Trail Running Calendar United States 2026-2027

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.

A trail running event at Turpin Meadow Ranch in Jackson Hole on August 22, 2026, featuring 30K, half marathon and 8K courses with Grand Teton views. The run benefits the John Wayne Cancer Foundation and includes finisher items and podium pr..

Loop based trail event at Cliff Cave Park on a marked 3.1-mile (5K) loop with a stocked aid station and varied terrain by the Mississippi River. Distances range from 5K to 50K and athletes may stop after any completed loop.

A continuous loop trail race at Cliff Cave Park on a 3.1 mile (5K) loop with fully stocked aid each lap. Distances are 40 miles and 50 miles with a 12 hour time limit.

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.

A loop style endurance event in Paul Smiths NY with time based options of 6 hours, 3 hours, and 1 hour on an approximately 4 mile course. The course mixes singletrack and wide former logging roads and includes live music and food.

An Alice in Wonderland themed night event at Echo Canyon State Park featuring a 1.8 mile reservoir loop and multiple unusual race formats from timed loops to dice-based team runs.

An off road sunrise trail race near Kirksville, MO offering 10K and 5k routes with sunrise views over Forest Lake. The event is a fundraiser for FLATS, has limited parking so carpooling is encouraged.

Two events at The Farm in Carney, Michigan on August 22, 2026. A woodland 5K and a Mail Pouch Beer Mile run as four 0.25 mile laps with a 21 plus age requirement for the beer mile.

A community 5k run and walk in Lakeside on 08/22/2026 along the Turkey Track loop to Walnut Creek, with lunch at the Woodland Lake Park East side pavilion. Proceeds support local community centers LGBTQ+ programs.

A 5k fitness race in Owosso that alternates running segments with functional fitness tests, offered in a prescribed competitive division and a flexible Good Time division. Heats are small and awards and event tanks are provided.

A trail race at Northland Arboretum on August 22, 2026 offering a Half Marathon and 10K on forested, off road trails with chip timing, aid stations, race shirts, and limited entries.

A half marathon trail race in Evergreen, CO that reaches the summit of Bergen Peak. Organized by the local parks district, the event includes vendor tents, refreshments, a cup-free policy and course marshals.

The 21st Annual Martha Walker Wild Duck is a 5 km cross country race at Guajome Regional Park in Oceanside, California. It is the opening race of the 2026 Dirt Dogs XC Series and includes a race flyer and course maps.

Trail running at Krause Springs, Spicewood with 5k to 50k distances plus a youth run, aid stations, medals, on-site activities, and a cupless format. The event is postponed due to severe weather; transfer and reschedule options are offered.

Leopold’s Preserve 5k & 10k in Broad Run, VA on August 23, 2026 features 5 km and 10 km distances, welcomes walkers, and offers virtual entry options with medal and shirt choices.

A trail running festival at Thacher State Park on August 23, 2026, offering **10K**, **13.1M**, **26.2M** and **50K** courses that share the same first 10K loop. The cupless event has multiple aid stations, post-race food, and medals for ma..

A trail race at Paul Douglas Forest Preserve on August 23, 2026 offering approximate 4, 9.5 and 13 mile options. Part of the Dick Pond Athletics series with proceeds supporting the Chicago Area Mountain Bikers.

Muddy Princess Raleigh is a women only 5K obstacle mud run at North Carolina Motorsports Park on August 23, 2026. The course features 18 plus obstacles and welcomes participants aged seven and older to run, jog or walk.

A trail event at Granite Beach on August 23, 2026 offering 5K and 10K courses for runners and their dogs, with finisher medals and dog bandanas; aid stations provide drinks and gels and dogs have their own water.