Friends of First Responders 5K/10K

Hudson Gardens and Event Center 6115 S Santa Fe Dr, Littleton, CO, United States

The Colorado Friends of First Responders (CFoFR) annual 5/10K Memorial Event is dedicated to the memory of those who lost their lives on the scene of an AirLife Denver medical helicopter crash that occurred in 1997. This event keeps their memories alive, while also supporting the mission of Colorado Friends of First Responders (CFoFR), and […]

Vallecito Lake Heavy Half

Vallecito Lake 17454 Co Rd 501, Bayfield, CO, United States

The Vallecito Lake Heavy Half Marathon is a beautiful and scenic course around Vallecito Lake. Nestled in the heart of the San Juan Mountains in Colorado, our race course takes runners completely around the picturesque Vallecito Reservoir with a special section that runs right across Vallecito Dam. If you ever wanted to run all the […]

Women’s Distance Festival 5K

North Monument Valley Park 1794 Culebra Ave., Colorado Springs, CO, United States

The Womens’ Distance Festival is no longer an event for “women only”. This event is now a “community” event, supporting the Girls on the Run® of the Rockies. Girls on the Run is a non-profit organization that uses the power of running to change the way girls ages 8-13 see themselves and their opportunities. Girls […]

Heart & Sole Half Marathon

Boulder Reservoir 5565 N 51st St, Boulder, CO, United States

On Mother's Day, May 12th, 2024 the Heart & Sole Mother's Day Half Marathon, 10K and 5K returns to Boulder County! We will have so many amazing opportunities at this event. In this year's edition of the Heart and Sole races, brought to you by locally-owned 303 Running, we're excited to host many Mother/Daughter and […]

Head and Neck 5K

Carpenter Park 3498 E 112th Ave, Thornton, CO, United States

Get ready for a 5K & 2-Mile walk that begins and ends at the beautiful Carpenter Park. Participants can join us for an in-person run or walk run on their own time with our virtual option. All participants who register by the shirt cutoff date will get a popular soft-style t-shirt! Head & Neck cancer […]

Fruita Trail Half Marathon

18 Road 18 Road, Fruita, CO, United States

This exciting half marathon course is a fun loop on the beautiful flowy single track in Fruita CO. With short steep climbs and descents featuring beautiful views of the nearby buttes and mesas runners will enjoy 13.8 miles of gorgeous open early season desert. This race is part of the Adventure Fest at 18 Road […]

$105

Frank Shorter Track Classic

Niwot High School 8989 Niwot Road, Niwot, CO, United States

The Frank Shorter Track Classic is a track meet honoring one of America's greatest distance athletes. Each year, we will celebrate Frank's career, his devotion to the sport of running and promotion of health and fitness, while also acknowledging a different Boulder Olympian. This year's meet will take place on May 21st at Nevin Platt Middle School in Boulder.

Dash & Dine 5K

Boulder Reservoir 5565 N 51st St, Boulder, CO, United States

The Dash & Dine 5k run, Boulder’s favorite spring tune-up run series is back for 4 races on Tuesday nights in April & May at the beautiful Boulder Reservoir in Boulder, CO. Run A great event for runners of all ages and abilities. This family-friendly 5k out-and-back course follows the roads and dams on the […]

$30

Summit Trail Running Series I

Flumes Trail 213 Huron Rd, Breckenridge, CO, United States

Explore the trails of Breckenridge this summer with the 23rd annual Summit Trail Running Series with each race followed by a post-race party! The Series consists of 5 trail races in and around Summit County, May-July. Each race features a short and long course, and all races are open to runners of all abilities ages […]

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