Trail Running calendar near Divide 2026-2027

At Fort Carson near Pike's Peak on May 30 to 31, 2026, Spartan offers multiple obstacle races at high elevation. Events range from a kids 1 to 3 km race to a 50 km Ultra and include a pre event workshop and spectator access.

A mountain ultramarathon near Denver offering 50 Mile and 50K options on mostly singletrack trails, passing 1996 burn areas, ponderosa pines, and granite formations. Part of the proceeds support the North Fork Volunteer Fire Department.

A rerouted edition of the Leadville Turquoise Lake 20K on May 30, 2026, covering 15.94 miles with 1,359 feet of gain around Turquoise Lake in Leadville, Colorado. Proceeds support local youth athletics and recreation.

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.

A four race trail series in Evergreen offering distances from 5K to half marathon across Elk Meadow, Alderfer, Staunton State Park and Bergen Peak. Events include vendor tents, rec trailer activities, and refreshments for participants and s..

A scenic *5 km* cross country race at the Leadville National Fish Hatchery on May 31, 2026, with dirt road, path and trail sections. Awards are given by age group and youth registration is free.

Trail race in Parker, CO with a steep stair incline and about 600 feet of climbing. The main event is roughly 10 kilometers and there is a one mile kids race, handicap starts, aid stations, awards, and volunteer opportunities.

Six trail races across Summit County, Colorado, in summer 2026. Series registration includes long and short course options with adult, youth, and non binary categories and events at multiple Summit County trail heads.

A looped trail ultrafestival in Mueller State Park on June 6 to 7 2026 offering 100 mile, 100k, 50k and 25k races on smooth single and double track. Aid stations are crew accessible and a night run takes place at sunset.

A community memorial event in Colorado Springs offering an in-person 5K, a virtual 5K with mailed shirts and medals, and a 1 mile kids dash. All proceeds are donated to local charities in Aiden's name.

Mountain ultramarathons in Colorado’s Wet Mountains that move from mossy fir forests and alpine meadows to dry pinyon and sagebrush terrain, with limited fields and large elevation change.

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 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.

Races on June 14, 2026, through the sandstone formations of Garden of the Gods Park in Colorado Springs. Options include a 10 Mile, two 10K races (road and trail) and a 2.9 mile Youth Classic; registration windows and fees vary.

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.

A three day Leadville training camp that walks and runs major sections of the Leadville Trail 100 course, pairs guided day and night runs with recovery and nutrition support, and includes panels, Q&A sessions and a provided running kit.

Trail races in Colorado Springs with 100K, 50K and 35K courses that start and finish at Rock Ledge Ranch in Garden of the Gods, featuring significant elevation gain, aid stations, and on course support.

Test your strength at this exclusive obstacle course event in Peyton featuring a three lap 3K race and a one mile kids run. Navigate rigs, rope climbs, and heavy carries in a small field of only fifty athletes.

A summer and early fall series of four half marathons and a 25K across Colorado in 2026, with options to enter three, four, or all five events; races include Estes Park, Georgetown to Idaho Springs, Mt Sneffels, Ned Ned, and Lead King Loop.

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.