Trail Running Calendar United States 2026-2027

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..

Conquer the Bluff in Jacksboro, TN on May 2, 2026 is a 4.2 mile climb to Eagle Bluff with about 930 feet of gain. Proceeds benefit Campbell County High School scholarships and high school athletes may enter free.

Experience the Wild Wild West Marathon & Ultra in Lone Pine, California on May 2, 2026 with 50 Miler, 50K, Marathon or 10 Miler routes winding through the Alabama Hills and Mount Whitney foothills. Scenic views and plentiful aid stations aw..

Join the Wiener Run 5K and 10K in San Antonio on May 2 for fun runs, live music, finisher medals and a hot dog at the finish. Proceeds help a local wiener dog rescue and organizers will collect dog food and treats at the park.

Discover the Pechanga Trail Run in Spicewood, Texas on May 2, 2026 with distances from 5k to 50k plus a youth race. Scenic singletrack, friendly aid stations, and a festive vibe welcome runners of all levels.

Take on a spring trail challenge at Queeny Park in Ballwin on May 2 2026 with 5K, 10K, 10K ruck and half marathon options on shaded gravel trails. Professional chip timing, medals, shirts and finish line photos make it a rewarding day for r..

Take on the Chisholm Trail Fest Run half marathon in Caldwell, Kansas May 2, 2026, where 13.1 miles wind through rocky terrain and red dirt hills. Enjoy a scenic, challenging trail experience and secure your spot before registration closes.

Run the trails at General Butler State Park on May 2, 2026 for The Wildcat, a scenic trail race offering 5K, 10K, 1/2 marathon, 20K relay and a 6 Hours of Power event. Enjoy river overlook views, custom medals and on course aid.