Trail Running Calendar United States 2026-2027

Muddy Princess Charlotte is a women only 5K obstacle mud run at Porter Farms on August 30, 2026, featuring 18 plus obstacles, on course support, volunteer roles with benefits, and a partnership with the National Breast Cancer Foundation.

Experience a unique trail race through the historic Blackacre Nature Preserve featuring wooded paths and farm animal sightings. Choose between 4 or 8 mile distances and enjoy post race ice cream at the historic homestead.

Experience an all terrain trail race through the scenic Big Horse Vineyards featuring natural obstacles and mud. Choose between a competitive 5K or a social beer mile followed by wine tasting in Central Illinois.

An out-and-back 3.8 mile run at Pen Mar Park with about 1.8 miles of ascent to High Rock Overlook. Held August 30, 2026, with registration deadlines and a higher fee on race day.

Experience a cross country race through Nottoway Park followed by a community picnic. This event features a three mile course and a kids fun run to celebrate the end of the summer season.

A PA/USATF cross country race of 3.4 miles at Spring Lake Regional Park in Santa Rosa on August 30, 2026. The 33rd annual Empire Open features rugged dirt trails, three races including a masters division, and a $1,500 prize purse for USATF..

A 50K run in Black Rock City, NV held during Burning Man with a flat course and festival elements such as trampolines, champagne, and optional costumes. A Burning Man ticket is mandatory and registration closes Aug 19 at 11:59 PM PT.

A weekly trail running race at Catamount Outdoor Family Center in Williston, VT, offering 5 km and 2.5 km courses with adult and youth categories. Races run rain or shine and follow a clear thunder and bib policy.

Trail races through dense East Texas pine forest at Tyler State Park, offered in 5k, 10k, 25k and 50k. Single-track, technical trails are marked and supported by aid stations with refill service and basic first aid.

A low-key Wednesday evening trail race series in Forest Park, Portland, with three seasonal five-race Series and hilly courses of about 4–7 miles. The Series supports the Forest Park Conservancy and includes standings and a post-series gath..

A multi-day ultrarunning event in Loveland Colorado with multiple timed and distance races on a 2 mile loop. Camping is allowed in a designated park area and a 24/7 aid station supports runners throughout the event.

A community 5K trail run and One Mile Move As You Please at Thorncroft Farm in Malvern on September 3, 2026. Cross-country courses include varied terrain and obstacles, with an after-party featuring live music and food trucks and proceeds s..

Experience a unique multi day ultramarathon where your age determines your clock. Run as many miles as possible on a one mile loop in a community focused event that celebrates veteran athletes and long distance legends.

A weekly fall trail running and walking series at Great Glen Trails in Gorham, NH from Sep 3 to Oct 8, 2026. Choose from 5 km, 3 km or 1.5 km courses; dogs on leash are welcome and one-time entries are available on-site.

A multi-distance trail weekend in early September 2026 through the Dark Divide Roadless Area in the Washington Cascades, featuring a 100 Mile race with a 48 hour cutoff, a new point to point 100K, a 50K and a 14 Mile Fun Run.

Test your limits at Decker Farm with a grueling combination of military boot camp and farm chores. Choose between 4, 12, or 36 hour endurance challenges featuring heavy carries and undisclosed physical tasks.

A multi-day timed running event on a 1.5 mile loop around an organic vegetable farm near Lennox, SD. Durations range from three hours to 48 hours and the course includes a staffed aid station and camping for crews.

A trail event at Hemlock Nature Preserve on September 4, 2026, featuring a 7-mile course and a 1-mile option, a knee-high river crossing, live German music, a biergarten, chip timing, and awards. A portion of proceeds supports Bike Clevelan..

A nighttime trail event in Cameron Park, Waco offering 5K, 10K, 15K, half marathon and a 10K ruck on dirt and rocky single track. The 15K loop shows about 1300 ft elevation gain and the race is part of the Texas Summer Night Series.

A trail race around Boardman Lake in Traverse City offering 4 miles, 8 miles, and a two person relay on mostly paved trails with some boardwalks and bridges. All finishers receive a technical running cap and a bowl from Playa Bowls.