Trail Running calendar near Bellvue 2026-2027

Trail races at the YMCA of the Rockies in Estes Park on May 23, 2026 offer 50k, 25k and 10k options. The course centers on a 10 km loop with a 1,200 ft climb at Bible Point and two staffed aid stations.

Test your endurance at this Golden Colorado event following the classic backyard format with 4.17 mile laps every hour. Support the Sun Valley Kitchen and Community Center while pushing for your personal best distance.

A multi distance running festival in Eaton, Colorado on May 30 to May 31, 2026 offering races from 7K to 100 Mile plus relay and timed events. The venue uses a 2 mile groomed loop and provides glamping and onsite amenities including sauna a..

A community trail race near Laramie offering a classic 25K over rugged two-track and single-track to an 8600 ft summit, plus a new 10K. The event is cupless with aid stations supplying water, Skratch, and snacks.

A 10k trail race in Elk Meadow Park near Buchanan Park Recreation Center in Evergreen, CO, featuring a rolling-hills course, vendor tents and refreshments. The event is cup-free with water refills at the start and finish.

Experience the Rocky Mountains at Granby Ranch Resort with distances ranging from 6 miles to a 14 hour elevation challenge. Runners navigate single track trails through aspen groves and alpine meadows with views of the mountain range.

A multi distance off road running festival at Luvin Arms Animal Sanctuary near Erie, Colorado. Events include 5k, 10k, 50k, 50 mile and multiple timed runs while supporting the sanctuary.

A final edition trail race at Devil's Backbone Open Space in Loveland, Colorado featuring a looped 10k+ course, a staffed water stop near 3 miles, flour-arrow markings, informal stick-based placings, and an awards gathering at Loveland Alew..

A looped trail race at Barr Lake State Park near Brighton, Colorado, offering 5K through 50K distances on dirt trails with continuous lake and Front Range views. Courses feature low elevation gain per loop and varying aid station coverage.

A four-race running series in Winter Park, Colorado, from June 14 to August 22, 2026. Events range from a family 5K to half marathons and are scored by a points system with Open Men and Open Women categories.

Muddy Dash in Denver is a 5K mud run at Colorado National Speedway on June 20, 2026, featuring obstacles, mud pits no deeper than waist level, a pre-party with music, and an after-party with food and beer. Family friendly with standard and..

A one-day festival in Lyons on June 20, 2026 that combines gravel and road bike rallies, several trail runs, live music, camping and on-site pools. Featured formats include a 100K enduro, a 50K rally and a 5 mile run.

A community-focused trail festival in Gold Hill, Colorado, with 28K, 12K, 5K and Kids 1K races, a shuttle from Boulder, and proceeds supporting wildfire preparedness for the town.

Timberview Trail Run on June 27, 2026 at Lory State Park in Bellvue Colorado offers three trail distances: 5K, 5 mile and 10 mile. Courses run among treetops with views of Horsetooth Reservoir and Fort Collins.

Chase the Moon is an overnight fixed time trail event in Highlands Ranch, Colorado with solo 12, 6 and 3 hour races, a 50K and three and five person relays. Runners complete marked loops on dirt trails with aid stations and drop bag support..

A backyard ultra on the paved Lake Estes trail where runners complete 4.252 mile loops each hour until one runner finishes a loop alone. The event records yards for DNFs and offers on-site aid and athlete village space.

Experience a half marathon in the mountains of Nederland Colorado. This event features a significant elevation gain of 4226 feet with the summit always in view.

Alderfer 5K Trail Race at Alderfer Ranch in Evergreen Colorado is a 5 km trail event with shuttle service from Wulf Rec Center. The course is cup free with no aid stations, and water and refreshments are available at the venue.

A 5K run/walk in Winter Park, Colorado following the Fraser River Trail from Gondola Plaza to the Rendezvous Event Center, with an after party featuring refreshments, awards and prize giveaways.

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.