Trail Running Calendar United States 2026-2027

Join the XC Summer Series, a friendly weekly cross country 5K on Tuesday nights in Parsippany from April 28 to September 1, 2026. All ages and abilities welcome, walkers included, with chip timing and after race refreshments.

A three-date Wednesday evening trail series at Bloomer Park in Rochester Hills featuring a marked 5K loop, light snacks on two dates, a post-series barbecue on August 19 and prizes including ERC gear.

A rolling five mile trail race at Spring Lake Park in Hastings, Minnesota, run as two figure eight loops over prairie and wooded single and double track with about 310 ft elevation gain. Field limit 425 and registration opens Jan 1, 2026.

A three day stage race around Lake Sunapee covering about 75 miles and 15,500 ft of climbing, with an optional 50k on the final day. The format includes overnight camping, gear transport, aid stations and strict gear requirements.

Lean Horse Ultra is a multi-distance trail running event on the George S. Mickelson Trail in the Black Hills, held July 31 to August 1, 2026, with 100 mile, relay, 50, 30, and 20 mile options and a CrossFit edition.

Experience the Wild West Relay, a scenic point to point 200 mile run from Fort Collins to Steamboat Springs. Solo runners and teams of every size are welcome, with live GPS tracking and a mountain finish at Steamboat Springs Ski Resort.

Join the SoCal Summer evening 6K or 12K at Lower Arroyo Park in Pasadena on July 31 2026 and celebrate after with tacos and drinks. Scenic park routes and friendly vibes make this a perfect summer night run.

Two days of trail events at Bogus Basin featuring a steep hill climb, a 5 mile race, and a 10 mile race that climbs over 2,000 feet. Proceeds support Ridge to Rivers and 5 and 10 mile finishers receive a shirt and medal.

Night trail races at San Antonio's Land Heritage Institute with distances from 5K to 50K, including a 17K RUCK requiring a 25 pound minimum. The event is part of the Texas Summer Night Series and features aid stations and finisher awards.

High-elevation trail and ultra races around Fairplay, Colorado, with 50 Mile, 50k and Half Marathon options, technical and remote terrain, aid stations, drop bags, pacer rules, and a 16 hour time limit.

A 100 miles mountain trail race at Mt Hood Meadows with a lollipop-loop course, 17,300 ft up and 17,300 ft down, crew accessible aid stations, chip timing and a 34 hour cutoff. The 2026 edition is a Western States Qualifier.

Remote trail races on Mt. St. Helens with a full loop 50K and a shorter 25K. Routes run mostly on the Loowit Trail across lava, boulder fields, rivers and forest with thousands of feet of elevation change.

A 15 mile mountain trail race in Hesperus, Colorado, gaining about 3,100 feet and topping out near 12,200 feet at Kennebec Pass. This non profit event benefits La Plata County Search and Rescue and is limited to 150 runners.

A multi distance trail event on Blue Hill Mountain featuring 5k, 10k, 25k and 50k routes on figure eight loops, field paths and technical forest trails, with aid stations on course and proceeds to local conservation and tribal partners.

Trail runs at Twin Creeks Farm in Valparaiso feature tree covered single track, switchbacks, bridge crossings and farmland views. Races include 18 mile, 9 mile and 4 mile looped courses with finisher awards and youth pricing.

A trail running event in Aspen on August 1, 2026 offering 50K, marathon and heavy half marathon distances on mostly dirt trails, with remote aid stations, high alpine terrain and a finish line festival alongside the Duck Derby.

A night trail event at Cedar Hill State Park with approximate 5K, 10K, 18K, 36K and 54K options on the DORBA trail system. Runners must carry hydration and may need illumination for night sections; aid stations are limited.

High-elevation mountain trail races from Eagle Point Resort, Beaver, Utah, on August 1, 2026. Four distances (100K, 70K, marathon, half) on technical routes with significant climbing and mandatory safety gear for long distances.

Steel City Human vs Horse at Hillman State Park on August 1, 2026 pits runners against equestrians on scenic single track, gravel and meadow trails. Choose 20k, 50k or 50 mile for a rare side by side endurance race.

A mountain 5K, 10K and half marathon around Green Valley Lake, CA, featuring mixed paved and dirt surfaces, multiple aid stations, chip timing, race awards, and proceeds benefiting The Children’s Forest.