Trail Running Calendar United States 2026-2027

Emerald Mountain Epic in Steamboat Springs on August 8 and 9, 2026 is a two day mountain bike and trail running weekend on scenic singletrack dirt trails. Race marathon, half or bike distances with a limited field of 500 per day.

Run fern lined single track trails through Cougar Mountain Regional Wildland Park, choosing from a speedy 5K up to a rugged 26.2 mile course. Support King County Parks and enjoy a community focused summer series with limited entries, so reg..

Run scenic, rugged trails in Cuyahoga Valley National Park with a 5 Mile or 10 Mile at Oak Hill Trail Head. Expect roots, steep climbs, a finisher's medal and swag while supporting the park as part of the Dirty Trail Series.

Run the Snowbowl 15K in Missoula on August 8, 2026, a 9.3 mile climb to Grizzly Chair followed by a flowy single track descent with sweeping valley views. Field limited to 250, includes a race shirt, post race lunch and a beer.

In the Heat of the Night is a scenic trail loop near Anniston, AL offering 10k to 100k on dirt and gravel roads through Talladega Forest. Expect big climbs, fully stocked aid stations and handmade finisher amulets in a lively night race.

Run rugged loops at Crystal Springs Ultra in Wytheville on August 8 2026 with 12 hour 6 hour and 3 hour options. Technical trails, scenic views and a cupless format make for a full trail challenge.

Run scenic bluffs and Mississippi River views at the Mines of Spain Trail Races in Dubuque, featuring half marathon, 7 mile and 4 mile course options. Expect technical mixed terrain, aid stations, and a free kids Mini Mines during packet pi..

Join the 14th Annual Sweltering Summer Ultra, an 8 hour track challenge at Clapp Park in Pittsfield on August 8, supporting the AYJ Fund for children with cancer. Chip timing, a lively aid station and pizza and ice pops keep energy up.

Take on the Elkhorn Relay on August 8, 2026 near La Grande, Oregon in a 6 person, roughly 80.6 mile team challenge with about 6,000 feet of gain and climbs to around 7,400 feet. Enjoy river roads, gravel backcountry and a ski resort trail f..

Experience the 4th Annual Swift Bear Trail Run in Hays Montana with scenic mountain courses and options from a 10 mile or 20 mile up to a new 50K. Varied trail terrain, friendly competition, and prizes for top finishers await.

Pick a 5k, 10k, or half marathon on scenic gravel trail loops with chip timing, a finisher medal and a technical shirt. Run in person or virtually, earn series points and support Operation Enduring Warrior.

Run Capt'n Karl's at Reveille Peak Ranch near Burnet, Texas on August 8 and 9, 2026 for a rugged, scenic weekend across rock domes, single track and wooded hills. Distances span 1 mile youth to 60K on technical terrain with steep climbs.

Experience the Trail Animals Running Club Summer Classic at Medfield's Noon Hill and Shattuck Reservations, a scenic and challenging 10 mile loop of forested singletrack that climbs to a Noon Hill vista. Distances include 10 miles, 40 miles..

Challenge Skyline Mountain in Eden, Utah with distances from a half marathon to a rugged 55K. Expect mostly single track trails, ridgeline views and serious elevation gain for a true mountain test and ideal fall 100 training run.

Take on the Thunder Mountain 50K, a High Sierra trail challenge near Lake Tahoe at 7,400 feet with roughly 7,700 feet of climbing and stunning alpine scenery. Three scenic loops, limited to 100 runners, and a commemorative medal for all fin..

Run through rugged mountain scenery and mining era relics at Prospector's 50k and 30k in Cooke City Montana on August 8 and 9, 2026. Choose a 50k or 30k route for a scenic, historic trail adventure.

The Outlaw Trail Ultra Half Marathon is a point to point, mostly downhill trail run through the Sawtooth National Forest near Hansen, Idaho. Tackle rugged jeep road and scenic single track as you finish at Third Fork Campground on August 8,..

Join the SAR Wild Run at scenic Shaver Lake to support Fresno County Search And Rescue. Pick a half marathon, 10k, 5k, 2 mile hike or virtual entry and tackle trails through meadows, forests and streams before a festive postrace BBQ and awa..

Challenge yourself on rocky, rooty trails at Stokes State Forest on August 9, 2026, with 5K, 10K, 10K ruck and a rugged 17 mile course with big climbs. Ruck divisions, age and disability accommodations and aid stations mean serious fun with..

Scenic, mostly downhill run from Snoqualmie Pass to North Bend, featuring the Snoqualmie Tunnel and big net drops ideal for PRs. Registration is paused while organizers assess trail damage and consider alternate routes.