Trail Running Calendar United States 2025-2026

The Thacher Park Trail Running Festival, established in 2014, takes place at Thacher State Park in Voorheesville, NY. This scenic event offers participants a choice of four race distances: 10K, 13.1M, 26.2M, and 50K, allowing runners to experience the park's beautiful trails. The festival promotes a..

The Hellbender 5k & Half Marathon is an exciting running event scheduled for August 24, 2025, in Bear Gap, Pennsylvania. Participants can choose between a half marathon and a 5k race, both of which feature scenic out-and-back courses through the picturesque Weiser State Forest. The event aims to pro..

Groovin' in the Aspens is a trail running event held at the Fort Valley Trailhead in Flagstaff, Arizona. Offering distances of 6K, 10K, 20K, 30K, and 50K, the race courses wind through the scenic pines and aspens of Flagstaff's premier trail systems. The 6K is a relatively flat, easy green loop arou..

The 10k Classic Trail Run in Albuquerque, NM, offers a scenic and challenging course starting at the Embudo Trailhead Parking Lot. Participants run a 10-kilometer loop through the south foothills, featuring single track trails, switchbacks, hairpin turns, and technical uphill and downhill sections...

The Triple Dam 10K is a scenic running and walking event held at the Power Dam Recreation Area in Perkinsville, Vermont. The course features a beautiful loop on gently rolling terrain along the Black River, incorporating grassy trails, dirt roads, and single track paths. The route starts and finishe..

The Race to the Top of Vermont will take place in Stowe on Sunday 24 August 2025. You can run between 4 and 4 miles.

The Blackacre Barnstormer is a trail running event taking place at the Blackacre Nature Preserve in Louisville, KY. Participants can choose between a 4-mile or an 8-mile course, both of which offer a unique experience running through scenic trails and fields, with opportunities to see local farm ani..

The Burning Man Ultramarathon is a 50-kilometer race held in the Black Rock Desert of Nevada during Burning Man. Open to all ultrarunners and festival participants, the event features a flat, fun course through the Dusty Playa, emphasizing community, creativity, and self-expression. Participants oft..

The Catamount Weekly Trail Running Race will take place in Williston on Tuesday 26 August 2025. You can run between 5 and 5 kilometers.

The Eltuck Valley 12K is part of the Lory Summer Trail Series, taking place at Lory State Park in Bellvue, Colorado. This event features a series of midweek trail races designed for both novice and experienced runners, offering distances from 5K to 12K. The series aims to provide a fun and low-key a..

The Flusslauf Trail Run & Hike is an exciting 12-kilometer (7-mile) trail event held at Bedford Reservation in Walton Hills, Ohio. Participants can run, ruck, or hike through scenic wooded trails featuring natural obstacles like tree roots and a river crossing that requires getting wet twice. The ev..

The Front Range Ultra Dayze is a multi-day ultra-running festival held in Loveland, Colorado, from August 28 to September 1, 2025. The event features various timed races, including 12, 24, 48, 72, and 100-hour events, as well as distance races such as 100-mile and 200-mile runs. Runners can start th..

The 5K Run for Thorncroft is an exciting event scheduled for August 28, 2025, in Malvern, PA. Participants can choose from several activities, including a 5K Trail Run, a 5K Walk, and a One-Mile Move-As-You-Please. The event is designed to be inclusive, welcoming dogs to join in the fun. After the r..

Goats in the Dark is an exciting 5k running event set in Helena, MT, featuring a scenic course that begins at the corner of LeGrande Cannon Blvd and Silverette St. This year's race is scheduled for August 29, 2025, and will take place earlier in the season, allowing participants to enjoy cooler nigh..

The Cabernet Canter Cross Country 5K/10K is an exciting running event taking place at Talon Winery in Lexington, KY. Scheduled for August 29, 2025, this annual race features both 5K and 10K cross-country courses, allowing participants to enjoy the scenic winery landscape. All runners receive a race..

The Tejas Dirt Festival, formerly known as the J&J Race, is a premier off-road sporting event held at Camp Eagle in Rocksprings, Texas, near San Antonio and Austin. Taking place over Labor Day weekend, this three-day festival features trail running races (5 miles, 25K, 50K), rucking races, mountain..

The Dark Knight Trail Run in Helena, Montana, is a family-friendly night race held on the trails of Mount Helena’s western flank. Taking place in late August, the event features a scenic course that begins on Helena’s west side and includes switchbacks, singletrack trails, and a final sprint along L..

The Blood Run is a multi-distance endurance running event held near Lennox, South Dakota, from August 29 to 31, 2025. Participants can choose from various race durations, including 36-hour, 24-hour, 12-hour, 6-hour, and 3-hour races, all taking place on a 1.5-mile loop around an organic vegetable fa..

Run-de-Vous is a community-focused running event held at Harvey Bear Ranch Park in San Martin, California, on August 29, 2025. The race features multiple distances, including 100 miles, 100K, 50 miles, marathon, 50K, and a 4-person 50M relay. The course is a fast, manageable 2-mile loop set against..

The Booneville Backroads Ultra, scheduled for August 30, 2025, offers a challenging running experience through the scenic rural landscapes of Iowa, including the iconic Bridges of Madison County. Participants can choose from various distances: 100 Miler, 100K, 50K, and 10K. Notable changes for 2025..