Trail Running Calendar United States 2026-2027

A mountain trail event on July 18, 2026 featuring 10K and 5K courses on Vail Mountain. Courses were rerouted for 2026 and include aid stations, high-altitude terrain, age-group awards, and post-race refreshments.

A memorial 5K run and walk at Owen Bell Park in Dayville CT that raises funds for a scholarship for Killingly Ag-Ed seniors. The day includes a 5K, a walk, and a kids fun run on off-road paths with possible trip hazards.

A multi-distance event at Blue Jacket Memorial Park offering in-person and virtual options, chip-timed 5K/10K/half distances, youth pricing, participant shirts and medals, free photos, and finish-line ice cream.

A trail ultra at Great Bear Ski Valley near Sioux Falls offering 50k, 30k and 20k on a roughly 10k loop with nearly 1200 ft of elevation gain per loop. Aid station and drop bags are at the Bear Den.

Repeating 2 km out and back laps on the Thumb Open Space trail in Estes Park. Participants collect a poker chip at each turnaround and the most chips wins during a sunup to sundown timeframe; 35 spots and a $100 entry fee.

Timed 3- and 6-hour loop races at Route 66 State Park near Eureka, MO on a measured 2.425-mile course with a 0.333-mile short loop. Cupless aid at the Forest Shelter; runners must bring hydration and lights.

Trail races in Hartford, Vermont, through the Hartford Town Forest and Conservation Area. Courses mix logging roads, packed trails, and single track, with a 5K mostly downhill and a 10K that earns Western NH series points.

A roughly 50 km trail run on the Massanutten range with 5,700 feet of climb, six aid stations (two water only), varied terrain and scenic overlooks, finishing with a post-run gathering at the Route 211 commuter lot.

A 5K run/walk along the Bear River in Petoskey, Michigan, featuring a footbridge and riverside gravel trail with a shaded final mile; proceeds support the Northern Michigan Cancer Crusaders and awards are given by age division.

Loop running at Charlestown Park with a team 4 Hour Relay and a solo 4 Hour Ultra Challenge. Teams of five rotate on a roughly 2.2 mile loop while solo runners complete as many laps as possible; cash prizes awarded.

Overnight running relays and ultramarathon events at Kroger Field in Lexington on July 18 to 19, 2026 raise funds for cancer patient support care. Options include marathon relays, a double marathon relay, a 12 hour ultra, and a survivors wa..

A 100-minute looped running event at Williams Park in Gibsonburg where laps are recorded on a 0.9 mile loop. Entry is $25 and proceeds support a local foundation; all finishers receive awards and post-run food is provided.

A roughly 3 mile obstacle trail run at Joint Base Lewis-McChord on July 18, 2026, with timed wave starts, race packets including shirt and medal, and a post-race beverage and music.

A 12 hour loop run in Lawrence Woods, Medford, MA on July 18, 2026. The roughly four mile loop has minimal aid and space for participants to set up personal stations near the course.

A free one-day trail event on 07/18/2026 at Sweet Pine near Browning, MT, featuring 10K, 5K and 1-mile races with registration open 2026-06-14 to 2026-07-18; some races list an 8-year minimum age.

A midsummer trail event at Crescent Hill at Hitchcock on July 18, 2026 offering a 3.1 mile trail run and a 2.2 mile nature hike through the Loess Hills with costume awards and eco friendly medals.

A family friendly fun run at Lubbock Lake Landmark with 5K and 3K options along a caliche gravel trail through Yellow House Draw. Drinks are provided and registrants receive a free event t shirt.

A community trail event at JCC Ranch Camp on Saturday July 18 offering 5k and 10k trail options, sliding scale entry, on course water and clinic support, plus post-race tie dye and craft activities for finishers.

A night trail race at Tyler State Park on July 18, 2026, offering distances from 5K to 50K plus a 13K ruck. Single track pinewood trails, required headlamp and water carrying, with aid stations on a short loop.

Seventh annual trail races at Faylor Lake in Beaver Springs with 3.75 mile and 7.5 mile courses that cross dam, timber, field and shallow lake water. Postrace food and lake activities are available and proceeds support youth conservation pr..