Event details subject to change. Please confirm all information via event website.
Week of Events
Great Divide Ultra
Great Divide Ultra
Experience the spring-fed meadows, massive rocks of Pikes Peak granite, and sweeping views of Colorado’s most spectacular mountains in the Great Divide Ultras. This Colorado early season 100m, 100k, 50k and 25k trail ultra takes place entirely on the beautiful rolling meadows of Mueller State Park. The beautiful looped course is 100% smooth single/double-track trail. […]
Deadwood Mickelson Trail Marathon
Sunday, June 7, 2026
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June 7, 2026 -Colorado 13er
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Featured June 7, 2026Featured Steamboat Marathon
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June 7, 2026 -RMRR Bible Park 4K
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Featured June 7, 2026 -Featured Flamingo Day 5K
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June 7, 2026 -Walk to Cure Arthritis
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June 7, 2026 -Vitality Walk
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June 7, 2026 -The 80’s Run
Colorado 13er
The Colorado 13er is THE event where the best parts of trail running and road racing combine to create a truly enjoyable, kind-to-your-body, well-supported 13.1 race! Seasoned runners and first-timers alike appreciate the excellent communication from the 13er race crew who make this event accessible for athletes of all levels.
Steamboat Marathon
Run alongside the roaring Elk River through the emerald green pastures on Country Road 129 with the snow-capped Rocky Mountains of Colorado all around and find out why the Steamboat Marathon was ranked as one of the “Top 10 Destination Marathons in North America.” Marathon, Half-Marathon, and 10K
RMRR Bible Park 4K
Everyone – slow, fast, or in-between – can win at RMRR Trophy Series races. With our handicap scoring system, we predict YOUR finish time based on recent running results, giving you a great goal to shoot for whatever your speed. Just show up an hour before the start and we’ll get you ready for your race. It’s an […]
Walk to Cure Arthritis
Together, let’s walk to a lifetime of Yes! Yes, to finding solutions, better treatments and a cure. Whether you have arthritis yourself or care about someone who does, sign up and raise funds for WALK to CURE Arthritis!
Vitality Walk
Your participation in Vitality Walk helps Parkinson Association of the Rockies (PAR) push boundaries and invest in programs and services that are a lifeline to those with Parkinson’s, their Care Partners, and their families. 100% of the proceeds stay in communities throughout Colorado and Wyoming to help us provide free services, including: assessments, 50+ support […]
The 80’s Run
THE 80s Are back! Are you ready? Then grab your old Nikes, Leg Warmers and Parachute Pants or SHORT shorts!
Monday, June 8, 2026
No events on this day.
Tuesday, June 9, 2026
No events on this day.
Wednesday, June 10, 2026
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June 10, 2026Boulder Stroke & Stride II
Boulder Stroke & Stride II
The Boulder Stroke & Stride offers Boulder area athletes a fun 1-lap 750 Meter Swim, or 2-Lap 1500 Meter swim in Boulder Reservoir, followed by a 5k run on the reservoir dam. Stroke & Stride happens weekly on Thursday nights throughout the Summer from June 4th to August 6th WITH THE EXCEPTION OF Thursday June […]
Thursday, June 11, 2026
No events on this day.
Friday, June 12, 2026
No events on this day.
