Trail Running Calendar United States 2026-2027

Trail races at Philmont Scout Ranch in Cimarron, NM on August 1, 2026, offering 50-mile, marathon, 18-mile and 8-mile options; proceeds benefit Philmont Scout Ranch and events are open to ages 18 and older.

A mixed road and trail 5K in Mattawan, Michigan that starts and finishes on the high school track. The course includes dirt, grass, and road sections; food and drinks will be available at the finish and dogs are not allowed.

A 10th annual trail event at Left Coast Estate on August 1, 2026, featuring 10K and 5K courses through vineyards and oak savannas. Proceeds support an Oak Savanna Restoration Project and the day includes post-race tasting and awards.

A two lap 10 km trail run around Stryker Lake at Griffin Bike Park on August 1, 2026 with rolling hills, generally stable footing, onsite registration, and series bonus points for finishers.

A 12 hour run and ruck on a 1.52 mile paved loop at Smith Park in Middletown, Ohio. Chip timing, a stocked aid station, weight rules for ruckers, and student crafted finisher awards for several distance milestones.

Trail races near Middlebury, Vermont offering a 14‑mile and a 36‑mile mountain single track route that climbs Mount Moosalamoo with views of Lake Dunmore.

A multi day endurance event at Lake Padden offering six, twelve, twenty four and thirty two hour races on a marked 2.6 mile loop with night lighting, on course aid, and awards for top finishers.

High-alpine trail races in Winter Park, Colorado, with 50K, 21K and 10K routes that run on mostly singletrack and finish in town amid mountain scenery and community amenities.

Test your endurance at this military inspired obstacle course featuring mud crawls and climbing walls. Supporting the Light Foundation, the event offers a 5k trail for adults and a dedicated race for children.

Timed 12-hour and 6-hour trail races in Palm Coast, FL on Aug 1, 2026, held on a flat, shaded almost one-mile loop between river and ocean, with a fully stocked aid station and experienced volunteer support.

Mountain road races on Hatcher Pass offering a marathon, a roughly 54 mile ultramarathon, and 3-person relays. Courses follow Hatcher Pass Road with significant elevation gain, seven aid stations, and specific gear and crew rules.

A remote mountain trail event near Helena, Montana offering 50 mile, 50K and 13.1 mile courses on technical single track and primitive roads with substantial elevation gain and multiple aid stations. Wildlife is common on course.

An evening trail event on a roughly 1.6 mile loop where runners repeat laps until they miss a shrinking cutoff. Distances can range from a single lap to 35 plus miles as the field naturally thins.

Experience a loop based trail race at the Newbsanity Adventure Center featuring creek crossings and swamps. Choose between 5K, 15K, or 50K distances with an optional rucking class for those seeking a weighted challenge.

Season opener cross country meet on August 1, 2026 at West Guth Park in Corpus Christi, TX. Open to all with overall, age group and team awards plus finisher medals and a 5K race.

Trail races at Little Bennett Regional Park on August 1, 2026 feature a 3.7 mile 5K plus and a 6.2 mile 10K on twisty singletrack with hills and streamside sections. Staging is near the Prescott Horse Trailer Area in Clarksburg Maryland.

Experience an intense mountain trail race at Swain Ski Resort featuring 2500 feet of elevation gain across two loops. This USATF Niagara Championship event tests runners with steep ski slope climbs and rapid descents.

Trail races on August 1, 2026 in the Marin Headlands near Sausalito offer 8K, half, 30K and 50K courses with coastal single track, ocean and Golden Gate views. The event is chip timed and runs as a cupless race.

Terrain Race Houston on August 1, 2026 at Three Palms Action Sports Park features a 5K style obstacle course with mud, walls, ropes and monkey bars. The event includes pre race and finish line festivals and Value or VIP registration options..

A 5K mud run on August 1, 2026 at 508 INTL- Adventure Sports Center in Boston, featuring obstacles, mud pits and slides, plus Pre-Party and After-Party with music, food and beer. Kids are welcome and light quick-dry gear is recommended.