Trail Running Calendar United States 2026-2027

Tough Mudder Los Angeles on March 20, 2027 at Lake Elsinore Raceway blends winding single-track and arid ridges with waterlogged mud obstacles. Event formats include 15+ km and 5 to 8 km courses, an Infinity multi-lap option, and spectator..

Annual March trail races at the Lyndon B. Johnson National Grasslands near Decatur, Texas, offering distances from 15K up to 100 mile on rolling, mixed pine and oak terrain where runners share trails with horses and livestock.

Multiple trail distances run through Redwood Regional Park on March 20, 2027 at Chabot Space & Science Center. Routes use East Ridge, West Ridge, Stream and Bridle trails and distances were measured with a Rolatape surveyor's wheel.

A rugged 5K through maple woods with maple-based snack stops and a Last Person Standing format where runners repeat a roughly 1000-foot ascent 5K lap until one remains, followed by wood-fired pizza, drinks and music at Ramp Camp.

A road race in Moab, Utah held alongside the Colorado River and Arches National Park. Offers a half marathon and a 5 mile race with six aid stations, medical support, shuttle access, and post race medals and refreshments.

A flat 14.3 mile loop through pine flatwoods, prairies, swamps and hammocks in Hungryland Slough Natural Area offers two timed options: a six hour race and a 33 hour event where seven finished loops equal a 100 mile finish.

A 100 mile trail race in Flovilla, GA run as eight laps of a 12.5 mile loop on gently rolling single track with two aid stations and crew access. It is a Western States qualifying race with a raffle for a 2028 entry among 2027 finishers.

A backyard ultra variation in Rome, GA on March 20, 2027 where each 4 mile loop must be completed one minute faster than the last. One aid station, on site camping, and limited event merchandise are available.

A community focused endurance event at Sweetwater Creek State Park near Lithia Springs, Georgia. Options include 3, 7, and 11 hour loop races with chip timing and a 7 Eleven style aid station.

Trail running event in Valencia, California on March 20, 2027, offering 10K, half marathon and 50K ultra courses with significant climbing, single-track sections, aid stations and chip timing.

A half marathon and 10K on a rugged high-desert course near Joshua Tree National Park on March 20, 2027. The event benefits the John Wayne Cancer Foundation, offers chip timing, aid stations, and finisher awards.

Tough Mudder Los Angeles at Lake Elsinore Raceway on March 20, 2027 offers multiple course options including a 15K with 20 plus obstacles, a shorter 5 to 8 kilometer course, Infinity laps, spectator access, and group packages.

A point to point ultra on the Outer Banks offering 100 mile, 100 kilometer, relay and virtual options. Runners face fully paved coastal roads, variable weather, strong winds and a pirate themed race culture.

A multi-distance trail event in Owen-Putnam State Forest with mostly single track terrain and a 14 mile lollipop loop. The race is cupless so runners must carry 20 oz of water, and all finishers receive medals.

An annual trail event at Soboba featuring the first NATRO Marathon Championship plus a half marathon, 5k and kids 3k for ages 12 and under. Native and Open divisions, finisher awards, and proceeds benefit the Noli Indian School scholarship..

Held on the Amerind Museum grounds in Texas Canyon, this annual trail event offers 5K and 10K courses through desert terrain and rock formations. Awards include medals and Native American art and registration includes museum admission.

A dog-friendly trail event at Granite Beach, Folsom Lake, offering 10K, 5K and a one-mile Mighty Mile. Finishers receive medals and bandanas, awards are given by dog-size divisions, and volunteers can earn a $50 voucher.

The Bel Monte Endurance Races will take place in Stuarts Draft on Saturday 20 March 2027. You can run between 25 and 50 miles.

A six hour timed trail event at Sesquicentennial State Park in Columbia SC where athletes complete as many 3.5 mile loops as they can. The course mixes single and double track with a sandy climb and about 270 feet of vertical gain.

A multi-day trail ultramarathon in Sweetwater Creek State Park near Atlanta offering looped courses of 200 and 100 miles, on-course aid, a sleep station, hot food service, and professional chip timing.