Trail Running calendar near Billings 2026-2027

Join the XC Summer Series, a friendly weekly cross country 5K on Tuesday nights in Parsippany from April 28 to September 1, 2026. All ages and abilities welcome, walkers included, with chip timing and after race refreshments.

Join the XC Summer Series, a friendly weekly cross country 5K on Tuesday nights in Parsippany from April 28 to September 1, 2026. All ages and abilities welcome, walkers included, with chip timing and after race refreshments.

A multi day endurance series at Mohawk Mountain in Connecticut offering solo and team trail events from 15 to 152+ miles with timed formats up to 84 hours. Tenting, support stations, and personalized bibs and medals are provided.

A point-to-point ultramarathon on the New England Trail offering 112-mile and 50-mile options to Guilford. Entrants must make a donation to the Connecticut Forest and Parks Association and arrange their own crew and navigation.

A scenic 10 km run starting and finishing at historic Rockwood Hall in Rockefeller State Park Preserve. The event includes a separate kids race for ages 12 and under and directs proceeds to carriage road maintenance.

Plattekill Mountain Race on June 7, 2026 in Roxbury, NY features a 6.5 mile mountain race with 3500 ft of climbing and a steep 5k. Top three men and women will receive awards and finisher swag is planned.

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.

Join the XC Summer Series, a friendly weekly cross country 5K on Tuesday nights in Parsippany from April 28 to September 1, 2026. All ages and abilities welcome, walkers included, with chip timing and after race refreshments.

A trail festival at Norbrook Farm Brewery in Colebrook CT with running, mountain bike races and a run and bike duathlon. Courses include a 5K runnable loop and a 5 mile bike loop with eight trails and 658 ft of climbing.

A six hour trail run at Ansonia Nature Center on June 13, 2026, run as counterclockwise loops of about 1.9 miles on moderately technical singletrack with roughly 170 feet of gain per loop. Entry is limited to 69 runners.

Explore the hill towns of western Massachusetts on a mix of trails and dirt roads. Choose from a 50k, 30k, or 10k distance, with all proceeds supporting the Franklin Land Trust's conservation efforts at the scenic Edge Hill Conservation Are..

A trail running event at Mansfield Hollow State Park offering a 15.7 mile out-and-back on the Nipmuck Trail and a new 5K course entirely inside the park. Proceeds support Connecticut trail stewardship groups.

Join the XC Summer Series, a friendly weekly cross country 5K on Tuesday nights in Parsippany from April 28 to September 1, 2026. All ages and abilities welcome, walkers included, with chip timing and after race refreshments.

Manitou's Revenge is a 53 mile ultramarathon across the Catskills with about 15,000 ft of climbing, rocky and steep terrain, limited aid stations, and long self supported stretches between services.

XTERRA Transcend Trail Run, June 20 2026 in Randolph New Jersey, features 21K, 10K and 5K trail races at Dickerson Mine Preserve and serves as a qualifier for the 2027 XTERRA Trail Run World Championships.

Early morning trail run in Gay City State Park offering 3, 5 and 8 mile races. The 8 mile is part of the Blue Blazed and USATF CT MUT series and includes teams of three competing for prize money.

Join the XC Summer Series, a friendly weekly cross country 5K on Tuesday nights in Parsippany from April 28 to September 1, 2026. All ages and abilities welcome, walkers included, with chip timing and after race refreshments.

Twelve hour timed run on a 4.25 mile loop with about 500 feet of gain per loop in Hamden, CT. Options include marathon via six loops, 50K via eight loops, and a 50 mile target; proceeds support the Brooksvale Gift Fund.

Join the XC Summer Series, a friendly weekly cross country 5K on Tuesday nights in Parsippany from April 28 to September 1, 2026. All ages and abilities welcome, walkers included, with chip timing and after race refreshments.

Trail racing at Red Wing Recreation Area with 15K, 30K, and 60K options on a 15k loop featuring varied terrain, aid stations, lap support for 60K runners, and post race food and drinks.