Saturday, June 13, 2026
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June 13, 2026 -Barr Lake Trail Race
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June 13, 2026 -All-Out Summer Breeze
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June 13, 2026 -Ironman 70.3
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June 13, 2026 -Treat Trot
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June 13, 2026 -Jodi’s Race for Awareness 5K
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June 13, 2026 -Miles for Melanoma 5K
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June 13, 2026 -CMRA John Meade 6K
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June 13, 2026 -Stepping Stone 5K
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June 13, 2026 -San Juan Trail Tri
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June 13, 2026 -Howelsen Hill Trail Run
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June 13, 2026 -Springs Downhill Mile
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June 13, 2026 -Vitality Walk
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June 13, 2026 -Vitality Walk
Barr Lake Trail Race
The Barr Lake Trail Race returns to Brighton, CO, offering beautiful lake views and a prime opportunity for new PRs. Now in its sixth year, this event features our flattest and fastest course, with less than 100 feet of elevation gain per loop. Starting and finishing at the Nature Center, runners will enjoy a scenic […]
All-Out Summer Breeze
From the heart of the West Metro area and the Stenger Soccer Complex, All-Out brings you our 11th annual Summer Breeze! Along with its Endless Series sidekick in January Polar Prowl, these 5K, 10K and half marathon courses will follow Van Bibber Creek Trail west through Arvada's open spaces with spectacular views of the countryside […]
Ironman 70.3
Boulder has been a household name in the world of triathlon for decades. This endurance community has built a reputation among triathletes for training hard, racing fast and enjoying every mile of scenic beauty along the way. But what makes this town really special, are all the adventures that await you after race day. Sunrise […]
Treat Trot
5k/10k/15k registration includes a custom bib, designer shirt, and a custom finisher medal! 1 Mile registration is untimed and includes a custom bib, designer shirt, and a custom finisher medal! The kid's dash is a fun, untimed dash for our kiddos ages 10 and under. Registration includes a mini bib, youth-sized shirt, and a specifically […]
Jodi’s Race for Awareness 5K
Join the Colorado Ovarian Cancer Alliance on June 11th at Denver's City Park for Jodi’s Race, the 2nd largest ovarian cancer run/walk in the country, and to help raise awareness of the signs and symptoms of ovarian cancer. The family friendly event includes a 5K Run/Walk, 1-mile walk, Family Fun Zone, Furry Friends, Expo and Survivor Breakfast.
Miles for Melanoma 5K
The Melanoma Research Foundation would like to welcome you to the 2022 Denver Miles for Melanoma 5K! This annual signature event will bring together local melanoma patients, survivors, care partners, supporters and healthcare heroes to fundraise and help continue the fight against melanoma.
CMRA John Meade 6K
We will start with a loop of John Meade Park before heading onto the Cherry Hills Trail for an out-and-back short cirtcuiting the initial loop. This race will be ~3.875 miles (6k) with the same course for walkers and runners. ~115ft. The course is nearly all trail or gravel path with 0.2 miles of paved […]
Stepping Stone 5K
Stepping Stone Support Center and Trailhead Community have come together to present this amazing event to benefit adults with developmental disabilities. Complete two laps of Johnson Reservoir at Clement Park for the 5K or take the cutoff after one lap for the untimed Shortcut.
San Juan Trail Tri
Dash, Paddle, Pedal in beautiful Ridgway State Park. Our trail tri includes a 4 mile trail run, 1.5 mile paddle (SUP) & 8.5 mile mountain bike ride. Team and individual divisions.
Howelsen Hill Trail Run
Let the trail races begin!! This is a challenging trail run on the scenic single track trails of historic Howelsen Hill, Steamboat’s outdoor playground. The trails of Emerald are beautiful this time of year with abundant aspen trees and wildflowers. Distances: 8 mile and 4 mile
Springs Downhill Mile
How fast can you run a mile? What if you got to do it on a downhill? We are partnering with RunMental to bring you the second annual Springs Downhill Mile on June 17th at North Monument Valley Park.
Vitality Walk
Your participation in Vitality Walk helps Parkinson Association of the Rockies (PAR) push boundaries and invest in programs and services that are a lifeline to those with Parkinson’s, their Care Partners, and their families. 100% of the proceeds stay in communities throughout Colorado and Wyoming to help us provide free services, including: assessments, 50+ support […]
Vitality Walk
Your participation in Vitality Walk helps Parkinson Association of the Rockies (PAR) push boundaries and invest in programs and services that are a lifeline to those with Parkinson’s, their Care Partners, and their families. 100% of the proceeds stay in communities throughout Colorado and Wyoming to help us provide free services, including: assessments, 50+ support […]
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