Trail Running Calendar United States 2026-2027

A noncompetitive ascent-only challenge on Mudlick Mountain near Patterson, MO, where hikers attempt eight climbs (about 21 miles total and 7,980 feet ascent) within twelve hours; shuttles return hikers to the base after each summit.

Run scenic, rugged trails at Grayson Highlands State Park May 2 and 3, 2026 with distances from 8 mile to a full 50 mile challenge. Finishers get a beanie or hat and medal plus post race food, pro photos, and awards.

Run the Donald Dash Trail Run at Donald County Park in Mount Horeb on May 2, 2026 for scenic prairie, sandy and hilly single track trails and distances of 5 km, 15 km and a Kids One Mile Fun Run. All net proceeds fund Friends of Donald Park..

Take on TutHell 50K in Sioux Falls, a brutal but addictive 100 lap climb up and down Tut Hill that tests grit and builds camaraderie. Entry by essay and donations to charity make this an exclusive purpose driven ultrarunning challenge.

Run a scenic 6 mile rim to rim course across New River Gorge, featuring a big descent and climb and a finish at Adventures on the Gorge rim side pool. Post race catered brunch and proceeds support Active SWV programs.

Run challenging trails with lake views at Lake of the Ozarks State Park in 5 mile, 25K or a unique run plus paddle traverse. Enjoy a post race TrailFest with live music, food, vendors and camping nearby.

A trail running event at Agricultural History Farm Park in Derwood, Maryland, featuring timed lap challenges where each lap must finish in under an hour and also offering a marathon and 25K.

On May 2, 2026 Greenland Trail Races in Larkspur, Colorado offer 4 Mile, 8 Mile, 25K and 50K trail options on dirt trails with aid stations, chip timing, a virtual option, and awards by overall and age group.

Niwot's Challenge is a by invitation only endurance event near Sedalia, Colorado that prizes off trail navigation and self reliance over racing. Limited to 40 entrants, it offers routes up to 100 miles for experienced wilderness runners.

Run among the iconic red rock spires of Garden of the Gods with distances from 5K to a Double Take or 9.5 mile course. Traffic free roads and trails promise stunning views of Pikes Peak and formations like Siamese Twins and Balanced Rock.

Choose from 25K, 50K or a challenging 50 mile out and back across backcountry gravel roads through Flint Hills tallgrass prairie. Expect friendly aid station support, a tri blend finisher shirt and a memorable prairie running experience.

A 62 mile trail ultramarathon in the Marin Headlands near Stinson Beach, CA, featuring over 11,000 feet of climbing, marked trails and staffed aid stations with medical crews. Entry is limited to 400 runners and a four person relay is offer..

Join Stomp Out Suicide on May 2, 2026 at Withlacoochee River Park for a scenic trail run or walk that raises awareness for suicide prevention. Choose 1 mile, 5K or 10K routes and enjoy a race shirt, snacks and a finisher award.

Bluffs Trail Runs invites trail lovers to scenic courses through Echo Bluffs and Current River State Parks with bluff and river views across distances from 5k to marathon. Chip timed event with custom shirts and handcrafted wooden medals.

Take on the VCP50k, a 50 km ultramarathon through Van Cortlandt Park in the Bronx on May 2, 2026, featuring the classic Tortoise and Hare looped course with roots, rocks and 2,200 feet of climbing. Finishers get a custom medal, limited edit..

Join The Big Deal at Great Seal State Park in Chillicothe, Ohio on May 2, 2026. Races range from youth 5k to 100 mile and take runners on rugged 20 mile single track loops with about 3000 feet of climb each.

Run the Moonlight Bootlegger 5K at Hagan Stone Park under glowing LED tea lights with live bluegrass near the finish. Bring a headlamp for rooty, rolling trails and enjoy a custom shirt, post race food and a moonshine mason jar.

DENFIT ULTRA at Buffalo Ski Center is a 10 km ski slope loop with 50k or 100k options, offering big elevation and possible snow. Parts are unlit so headlamps are required and finishers earn medals and custom spears.

Run the Firelane Trail Trial on May 2, 2026 in Forest Park Portland, a steep 4.45 mile out and back up Firelane 1 with challenging grades and a live feed at the turnaround. Finish with a post race gathering at Great Notion Brewing; field ca..

Hit scenic equestrian trails at the Trail Mix Race on May 2, 2026 at Lake Rebecca Park Reserve in Rockford MN, with rolling hills, wetlands and wooded terrain. Distances from 6K to 50K and aid stations make it ideal for trail runners of all..