Trail Running Calendar United States 2026-2027

A multi day mountain running celebration in Big Sky, Montana in September 2026, featuring races from a 1K Runt Run to an 84K Trifecta and a Lone Peak Vertical Kilometer. The 2026 event is sold out except the free 1K Runt Run.

Snowbasin by UTMB is a trail race at Snowbasin Resort in the Northern Wasatch with flowing, runnable alpine trails and sustained climbs. Race options include 59 km and 29 km, and the weekend connects to Ogden’s downtown scene.

Trail race in Lutsen, MN on September 11 and 12, 2026 offering 100 mile, 50 mile and marathon options. Entry for 2026 used a lottery with registration open January 1 through January 15, 2026.

Run Woodstock is a two day trail running festival in Gregory, MI on September 11 and 12, 2026. It features races from 5 miles to 100 miles, on-site camping, live music and yoga, with finisher medals and event merchandise.

A 100 mile point to point trail run across the central Wasatch Mountains from East Mountain Wilderness Park to Soldier Hollow, featuring about 24,000 feet of ascent, 23,300 feet of descent, and 15 aid stations along alpine ridges and canyon..

A commemorative running event in Longmont, CO on a 1.05 mile loop with distances from 5K to 100 miles and virtual options. Aid stations, finisher awards, and participant shirts are provided.

A loop race in Eagle, ID where runners repeat a 4.167 mile circuit each hour until only one continues. A separate 3 Loop Challenge offers fastest male and female winners and can count for the Idaho Trail Series.

A camp-style trail ultra on a two-mile loop at Horseshoe Bend Park near Frenchtown, NJ, with frequent returns to a central Base Camp, night markings, varied aid station food, and unique wooden finisher awards.

A 24 hour loop challenge at Moraine State Park featuring nearly perfect 10K laps on Pleasant Valley Hilltop and Sunken Garden trails. Each loop is about 6.2 miles with roughly 723 feet of vertical gain and on course aid stations.

A two-day cross country festival at Apalachee Regional XC Park in Tallahassee with nighttime collegiate, high school, middle school, and open heats, multiple distances, and team amenities including a coaches’ box and reserved areas.

Experience the trails of China Camp State Park with a selection of distances including a 5K 10K and Half Marathon. Participants enjoy a post race festival with beer steins custom medals and local snacks.

A three day trail event at Rock Cut State Park featuring a night 10 km plus 25 km and 50 km races, with single race entries and Triple Crown series options that award commemorative spike prizes to finishers.

A trail running weekend near Marquette, Michigan featuring a half marathon, 5K, 5 mile hike and a free 1 mile kids race along Lake Superior. Packet pickup at South Beach and Little Presque Isle; parking is limited.

A memorial climb at the Tower of the Americas in San Antonio on September 11, 2026, honoring 344 fallen firefighters, 70 law enforcement officers and nine EMS tags. Participation is open to first responders, military and civilians.

A point-to-point trail race around Emerald Bay in Lake Tahoe, covering about 7 miles / 11 km on mostly single-track terrain with moderate climbs, technical granite steps, scenic lake views, shuttle service, and standard race amenities.

Trail races at Douthat State Park featuring a roughly 13-mile loop used for a 50K, marathon, half marathon, and a six-mile race, with multiple aid stations, loop-based finisher rules, and limited field sizes.

A demanding 17.1 mile mountain trail race connecting Ouray and Telluride over the high altitude Imogene Pass. This event features steep rocky terrain and strict cutoffs for prepared athletes.

A ten mile trail race along the Pacific Crest Trail near Winthrop, WA with six self seeding waves and a free entry option for runners 17 and under who register and sign a waiver. Registration is limited and has an August 1 deadline.

A point to point trail event on the Mogollon Rim near Pine, Arizona, offering about 102 miles and a 42 kilometer race across varied, technical forest and Rim terrain with significant elevation gain.

Sterling Down & Dirty 5K is an annual family friendly obstacle race on Stratford Short Beach each September. Participants tackle more than 18 obstacles, join teams to fundraise for the Sterling Community Center, or volunteer on race day.