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Trail Running Calendar United States 2026-2027

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Explore the best trail runs in the United States for 2026-2027! Our updated list features 3923 exciting trail runs across the country. Find your next trail run in the United States below and join the trail community at these great events!

August 2026
An evening running event in Westerville with a 5K, 1 Mile, and Family Fun Run that raises funds for Westerville Education Challenge and highlights mental health resources and remembrance.
A multi-distance trail event at Green Lakes State Park near Fayetteville NY offering 100K, 50K, 25K and a 12 hour timed loop on varied trail terrain.
Trail races at Curt Gowdy State Park near Cheyenne with 4 and 8 mile courses that climb from about 7,300 to 7,700 feet amid reservoirs and granite formations.
A free WVMTR club trail event at Valley Falls State Park on August 22, 2026, offering distances from 5 miles to 50 miles on two 5-mile loops with a single aid station by the parking area.
August 22 2026 trail event in Blairsville GA with a 50 Miler and a Marathon along the Duncan Ridge; H9 trail club membership is required.
Trail races at Camden State Park on August 22, 2026 with 3 mile, 7 mile and 10 mile courses through river valley, bluff, woods and prairie.
A seventh annual 5K trail run in Wellsboro, PA supporting Heart of Tioga Pregnancy and Parenting Support. Online registration is available through Aug 20 with fees from $25 per person and higher day of registration fees.
Third annual PRHS XC Alumni Race in Minot, Maine on August 22, 2026 features a 5K, a kids fun run, a barbecue and a kickball game.
A roughly 14-mile mountain race that climbs Grandfather Mountain twice over technical singletrack with about 4,200 ft of gain and a 200-runner field.
Peak bagging in Desolation Wilderness with routes to 21 peaks, unmarked off trail navigation, talus and scrambling, creek crossings, and a 30 hour limit.
Trail half marathon and 4 mile races in Palo Duro Canyon State Park featuring single track, sand, rock, and scenic canyon views.
Point-to-point trail run along Kachess Ridge with alpine ridgeline views and Thorp Mountain Lookout, finishing at Salmon La Sac SnoPark, offered as 50K or 50M.
A memorial 5K trail run at Genesee Valley Outdoor Learning Center in Parkton, MD, with a 5K, 1-mile walk, kids dash, team entries, and an In Spirit donation option. Proceeds support a scholarship fund and a post-race festival offers food and music.
A themed 5K and a 500 m kids run on August 22, 2026 at East Davidson High School in Thomasville, NC. The event uses a campus cross country course, encourages decade attire, and includes an award for best dressed.
A 5K trail fun run through the hills of Butternut Valley in Garrattsville, NY on August 22, 2026, presented by Butternut Valley Alliance as part of the Butternut Valley Days celebration; registration fee is $35.
Trail runs at Turpin Meadow Ranch in Jackson Hole on August 22, 2026 supporting the John Wayne Cancer Foundation with 30K, half marathon and 8K options.
A loop based trail event at Cliff Cave Park on August 22, 2026, featuring a marked 3.1 mile loop along the River Bluff Trail with packed dirt, singletrack, and bluff views. Runners may repeat laps to reach distances from 5K to 50K.
Continuous 50 mile trail race at Cliff Cave Park on 3.1 mile loops with a 12 hour cutoff, aid every 5K, chip timing, and pacers allowed after 4:00 PM.
A trail ultramarathon at Prospect Acres Ranch where runners complete repeated 2.2 mile laps in 2, 4, or 8 hour formats. Field camping is available Friday evening and registration is $40 with proceeds supporting future events.
Loop-style endurance race in Paul Smiths NY on August 22, 2026 with 6, 3 and 1 hour options on a roughly 4 mile wooded loop and festival amenities.
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