Trail Running Calendar United States 2026-2027

Explore the best trail runs in the United States for 2026-2027! Our updated list features 4124 exciting races across the country. Find your next race in the United States below and join the running community at these great events!

A 3 mile obstacle run at Phil Moore Park on August 29, 2026 raising funds for child abuse prevention. Individual and team entries are offered plus a free Kids Mud Bath for children under nine.

A point-to-point 50-mile ultramarathon on the Baker Trail Northern section near Brookville, PA, featuring 6,200 feet of climbing, individual and relay options, a three-piece finisher medal series, and free training runs before the race.

A Last Man Standing event near Half Way, Missouri where each lap is a 4.167 mile out and back and the allowed lap time drops by one minute each circuit. Rural highway course with staffed and grab and go aid stations and on site camping.

An 8.88 hour timed trail event in August in Atlanta with multi-loop laps over river and through woods. The race has a no DNF, no cutoff, no crew policy and a flat $88.80 entry fee.

Trail races on August 29 and 30, 2026 offering 50 Mile, 50K, 26.2 Mile and 13.1 Mile distances. Registration is closed and a wait list will be available; organizers state the race includes notably large finisher medals.

Trail races at Grand Targhee on August 29, 2026 cover 7.1 miles with 2,212 feet of vertical gain across Sport, Expert, and Pro divisions plus a volunteer category. Per race prizes and season points are awarded and the field is capped at 500..

Trail races at Salt Springs Park on August 29, 2026, offering 5K, 10K and a 50K five-loop course through old-growth forest with steep climbs, technical single track, aid stations for the 50K, chip timing, and volunteer-supported park benefi..

The Labor Day Slay at Queeny Park on August 29, 2026 features 5K, 10K, 10K Ruck and a half marathon on marked trails with chip timing, lap aid stations, finishers medals and age-group awards.

Rock Hawk Trail Races on August 29, 2026 in Castle Rock, Colorado offers 50K, 25K, 10K and 5K on rolling singletrack with cup-free aid stations, chip timing, finish-line photos, drop bags, and live split tracking.

Trail races in St. Croix Falls offering Marathon, Half Marathon and 10K routes across single track, gravel and paved surfaces. Online entry is limited to 150 runners and closes August 25, 2026.

A trail race weekend in Waterville Valley NH with a 50K ultra, 23K, 4 mile and 1 mile family fun run. Courses use single and double track, have cup less aid stations, and include finisher awards and podium prizes.

A trail event at Kansas Maze in Buhler, Kansas that sends runners through over 20 acres of sunflowers. Offers 5K and 1 mile options on August 29, 2026 with finisher shirts, medals, and on site festival perks.

The Muddy Dash - Maryland will take place in Wicomico Shores on Saturday 29 August 2026.

Trail races at Huddart Park, King's Mountain and Bear Gulch offer measured distances from a 50 yard kids dash to a 50K, with fees listed per distance and registration opening November 11, 2025.

A mountain trail race in Steamboat Springs on August 29, 2026 offering 50k, 16 mile and 5 mile courses from Torian Plum Lawn. The event is cupless, donates proceeds to trail maintenance, and includes aid stations on the longer distances.

TANRI Lake Race at YMCA Sequoia Lake in 2026 features relay teams, a single-loop 10K and a 10-hour individual lap event. Courses use 5-mile loops, offer prize payouts, and include a Tanri hat plus Saturday dinner with registration.

Trail races at Scott County Park in Long Grove, IA featuring 50K, 10 mile and 5 mile options on a roughly 10 mile loop with on-course aid stations and drop-bag and pacer policies for the 50K.

A community run on Table Rock Trail near Boise that follows an approximately 3.8 mile round trip course with 900 feet of climb. Proceeds support scholarships for Idaho students and the LESS Society mission.

Trail runs and walks on August 29 2026 at Phillips Creek State Forest offering 5K, 10K, and a newly added 25K over varied forest trails with creek crossings, mud, and rolling terrain.

Trail races at the Lewis and Clark Trailhead near St Charles include a 13.1 miles half plus separate 8 miles and 5 miles loops. Aid stations offer water and Tailwind and each runner receives a reusable cup at packet pickup.

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