Trail Running Calendar United States 2026-2027

A community running event in Vian, Oklahoma on August 15, 2026 offering a 5K trail run, a 1K paved fun run/walk, and a virtual 5K available through August 22.

Hill of a Race 2026 in Bloomington, IL combines a lap based Endurance Challenge with multiple 3 mile obstacle course waves, including competitive men, women, masters and several recreational waves.

A 50K ultramarathon in Marin County on August 15, 2026, running iconic Coastal, Miwok, Matt Davis and Dipsea trails with about 6,600 feet of elevation gain. Part of the USATF PA Grand Prix and offering a $10,000 podium purse.

Test your endurance at Ferncliff Camp with a multi loop trail race near Little Rock. Enjoy a post race cookout and pool access after navigating inclines and water crossings across various distances.

A 5K and a 1 mile run and walk on the Pennsy Trail in Greenfield, IN, held at Sister Cities Park next to the police department. The course is an out and back along the trail and race and volunteer registrations have set dates and fees.

A two-person relay on the Ozark Trail combining trail running, mountain biking and paddling through the Mark Twain National Forest, with two course lengths, aid stations and paddle equipment provided.

Test your endurance at Prairie du Chien's first backyard ultra featuring a 4.167 mile trail loop through La Riviere Park. Run one lap every hour until only one participant remains or enjoy a relaxed one lap fun run.

A 25K trail loop through Cook Forest State Park on August 15, 2026, featuring a climb to Cook Forest Fire Tower, riverside sections along the Clarion River, and three aid stations staffed by local high school cross country teams.

Trail running and rucking on Riley Trails in Holland, MI, with half marathon, 10K, and ruck options. Registration closes Aug 12 and 100% of proceeds support the Egress Endurance Project.

Tour de Trail: Lexington Lake is a trail event in DeSoto, KS on August 15, 2026, run by Team Sparkle as part of a six race series. Entries support Urban Trail Co; the course is in the 10K range and aid stations are water only.

Experience the trails of Cheyenne Mountain State Park with three race distances ranging from a 5K walk to a 25K mountain challenge. This chip timed fundraiser supports park conservation through scenic and high elevation courses.

Trail running and mountain bike races at the Underdown Trail near Merrill, WI feature multiple distances on well marked singletrack with boardwalks, aid stations, awards, and a postrace gathering with music.

A community 5K and a kids 1 mile fun run at Token Springs Elementary on 08/15/2026. The mostly bike-path out and back course runs through The Reserve neighborhood and supports the Sun Prairie West Cross Country Team.

A 5K off-road trail run, walk, and hike at White Barn Farm through Wrentham conservation land. The event is part of the Farm to Trail 5K Series and raises funds to support local agriculture and food pantry donations.

A rugged 5K trail race at Oak Mountain State Park that climbs and descends about 1,100 feet over 3.1 miles on single-track trails including Blue Trail, Outback Highway, and Eagles Nest. Awards include King and Queen, and runners under 40 mi..

Time-based mountain bike and trail run event at Big Hill Trails supporting Northern Hills Area CASA, with 3- and 6-hour race options, team entries, aid stations, participant lunch, camping allowed, and cash prizes for breaking 6-hour bike r..

A 5K chip-timed run and a 3K scavenger-hunt walk through St. Patrick's County Park featuring trail terrain, participant medallions, post-event refreshments, awards by age group, and proceeds that support park programs.

Westminster Trail Race at Standley Lake on August 15, 2026 offers five distances from 5K to 50K on 100% dirt trails with out and back course formats, elevation gain, on course support, and parking at Wayne Carle Middle School.

A 50K trail race in Prescott, Arizona that starts and finishes at Thumb Butte Trailhead. The 31.7-mile course gains about 4,500 feet and passes Thumb Butte, Quartz Mountain and Sierra Prieta Overlook with aid stations on course.

Experience a rolling cross country run through the forests and meadows of the Landis Arboretum. This sanctioned 5K race offers views of the Schoharie Valley and access to scenic trails and gardens.