Trail Running Calendar United States 2025-2026

Run the Triple Dam 10K in Perkinsville VT on August 23, 2026 for a scenic road and trail loop with a fun calf deep river crossing. Open to runners and walkers, proceeds support Springfield High School cross country.

Hit the fields at Waters Farm on Sunday, August 23, 2026 for the Old Goat Track Club XC Classic, a fast and friendly 5K cross country through scenic farm trails. A USATF New England Grand Prix stop with race day registration available.

Run 50 km across the surreal Black Rock Desert at Burning Man, where dust, wind and heat create an unforgettable ultramarathon. Entry is free with a Burning Man ticket and registration, blending endurance with the festival spirit.

Run the Goats In The Dark 5k in Helena, MT on August 28, a scenic night trail across Mount Helena singletrack with a spirited finish back to the start. Headlamps required as the route passes through sunset into full dark.

Tackle rugged single track on the exposed Switchgrass Mountain Bike Trail at Wilson State Park, with lake views and serious climbs. Choose a roughly 13 mile half loop or the full 50k combining both loops, with stocked aid stations and race..

Experience a spirited trail running weekend with 50 mile and 50K ultras plus marathon and half marathon options, famed for huge finisher medals and a lively post race party. Registration for 2026 is closed but a wait list will open soon.

Choose from 50K, 25K, 10K or 5K on rolling singletrack and multiuse trails with sweeping views at Philip S. Miller Park in Castle Rock, Colorado. Portions of proceeds support Castle Rock open space and local charities.

Zero Dark Ultra invites you to move through darkness in Spokane with self supported run or ruck options from a family 10K up to 24 hour and 100 mile tests. Continuous trail loops and lap counting create a simple, primal endurance experience..

Experience the Yeti Snakebite in Atlanta, a timed trail run on a scenic repeating 6 mile loop with river crossings and summer hills. Choose distances up to 50 miles or 50 km and tackle as many laps as you can within an 8.88 hour window.

Backcountry Rise (August 29, 2026) Backcountry Rise is a trail race held within the Mount St. Helens National Volcanic Monument. The event uses the Mount St. Helens Science & Learning Center above Coldwater Lake as its base camp. Course..

Run the Baker Trail UltraChallenge, a 50 mile ultramarathon on August 29, 2026 across the northern Baker Trail. Go solo or team up, tackle rugged single track and country roads, and earn one piece toward a three piece series medal.

The Sunflower Trail Run will take place in Buhler on Saturday 29 August 2026. You can run between 5 and 5 kilometers.

Explore rugged single track through old growth forest at the Salt Springs Trail Races on August 29, 2026 in Montrose PA. Choose 5K, 10K or a demanding 50K five loop course with steep climbs and technical descents while supporting the park.

Run the Black Bear Trail Races in Waterville Valley NH with options from a family friendly 1 mile fun run to a rugged 50K across White Mountain peaks. Scenic singletrack, big climbs and aid stations offer a memorable mountain challenge.

Tackle the Cirque Series at Grand Targhee: a rugged 7.1 mile trail with 2,212 ft of climbing through alpine ridges and technical singletrack. Limited to 500 runners, expect stunning views, big climbs, and finish day swag.

Leaky Hourglass is a Last Man Standing in Half Way, Missouri featuring 4.167 mile out and back laps on a rolling rural course. Cutoffs shrink each lap until one runner remains, with onsite aid, camping and free pro photos.

Run the Midwest States 100 in Westboro, Wisconsin on August 29 to 30, 2026 along the Ice Age National Scenic Trail, with 100 mile, 100K and 50k options. Small field and camping add on make for a rugged grassroots experience.

Hit the forest trails at Dirt Farm Brewing on August 29, 2026 for the Inferno 5k and 10k. Tackle a scenic, technical loop, earn a finisher medal and a Dri FIT shirt, and toast with a glass of Dirt Farm beer. Virtual option available.

Take on a 30K open water swim across Pittsburgh's three rivers, starting at Point State Park with full boat and kayak support. This annual late August event raises funds to help families cover infant cardiothoracic surgery costs.

Labor Day Slay at Queeny Park in St Louis offers 5K, 10K, half marathon and a 10K ruck in late August 2026 on a fully marked loop course with chip timing. Celebrate with aid stations, a finisher medal and free action photos.