Trail Running Calendar United States 2025-2026

Tackle Volcanic, two rugged trail races on Mt. St. Helens from Marble Mountain Sno Park. Choose 25K or a circumnavigating 50K across boulder fields, river crossings and steep rope assisted terrain for epic volcanic views.

Tackle a scenic 15 mile high altitude trail to Kennebec Pass with sweeping river valley views and alpine wildflowers. Limited to 150 runners and benefiting La Plata County Search and Rescue, this intimate mountain run rewards effort with ho..

Blue Hill Mountain Trail Fest offers 5k to 50k trail distances on scenic coastal and forested routes with wildflower fields and summit views. Proceeds support local Indigenous groups and the land trust, and registration opens Jan 1, 2026.

Tackle scenic single track and winding trails at the Oakadoke Trail Runs in Valparaiso on August 1, 2026, with 4, 9, and 18 mile options. Enjoy creek crossings, farmland views and a friendly post race gathering for all finishers.

Take on Aspen Backcountry with 50K, marathon or heavy half routes from Rio Grande Park, mostly on scenic dirt trails and high alpine terrain. After the finish enjoy the Duck Derby festival with live music, food and local vendors.

Blazin' Summer Sufferfest is a night trail race at Cedar Hill State Park along Joe Pool Lake, with distances from a 5K up to multi loop ultramarathons. Expect varied forest and grassland terrain and bring your own light and hydration for a..

Tushars Mountain Runs at Eagle Point Resort offers 100K, 70K, marathon and half marathon on high alpine technical trails with big climbs and sweeping views. Prepare for serious elevation, remote aid stations and unforgettable mountain scene..

Take on riders at Steel City Human vs Horse, a one of a kind trail endurance event at Hillman State Park. Choose 20k, 50k or 50M across single track, gravel and meadow trails with camping and a pre race safety meeting.

Run scenic 5K, 10K or half marathon around Green Valley Lake with lake loops, forest trails and a steady climb to a sweeping viewpoint. Celebrate after with food, live music and community energy while supporting the Children's Forest.

Alpine trail racing at Taos Ski Valley on Aug 1 and 2 2026: the Up & Over 10K with a massive climb and technical descent, a steep Vert K, a kids fun run and two day Double Trouble. Shirts, medals and post race refreshments included.

Run the Vineyards at Bohemia Manor Farm on Aug 1 features scenic 5K and challenging 8K routes through vineyards, riverside views, and wooded trails. Finish with a souvenir wine glass, live music and a waterfront after party for all to enjoy..

Enjoy scenic trails near Yellowstone with Marathon, half marathon and 10K routes featuring challenging climbs and single or double loops. Starts and finishes at Rendezvous Ski Trails with aid, GPX maps and a finishers medal.

Tackle rugged Wyoming wilderness trails at El Vaquero Loco in Afton, offering 31k and 50k options. A longtime community race supporting Star Valley High School Track and Cross Country, it blends scenic challenge with small town spirit.

Ridge Reaper Trail Runs at Ward Pound Ridge Reservation mixes runnable singletrack and carriage roads with rewarding ridge views. Choose 25K, 50K or 50M for big elevation gains, aid stations, finisher medals and podium awards.

Tackle scenic East Bay trails in the historic Skyline 50K or choose a half marathon around Lake Chabot Marina in Castro Valley. Finish with a plant based BBQ and beer while families enjoy the festive atmosphere.

Challenge yourself on the Ely Mountain Trail Race at Balsam Forebay near Shaver Lake, CA, with 14K and 8K courses featuring steep climbs and sweeping Sierra views. Capped at 250 runners, both routes offer rugged singletrack and a festive fi..

Beat the heat at the Heatwave Half Marathon in Kansas City, offering distances from a kid dash and 1 mile to 5K, 10K and the half marathon. Enjoy a designer shirt, custom medal, chip timing, free photos and Kona Ice at the finish.

Tackle Salt and Sulfur 420 on August 5, 2026, a 420 mile run from Salt Lake City to West Yellowstone. This crewed event benefits the Women's Center in Salt Lake City with all proceeds donated.

Run the Lory Summer Trail Series at Lory State Park in Fort Collins this August with four midweek trail races from a fast 5k to a testing 12k. Perfect for newcomers and speed seekers, with post race pizza, drinks, and series awards.

High Five 100 is a self guided mountain challenge from Lake City, Colorado: roughly 90 to 105 miles with about 40,000 ft of climbing and summiting five 14ers. Finish the unmarked route within 48 hours; registration opens January 1, 2026.