Event details subject to change. Please confirm all information via event website.
Week of Events
Sunday, July 27, 2025
-
July 27, 2025 -Dash for Smiles 5K
Dash for Smiles 5K
Dash for Smiles was created by three mothers of cleft affected children. This is the 15th annual 5K walk/run to raise awareness and to benefit cleft lip and palate programs at Children's Hospital Colorado and Rocky Mountain Hospital for Children.
Monday, July 28, 2025
No events on this day.
Tuesday, July 29, 2025
-
Featured July 29, 2025Featured Mountain Goat Kids’ Trail Running Series #4
Mountain Goat Kids’ Trail Running Series #4
For the nineth year, the Town of Frisco is hosting a series of four kids’ trail running races over the summer. The entire family is welcome to come out for a night of family fun at the Frisco Adventure Park. Once the kids cross the finish line, they can grab some snacks at the Frisco […]
Wednesday, July 30, 2025
No events on this day.
Thursday, July 31, 2025
-
July 31, 2025 -BRR Summer Track Series #5
BRR Summer Track Series #5
Join the Boulder Road Runners as we host the premier track and field meet series in Colorado! Tradition runs deep with this legacy event. Now in its 4th decade, the meets welcome people of all ages and abilities – youth, masters, elites, and age-groupers alike. Heats are organized by predicted finish time, giving everyone peers to […]
Friday, August 1, 2025
-
August 1, 2025First Fridays 5K
-
August 1, 2025 -Dirty Dozen Trail 10K
First Fridays 5K
Friday nights in the summer are made for spending time close to home, enjoying the beautiful weather, and unwinding from the long week. Why go anywhere else but Downtown Castle Rock? Start the night off on the right foot with the First Fridays 5K. Before enjoying the free concert event, get a workout with the […]
Dirty Dozen Trail 10K
The New Castle Rides and Reggae Festival is a celebration of trail running, mountain biking, music and community. Join them for the Dirty Dozen Tail 10K on August 6th.
Saturday, August 2, 2025
-
August 2, 2025 -Run for the Ring 5K
-
August 2, 2025 -Reece’s Roundup 5K/10K
-
August 2, 2025 -Flying Colors 5K
-
August 2, 2025 -Popsicle 5K
-
August 2, 2025 -Freedom Fest 5K
-
August 2, 2025 -Valley 5000
-
August 2, 2025 -Kennebec Mountain Run
-
August 2, 2025 -Staunton State Park 10M
-
August 2, 2025 -Chile Harvest Triathlon
-
August 2, 2025 -Walk Like MADD
-
August 2, 2025 -PPRR Nielson Challenge
-
August 2, 2025 -Hero Hustle Half Marathon
-
August 2, 2025 -Holy Hammers Hustle for Habitat
Run for the Ring 5K
he Guild of the Children’s Diabetes Foundation hosts the 11th Annual Run for the Ring 5K Run/Walk and Kids Fun Run, bringing together the type 1 diabetes community and supporters for a morning of fun, movement, and impact. The event will take place on Saturday, August 2, 2025, starting and finishing at the Barbara Davis […]
Reece’s Roundup 5K/10K
Join the Rubino Family at Philip S Miller Park in Castle Rock on August 14th for the 16th Annual Reece’s Roundup 5K/10K. This event supports Reece Rubino in his fight against Spinal Muscular Atrophy.
Flying Colors 5K
Join us for an untimed Fun Run/Walk to benefit Hospice in our community. The run will kick off a fun weekend in conjunction with the Moffat County Hot Air Balloon Festival. Participants will be splashed with vibrant color along the beautiful trails of the Yampa River at Loudy Simpson Park. Enjoy live music and soaring hot […]
Popsicle 5K
What better way to end these HOT summer days than with a Popsicle 5K, AND WE'VE ADDED A 10K & HALF MARATHON?!! Come join us for a 5K, 10K, or half and finish with nice cold popsicles Cottonwood Creek Park! The course will be an out and back on the Cottonwood Creek Trail. Come on […]
Freedom Fest 5K
Hosted by Colorado Veterans Project at Salisbury Equestrian Park located in Parker, Colorado Colorado Veterans Project invites everyone to come together to celebrate Colorado Day and the start to the 150th year as a STATE. Celebrate Colorado Day (Observed August 1st) and your Freedom while helping us raise money for Colorado Veterans. Supporting Colorado Veterans […]
Valley 5000
With over 300 runners expected and even more spectators, this will be an amazing year for the 39th Valley 5000, hosted by Sweetheart City Racing. This run/walk is scheduled to begin in Mehaffey Park on August 26, 2022. We are proud to support House of Neighborly Services, an organization that assists and advocates for people […]
Kennebec Mountain Run
Join us for the Kennebec Mountain Run, a challenging 15-mile trail run through the stunning La Plata Mountains of southwest Colorado. Test your alpine running skills on this rugged course that features 3,100 feet of elevation gain, topping out at 12,200 feet through Kennebec Pass! Enjoy sweeping views of the Animas River and Dolores River […]
Staunton State Park 10M
The third race in Evergreen Park and Recreation District's four-race series. Join us at Staunton State Park for a beautiful 10-mile trail race. Please bring a water bottle; this is a cup free race.
Chile Harvest Triathlon
The Socorro Chile Harvest Triathlon has been running for 25+ years!! This race is a 400 m swim in the City of Socorro pool, with a 20 km bike ride through Socorro and New Mexico Tech campus, ending with a relatively flat 5 km run through residential parts of town. The race is well supported […]
Walk Like MADD
Walk Like MADD is MADD's signature fundraising event to help us raise both awareness and funds to end drunk driving and fight drugged driving. With every step taken and each dollar raised, walkers are supporting MADD’s lifesaving mission to keep our families and communities safe.
PPRR Nielson Challenge
Race Format The first time you run this event, you'll establish a base time for yourself. This base time is used to generate a handicap time. The handicap time is calculated using an algorithm developed by Bob Royse, and it's geared to favor a beginning runner and the slower runners. Click here for an explanation of the […]
Hero Hustle Half Marathon
Suit up for the Hero Hustle – the ultimate family fun run! Whether you're zooming through the 5k, taking on the 10k adventure, or challenging yourself with the Half Marathon, this event is all about unleashing your inner superhero. Grab your cape, rally your sidekicks, and race for fun, not speed! With costumes, family-friendly vibes, […]
Please click here to submit your event for FREE to our online calendar.
We do not allow events without physical locations (IE – virtual runs, runs with locations TBD, etc…).
Please allow 48 hours after submission for an event to appear on the calendar. If you have already listed your event and would like us to update it, please contact us.