Trail Running calendar near Jackson County 2026-2027

Run Like the Wind in Allenspark on August 29, 2026 features a 5K race, a 2K run/walk and a dog jog option. Proceeds benefit The Old Gallery and participating dogs are entered in an amateur dog show.

Multi-day ultrarunning event in Loveland, Colorado on a 2 mile loop with time-based options up to 100 hours and distance races to 200 miles. Continuous aid, chip timing, and camping are available.

A mountain trail race at Arapahoe Basin on September 5, 2026 covering 9.4 miles and 2,211 ft of vertical. The marked course uses established trails in White River National Forest and finishes in Mountain Goat Plaza with live music and food.

Experience a high altitude trail run starting at 10,000 feet on Rabbit Ears Pass. Runners navigate a mix of forest roads and single track trails with 1,200 feet of elevation change through scenic Colorado terrain.

A multi-distance running event on a flat 1.05-mile loop in Longmont, Colorado, held September 11-12, 2026, honoring 9/11 with in-person and virtual options, race awards, on-course aid, and overnight food service.

A longstanding Nederland, Colorado running event offering a 5K road run, a 10K trail, and a trail half marathon, with family-friendly features, on-leash dogs allowed in the 5K, and costume encouragement.

A high altitude trail event in Granby, CO offering 50K, 33K, half marathon, 10K and 5K courses on dirt trails with measured elevation gain and support stations.

A 13.5 mile trail half around Lory State Park near Fort Collins with about 2,000 feet of climb, marked singletrack, aid stations, and a free one mile kids race.

Trail ultramarathon in Empire, Colorado on September 12, 2026 offering point to point 50K and 22K courses. High altitude routes reach over 13,000 feet and prior ultra or high altitude trail experience is required or recommended.

A trail race on Meadow Mountain in Minturn, Colorado offering an 11K and a 5K route across singletrack and meadows with stream crossings, scenic mountain views, on-course aid stations, and finish-line t-shirts and refreshments.

A mountain road race in Jelm, Wyoming with a 10 mile out and back on jeep roads and a 50k that repeats the loop three times. The course gains over 2,000 feet and reaches the Infrared Observatory above 9,600 feet.

Run Rabbit Run in Steamboat Springs, Colorado is an annual trail ultramarathon offering 100 mile (Hares and Tortoises) and 50 mile divisions, limited-field races with a six-figure prize purse and a history of charitable giving.

Experience the wild spaces of Northern Colorado with a weekend of trail races ranging from a half marathon to a 50 mile ultra through scenic forests and scout camp trails. Stay on site with available camping and community meals.

A two-day trail and bike event in Estes Park featuring 31-mile bike and run options, a 15-mile heavy half, and a 62-mile duathlon, with rugged trails, significant climbs, and aid stations supporting competitors.

A point to point trail race from Vail to Minturn with 26K and 14K courses across Vail Mountain. Both routes feature alpine singletrack, scenic views of Mt. Holy Cross, staffed aid stations and a post race lunch voucher.

Experience the scenic single track trails of Steamboat Springs during the Emerald Mountain Trail Run. Choose between the 4 mile or 12k distances through aspen groves to support the local Boys and Girls Club.

Trail marathon and half near Fort Collins along redstone singletrack and technical rock sections, with stocked aid stations, drop bag options, and caps of 400 entries per distance.

MonsterDASH Louisville on Oct 25, 2026 offers a new half marathon plus 5k, 10k and a kids mile with costume contests, expo, and themed runner perks.

Timed 6-, 12- and 24-hour running and relay events on a certified 1.0002 mile dirt loop at Colorado Youth Outdoors Swift Ponds in Fort Collins, with full-service aid every lap and locker-style lodge support nearby.

Trail races in Louisville, Colorado offering half marathon, 10 km and 5 km courses on mostly dirt trails with views of the Flat Irons. The event includes aid stations, drop bag access, finish-line support and post-race festivities.