Trail Running calendar near Billings 2026-2027

Paired 5K paved loop and 10K mountain trail at Rockland Lake State Park in Valley Cottage, NY. The 5K is a flat, fully accessible lake loop; the 10K climbs about 1,300 ft on rocky, steep terrain and includes one aid station.

A mountain running event in Roxbury, NY on June 7, 2026 featuring a 6.5 mile race with 3,500 feet elevation and a 5k with steep early gain and a downhill finish. Awards go to the top three men and women in each race.

Experience an empowering 5k obstacle mud run designed for women at Dorothy P. Flint 4-H Camp. Support sisterhood and breast cancer awareness while navigating a fun and muddy course in Riverhead.

A trail 5K in Shirley Chisholm State Park, Brooklyn on June 7, 2026, organized by Black Men Run NYC. Registration is free with an optional $25 singlet; registration opens March 31 and closes June 4.

A trail half marathon on June 7, 2026 at Ward Pound Ridge Reservation in Cross River NY that passes the summit where the fire tower is being reconstructed. The event includes a 10k and raises funds for the Friends of the Fire Tower.

A community event at Stanley Park on June 7, 2026 featuring a 5K trail run or a one mile accessible route. Proceeds support renal medullary carcinoma awareness and related programs.

A flat, non technical trail 5K at Schodack Island State Park on June 7, 2026, with kids races, post race music and a BBQ. Entry fees rise by registration period and kids races cost five dollars each.

A weekly cross country series offering thirteen 5K races on Tuesday nights from April to July. The event takes place at Central Park in Parsippany and is open to all ages and abilities. Participants can register for the full series or pay f..

Experience a day of trail running and mountain biking at the Norbrook Farm Brewery Trail Festival. Enjoy multiple race distances, local food trucks, and rewards at this scenic Connecticut brewery.

Experience a 5K trail and obstacle run featuring 24 challenges across a 400 acre campus in Wallingford. This inclusive community event supports adaptive sports programs through a mix of wooded trails and open fields.

Experience a scenic evening run on a flat paved loop around Rockland Lake. This chip timed half marathon features sunset views, frequent aid stations, and custom finisher medals only 45 minutes north of NYC.

A six hour timed trail run at Ansonia Nature Center in Connecticut, raced on repeated 1.9 mile counterclockwise singletrack loops with about 170 feet of climb per loop. Entry is limited to 69 runners and refunds are not offered.

Trail race options of 50k, 30k and 10k around Edge Hill Conservation Area in Ashfield Massachusetts, run on single track and dirt roads. The event partners with Franklin Land Trust and supports habitat restoration and land conservation.

Turf Wars 2026 is a Tone House multi-zone athletic challenge at Chelsea Waterside Park in New York on June 13, 2026. Competitors face three timed zones and a Wild Card in Individual, Doubles, or Team divisions, with medals, prizes, and an a..

The 5th Annual iBE-FiT 5K Invitational at Van Cortlandt Park offers an in-person 5K and a virtual 5K option, a two-loop course with flats and hills, medals for all finishers, and proceeds supporting local community programs.

A trail 5K and 10K at Pleasant Valley Wildlife Sanctuary on June 13 featuring mixed single-track and carriage-road terrain, water stations, finish-line food and music, and proceeds supporting local conservation.

A community event at Camp Edey on June 13, 2026 featuring a 5K run/walk and a 1 mile family walk, Family Day activities, race amenities, and age-group awards to benefit Girl Scouts of Suffolk County.

A community 5K trail run, walk and hike in Eisenhower Park Milford on June 7, 2026 supporting the Milford Rotary and the Beth El Center. The course uses a high school cross country route with mostly flat sections and some rolling hills.

A weekly cross country series offering thirteen 5K races on Tuesday nights from April to July. The event takes place at Central Park in Parsippany and is open to all ages and abilities. Participants can register for the full series or pay f..

A 53 mile ultramarathon across the Catskills with 15,000 feet of elevation, technical terrain, nine aid stations and a 23 hour limit. The course runs from Windham to downtown Phoenicia and emphasizes self sufficiency without pacers.