Trail Running Calendar United States 2026-2027

A community run and walk in Brillion, Wisconsin honoring Mike Ariens with 10K, 5K and a Kids 1K fun run. Routes use local trails and conservation land, and participants receive shirts, medals and an ice cream treat at the finish.

A multi day timed trail event on a Winchendon farm using a roughly two mile loop. Runners choose from six hour day or night, 12 hour, 24 hour, or 48 hour formats under the Sturgeon Moon.

An evening trail 5k in Houston, MS on August 14, 2026, running the Witch Dance trails to support HHS Basketball; the event includes refreshments, food trucks and a DJ and has a $30 registration fee.

A non competitive two mile run in Window Rock, Arizona on August 14, 2026, honoring the Navajo Code Talkers. Registration includes a performance shirt, sticker, post race snacks and a poster option.

A Trifecta weekend of Spartan obstacle races at Dillingham Ranch on Oahu’s North Shore, with Sprint, Super, Beast, Ultra and Kids races across beach, ridge and jungle terrain. An obstacle workshop and spectator options are included.

A timed loop endurance event at Lincoln Park in Seattle on August 15, 2026 offering 3, 6, 12 and 18 hour formats plus kids races, team competition, cupless aid stations, food options and awards by total mileage.

A mid-August trail running weekend in Grandview, Tennessee with looped races from one hour to 24 hours, free tent camping and a glamping auction; proceeds support Flying Pigs Sanctuary.

Trail races at Rocky Branch Park in Belmont NC on August 15, 2026 include 50K, 25K and 5K options. The looped course is marked, offers staffed aid stations with varied food and drink, and awards a handmade pottery finisher medal.

A two day mountain trail running weekend at Mt. Hood Meadows with alpine courses reaching 8,000 feet and distances from a .75 mile kids run to a 50 mile race. The 50K is the 2026 USATF 50K Trail National Championship.

A trail race in Elkridge, MD on August 15, 2026 offering 25K and 50K on rolling single track with river crossings, aid stations, and a post-race gathering with beer and food.

Trail races at Malibu Creek State Park on August 15, 2026 feature a 50k and 25k through the Santa Monica Mountains with steep climbs, ocean views, multiple fully stocked aid stations, and an announced prize purse plus finisher medals.

Tartarus Backyard Ultra is a last person standing running and rucking event at Camp 7, Riverside State Park on August 15, 2026. Competitors complete repeated loops with a one hour cutoff per lap until one runner and one rucker finish a fina..

A mountain trail race in Alta, Utah covering 7.1 miles and about 2,545 ft of vertical gain, capped at 500 runners. The route climbs to Mt Baldy with aid stations and marked alpine terrain.

Run the scenic Medicine Bow Rail Trail and Lake Owen at high elevation in Wyoming's national forest. This event offers both marathon and half marathon distances, all on a historic pathway. The 2026 edition is scheduled for August 15.

A trail event in Columbus Georgia on August 15, 2026 offering 25K, 50K and 50 mile options along the Fall Line Trace and RiverWalk, with Southern-style aid stations and a 100 runner field cap.

Bad Dawg Ultra is a multi distance endurance event August 15–16, 2026 near Waynesville, Missouri, run on a 10 mile out and back loop through Ozark gravel and hills. Distances range from 12 miles to 100 miles with aid stations and on site ca..

A Scottish Highlander themed obstacle race in Pingree Grove Illinois offering open and competitive 5k and 15k heats plus a family 3k. Night and haunted 5k variants are offered and finishers receive a medal and t shirt.

An obstacle and mud focused 5K at Village Creek Motocross Park on August 15, 2026, featuring mud pits, walls, ropes and 11+ obstacles, plus pre race and post race festival areas, packet pickup, vendors and on site parking.

Test your endurance at the Tuff Enuff Trail Run in Woodway Activity Park. Part of the Huaco Cuatro Series, this event offers scenic 5K and 10K courses alongside a flexible virtual option for all participants.

A multi-distance trail race festival in the Olympic National Forest near Quilcene, WA offering 100K, 50K, 25K, 10K and ruck divisions with significant elevation, mostly single-track courses, staffed aid stations and on-site camping.