technical 4-mile loop course through Palo Duro Canyon State Park, rugged terrain and self-supported cupless format near Mac Dick Pavilion

Gentle 2-mile trail loop in Bremond, TX with flexible distance options up to 12 hours, featuring distance milestones and a supportive atmosphere

Hilly dirt trails, creek crossings, and single-track loops with elevation changes through piney woods on a private ranch in Northeast Texas

Steep 20% grade climb near Juniper Point West on Cross Timbers Hiking Trail, with frequent crewing and lakeside spectator access

Trail loops at Spider Mountain Bike Park by Lake Buchanan, featuring climbing and downhill segments, night running, and Texas Eagle Quad Chairlift access

One-mile well-lit loop course through Redbud Park with night running on safe, consistent terrain and access to a single aid station