Trail Running Calendar United States 2026-2027

A forested single track loop in the Mark Twain National Forest offers a Marathon (one loop) and a near 53 mile 50 mile option over hilly terrain with stream crossings, cupless aid stations, and on course support.

Timed ultramarathon at Richfield Heritage Preserve with a 2.92 mile loop and 225 feet of gain. Multiple distances, camping, overnight aid and live tracking.

Two days of obstacle-course racing at Seven Oaks Recreation in Boone, Iowa offering 5K, 6-mile Full Gladiator and junior/parent 5K heats. Sunday includes kid pricing, an exclusive wristband and group drink rewards.

A race in El Sobrante on May 16, 2026 offering Half Marathon, 10K and 5K distances plus a remote runner option. Tiered registration fees apply and the event supports the East Bay Regional Parks Campership Program.

A 57.5 mile point-to-point trail race from Blairsville to Blue Ridge, GA, featuring technical single-track, 10 aid stations and roughly 17,000 feet of ascent and descent through the Chattahoochee National Forest.

A trail event in Waxhaw NC offering a 50K (three laps of a 10+ mile loop) and a 10 mile race, with a single main aid station, cupless policy, finisher medal, optional shirt, and set time limits for each distance.

A timed endurance trail event near Willow Springs on a 4 mile loop with single and double track, rolling hills, a signature aid station offering snacks and drinks, and a mandatory reusable cup policy.

Trail running in Soaring Eagle Regional Park near Sammamish Washington with distances from a Kids Race to a half marathon. Routes start on the Pipeline Trail and follow mostly flat, well graded forest tracks with rooty tread.

A two-hour checkpoint run at Mt. Tabor Park where participants get a map, pick their own routes, and try to collect as many checkpoints as possible. Solo and team entries are available with prizes for top finishers.

The Don's Backyard Bbq 20k Trail Run Challenge will take place in Winder on Saturday 16 May 2026. You can run 20 kilometers.

Wild Rose Half Marathon & 5K in Roseville on May 16, 2026 offers a half marathon on the Pleasant Grove Bike Path and a 5K through William Hughes Park. Paved courses include multiple aid stations and post-race swag including a technical shir..

A trail race day from Buffalo Lodge Bicycle Resort featuring five distances centered on Rampart Reservoir and Rampart Range Road. Courses include a 55 mile loop, a point to point 60K, a 50K out and back, plus 24K and 15K options with aid st..

A 13th annual community event in Trussville, Alabama featuring an 8K trail race and an 8K ruck run/walk (20 lb minimum), with a $30 registration fee and proceeds benefiting the Troy Ellis Foundation.

Run the Forgotten Forest 9-Hour Ultra on a challenging 2.2-mile loop trail in Roosevelt Forest. This event is a perfect training ground for longer ultras, welcoming runners and hikers of all paces. With a small field of just 50 participants..

A May trail running event at Possum Kingdom Lake with varied terrain, multiple looped distances from 4 miles to 69 miles, cupless aid stations, drop bags, and paced options for the longest distances.

Die to Run Ultra is the backyard ultra where a dice roll dictates your fate each hour. Runners must complete a 1 to 6 mile loop in 60 minutes to survive, with the unpredictable distance creating a unique mental challenge. The last runner st..

Three trail races at Island Lake Recreation Area near Brighton, MI include two night events and an overnight 100K that uses two loops of the 50K course. The inaugural event has a 450 runner cap and a total prize purse of $9,750.

Run the Sky Pilots Ouray Backyard Ultra in Fellin Park, completing a 4.167 mile loop each hour until one runner outlasts the field. Enjoy riverside trails, mountain views near 7,700 feet and shared aid.

Experience a unique night time trail race at Texas only lift served bike park in Burnet. Choose from various timed challenges or fixed distances including rucking and youth events under the stars.

Bluewater Canyon Trail Race is a 5 mile trail event near Bluewater, New Mexico, featuring a steep climb to canyon overlooks, three aid stations, awards for top finishers and youth, and proceeds supporting the Cibola Trail Alliance.