Trail Running Calendar United States 2026-2027

A 100 mile loop through Colorado's Sawatch Range, the High Lonesome 100 covers about 23,300 feet of climb, includes 27 miles of the Continental Divide Trail and 35 miles of the Colorado Trail, and provides detailed maps and aid stations.

A July 17 running event in Downtown Dowagiac offering 5K, 10K and a one-mile Family Fun Run, with proceeds split between cancer research and student scholarships and medals awarded by age group.

A two day festival in Centennial Park, Cañon City that pairs whitewater competitions with running and biking events. Events list experience levels and participants receive festival entry on their event day.

A three day, 10 person team relay through Michigan landscapes held July 17 to July 19, 2026. Founded in 1992, the event supports Michigan Special Olympics and lists 86 teams for 2026.

Two 3 mile cross country races in July organized by Hanson's Running Shop at Stony Creek Metropark and River Bends Park. A single $10 fee covers both events, with results posted and first place awards by age group after each race.

A community 2 mile walk and run on the shady Ben's Run trails in Spencer with a pool party and a kids splash competition, held at Spencer City Pool; adult entry is ten dollars and children 10 and under are five dollars.

A two day Spartan obstacle event at Cannonsburg Ski Area near Grand Rapids featuring Sprint 5 km with 20 obstacles, Super 10 km with 25 obstacles and a kids race. Courses run across steep climbs, water crossings, trails and sand pits.

Experience trail running through an active working farm in Winona Minnesota. Choose from five distances ranging from 5k to 43k with no cutoffs for the longest event.

A Last Person Standing backyard ultra in Holly, Michigan, run on a repeating 4.167-mile trail loop that becomes a night road loop. Crew is allowed, water is provided, and on-site prizes include a champion's jacket and next-year entry.

An elimination endurance race in northeastern Utah where runners repeat 4.1 mile laps each hour and are removed if they fail to complete a lap or start the next one. The last runner earns 50 USD per lap completed.

A multi-distance trail endurance event on the Tahoe Rim Trail held July 18-19, 2026, offering 23K, 50K, 100K and 100 Mile options. The races are ITRA qualifiers with published time cutoffs and support local trail and community programs.

A backcountry footrace of about 23 miles from above Girdwood to the Eagle River Nature Center on July 18, 2026. The unmarked, technical route includes snowfields, a cold river crossing, and possible wildlife encounters.

A mountain ultramarathon in Tellico Plains, Tennessee on July 18, 2026 offering 130K, 70K and a 24-mile Waucheesi Challenge with live YouTube coverage and aid stations both day and night.

A 30K night trail race at Green Swamp West Tract near Dade City, FL on July 18, 2026, featuring varied Florida terrain, aid stations every 3 to 5 miles, reflective pink course marking, one Berm drop bag zone, and a post race potluck.

A three day 120 miles trail running event near Buena Vista Colorado using charity bibs that require a minimum $2,000 fundraising commitment. Successful fundraisers receive a registration code and donations are final and distributed in Decem..

Mountain trail races in Silverton, Colorado on July 18, 2026. Distances include a 50K, a marathon and an 8.4 mile out and back that run on Alpine Loop and Kendall Mountain jeep roads near California Pass.

A loop-based trail event in Jackson, MS offering 100K, relay teams, 50K and a 25K fun run on mostly single track. The shaded course has modest hills and aid stations; summer heat, time limits, and safety rules are emphasized.

Trail races on the Harding Truck Trail in the Santa Ana Mountains offering 50K, 30K and 15K courses with significant elevation gain, aid stations, required shuttle access and typically hot July conditions.

Tough Mugu is a coastal mountain trail running event at Point Mugu State Park on July 18, 2026 offering a 25k and shorter course options. The event includes chip timed results, a finisher medal and race tee, and a cash prize for the 25k pod..

Trail out and back races near Kading Campground with 15 km and 30 km options, creek crossings and mountain views. Post-race food, beverages and prizes are available.