Trail Running Calendar United States 2026-2027

A summer trail race in Haines, Alaska covering 11.5 mile through rainforest and along an alpine ridgeline. Shuttle service to the start is available and race proceeds support the Haines Glacier Bears school cross country programs.

The Badwater 135 is a 135-mile ultramarathon from Death Valley to the slopes of Mount Whitney. Starting at the continent's lowest point, runners face extreme elevation changes across three mountain ranges. It's an invitational race with a s..

A single 200 mile loop in Summit County Colorado at sustained high altitude, capped at 75 runners, with about 40,000 feet of climbing, multiple aid and sleep stations, live GPS tracking, and a multiyear deferral policy.

A weekly cross country series offering thirteen 5K races on Tuesday nights from April to July. The event takes place at Central Park in Parsippany and is open to all ages and abilities. Participants can register for the full series or pay f..

Join this weekly trail running series at the Catamount Outdoor Family Center featuring distances from 5k to 10k. There are special categories for children and water stations available on site for all runners.

The Urban Trail Series features three summer Wednesday evening 5K run/walks at Bloomer Park. Series participants receive finisher medals, chip timing, and a post-race cookout with awards.

A rolling five mile trail race at Spring Lake Park in Hastings, Minnesota, run as two figure eight loops over prairie and wooded single and double track with about 310 ft elevation gain. Field limit 425 and registration opens Jan 1, 2026.

Experience an evening trail run through the scenic woods behind Riverside High School. Support the local cross country team while navigating the same well marked 5k course used by competitive athletes.

Part of an eight-week trail series in Flower Mound, this chip timed event features marked singletrack 5K and 10K races with weekly podium awards, rain-date rescheduling, and no-refund registration with transfers allowed.

A three-day stage race around Lake Sunapee covering 75 miles with ~15,500 ft gain, plus a 50k option. The format includes overnight camping, organizer gear transport, stocked aid stations, mandatory safety gear, and a $30,000 prize purse.

Lean Horse Ultra is a multi-distance trail running event on the George S. Mickelson Trail in the Black Hills, held July 31 to August 1, 2026, with 100 mile, relay, 50, 30, and 20 mile options and a CrossFit edition.

Experience an epic 200 mile point to point team relay from Fort Collins to Steamboat Springs. Run through the heart of the Rocky Mountains and over two scenic mountain passes in this ultimate Colorado road race.

Join the SoCal Summer evening 6K or 12K at Lower Arroyo Park in Pasadena on July 31 2026 and celebrate after with tacos and drinks. Scenic park routes and friendly vibes make this a perfect summer night run.

Experience the beauty of Bogus Basin at the Boise Front Trail Festival. Choose between a steep hill climb or scenic trail races while supporting local trail conservation in the Boise Foothills.

A night trail event at Land Heritage Institute on August 1, 2026 offering 5K, 17K, 35K, 50K and a 17K ruck option; headlamps and minimum water carry are required and aid stations provide food and hydration.

A trail event at Phipps Park west of Billings with 2, 4, 6, and 8 mile courses plus a virtual option, one aid station, no-paper-cup policy, awards, a $600 cash giveaway, and donations to local trail maintenance.

Run S'more 4-Miler is a July 31, 2026 running event on the Iron Horse Trail in Alliance, Ohio, featuring a 4-mile out and back course with both in person and virtual options; the race starts and finishes at First Christian Church.

Tough Mudder Indiana on August 1, 2026 at CERAland Park in Columbus offers 15K and 5K obstacle courses across woodland and farmland, spectator Mudder Village, group packages, and volunteer options.

Experience an obstacle course race at the Tryon International Equestrian Center featuring horse trails and red clay hills. Choose from 5K and 10K distances or children’s races in a world class sporting venue.

Waldo 100K is a 100K loop ultramarathon near Oakridge, Oregon that starts at Willamette Pass Ski Area and climbs multiple mountains over remote single track trails with views of Waldo Lake. The event participates in a Trail to Zero carbon o..