Trail Running Calendar United States 2026-2027

Celebrate Mother's Day on May 10th with a family-friendly run or walk. The event, held at Pinto Lake County Park, features a 1K kids run, 5K, and 10K. Your participation benefits Pajaro Valley Shelter Services.

Experience a memorial trail run or road walk through the rolling single track trails of Little Creek Park. Honor a local runner while supporting children’s cancer charities in this community focused event.

Experience a scenic 13.8 mile singletrack loop through the stunning North Fruita Desert. Enjoy flowy trails and desert mesa views as part of a vibrant outdoor adventure festival weekend in Colorado.

A multi-day timed running festival at the Sussex County Fairgrounds featuring a certified 1.000 mile loop, multiple timed race durations, certified marathon and 50K options, on-course timing display, aid station kitchen, camping and RV faci..

Join this weekly trail running series at the Catamount Outdoor Family Center featuring distances from 5k to 10k. There are special categories for children and water stations available on site for all runners.

The Johnnycake Jolt Series offers four weekly 10k trail runs in Patapsco Valley State Park. It's a grassroots, low-key event organized by park stewards, with a discount for park members.

A Missoula trail weekend on June 7 with a 13.1-mile mountain half and a 6.2-mile 10K, cupless aid stations, capped fields, and virtual options running May 14 to June 23.

This 104-mile ultramarathon traverses the Chattahoochee National Forest with 33,000 feet of climbing. It qualifies for major lottery races and has strict entry requirements for experienced trail runners.

A multi-distance desert ultra near Kanab, Utah, with 115 miles, 50 miles and 50 km routes over sand dunes, canyons and plateaus; aid stations include food, night services and limited sleep space.

Experience a high desert ultra across the rugged red rock canyons and sandy plateaus of southern Utah. Choose between 115 mile, 50 mile, or 50 km distances in this sanctioned event starting and finishing in Kanab.

Trail running event in Rothrock State Forest and Happy Valley, Pennsylvania. Races include a 50K and 25K with notable elevation gain amid sandstone ridges and rhododendron tunnels in mid May 2026.

A three day trail running stage race near Wildwood Missouri offering a 100K option and individual stages of about 21 miles, 26 miles and 25K. Expect rocky singletrack, creek crossings, significant elevation gain, and a cup free, low waste e..

Event Overview The Trail Running Events at Dominion Energy Riverrock is a series of trail races taking place over three days in May. All events start and finish at the Belle Isle Parking Lot in Richmond, Virginia. The Races Three separate t..

Gather your friends and family for a 3.1 mile fun run at Leach Park in Minot. All participants earn a finisher medal while supporting the Strides for Sunnyside Run Club at this community focused event.

Test your resilience at Reveille Peak Ranch with a weekend of obstacle course racing through Texas Hill Country. Choose from 5K, 10K, kids distances, or endurance challenges across granite outcrops and desert trails.

Experience high altitude obstacle racing at Big Bear Mountain Resort featuring steep climbs and over 1200 feet of descent. Conquer the Sprint, Super, or Beast distances to earn your Trifecta qualification in the San Bernardino National Fore..

Trail race at Palisades Park in Oneonta offering 5K, 10K, 15K and 20K as loops of a 5K course; mixed park road and improved trail, optional tower climb awards a medal, and proceeds support OHS Cross Country and Palisades Park.

Trail races at Skyline Wilderness Park near Napa offering 50K, 30K, 21K and 10K on routes with Rim Rock climbs and wide valley views. Aid stations are touchless and the event is cupless so runners must bring their own cup or bottle.

Looped gravel and rail-trail ultraraces near Enterprise, KS offering 50K, 100K and a 100 mile race. Manned aid on the loop, pacers allowed from loop 6, tri blend shirts, awards and finisher buckles.

Rumble on the Ridge is a Last Person Standing loop race in Arena, Wisconsin on May 16, 2026 where runners repeat a roughly one mile loop with a twenty minute cutoff until one person completes every lap.