Trail Running Calendar United States 2026-2027

Hell Mary is a timed endurance event on a 1 mile flat loop in Watertown, TN with multiple time divisions and a new 12 hour night option. Participants use assigned 10 by 10 aid areas and no aid is allowed on the loop.

Experience a rugged night trail run on a private ranch in Gilmer, Texas. Navigate single track trails and creek crossings under the stars with distances ranging from a 5K to a 50K ultra.

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.

The 2nd Annual McDonough Trail Race in Vienna WV uses a scenic 4 mile loop through forests and duck marshes with up to 430 feet elevation gain per loop. Runners do two laps and walkers one; the race is part of the River City Runners and Wal..

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 running event in Orlando on 2026-07-18 featuring a half marathon, 10K, 5K, shorter youth races, relay and a virtual option with mailed packets and race swag.

A trail ultra at Great Bear Ski Valley near Sioux Falls offering 20k, 30k, and 50k distances on a roughly 10k loop with significant elevation gain and aid at the loop start and finish.

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 loop event at Route 66 State Park in Eureka, MO. Runners complete measured 2.425 mile loops and 0.333 mile short loops within 3 hour or 6 hour limits with cupless aid and required lights for night running.

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.

A running event at Charlestown Park offering a five person relay and a solo ultra challenge on a roughly 2.2 mile loop. Teams and solo runners compete to cover the greatest distance with cash awards for top finishers.

A multi-sport relay event at Kroger Field in Lexington that raises funds through TeamRaising and donations to help cancer patients with needs such as gas, hotels, and meals.

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, limited to 1,500 entrants. Waves of 25 start every five minutes and packet pickup includes a shirt, custom medal, bib and beverage ticket.

A 12-hour loop event in Lawrence Woods within the Middlesex Fells Reservation near Medford, MA. The course is an approximately five mile loop with a minimal aid station; participants commonly set up personal spots near the start and aid are..