Trail Running Calendar United States 2026-2027

Tiger Trail is a series of 5K events on July 18, 2026 at Lawrenceburg Trail in Lawrenceburg, Indiana. It is organized as SIRC 3, a fundraiser for the Lawrenceburg cross country team, with separate fees and registration dates.

A July 18, 2026 Bozeman event offering a **10-mile** trail loop with 2,838 feet of climbing and a **5 km** rolling dirt road fun run, plus a post-race BBQ, beer, and raffle prizes.

Join this cross country community event in Santa Fe featuring 5K and 10K trail races. With specialized high school team divisions and free races for children of all ages, it is a comprehensive day of running for everyone.

A two lap trail event at McDonough Wildlife Refuge in Vienna WV on July 18, 2026. The course is a 4 mile loop through forest and duck marshes with up to 430 feet elevation gain per loop and at least two aid stations.

High-altitude trail races on Vail Mountain offering 10K and 5K courses that start near Gondola One, feature singletrack and gravel sections, on-course aid stations, post-race refreshments, and age-group awards.

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.

Trail ultramarathon at Great Bear Ski Valley near Sioux Falls, SD offering 20k, 30k and 50k on a 10k loop with about 1200 ft climb per loop. Multiple loops make each distance and an aid station is available at the loop start area.

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 hour and 6 hour loop races on a measured 2.425 mile course through shaded trails at Route 66 State Park. Cupless event with main aid at Forest Shelter and required 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 ultramarathon on the southern Massanutten range with about 5,700 feet of elevation gain, six aid stations, and a post run gathering at the Route 211 commuter parking lot. Entry is limited to 75 runners.

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.

An overnight relay event at Kroger Field in Lexington offering marathon, double marathon and 12 hour ultra relay options. Proceeds support cancer patient care and the event is cupless, so participants should bring their own cup.

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 18 July 2026, with waves of 25 released every five minutes and entry capped at 1,500. Packet pick-up includes a shirt, medal, bib and a post-race beverage ticket.

A 12-hour timed trail event in Lawrence Woods, Medford, featuring a roughly 4-mile loop, minimal on-course aid, and parking at a nearby high school lot. The start and aid station are located in the woods about a quarter mile from parking.

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 near Honey Creek, Iowa featuring a 5K trail run and a 2.2 mile nature hike. Proceeds support a terrain park tow rope and expanded four season recreation.