Showing 11 events within 50 km in the next 365 days.
Sat, Jun 06, 2026
30.4 km from Frisco, Breckenridge, Dillon, Silverthorne, Copper, Abasin50k Ultra
Sat, Jun 06, 2026 at 12:00 AM
Let's get walking or running or riding starting 6/6/26-6/14/26 to raise awareness and funds for 22q. This virtual event will kick-off on Saturday, June 6 in your community, on your treadmill, or
wherever you exercise. Whether you sign up to run, walk, or bike, let's get moving and feel united throughout the week. Be sure to share your photos on social media and tag us @22qfamily and use the #run22for22q. We will also be offering an in-person event again in Erie, CO with the hopes of eventually expanding to more locations in the future.
22q is the SECOND MOST COMMON genetic disorder after Down Syndrome, yet it's less known and harder to diagnose. 22q has a rate of occurrence in 1 in 2,000 births and is found in 1 of 68 children born with a heart defect!
60-75% of all individuals with 22q have a heart defect,
75% have differences in their palate that affect their speech and often create nasal regurgitation,
35% have significant feeding and swallowing problems,
77% have immunodeficiency
40-60% have anxiety
50%+ have a cognitive impairment
To learn more about 22q and how The 22q Family Foundation is making a difference CLICK HERE.
2.2 Miles 3.1 Miles 3.2 Miles 10 Miles 13.1 Miles 20 Miles 26.2 Miles Run Virtual Walk
Sat, Jun 13, 2026 at 7:30 AM
Waitlist Coming Soon
The Hundo (100K) or Hundito (64K) showcases the sweetest of Colorado singletrack at the beloved Buffalo Creek trail system. Finish at a gorgeous venue on private property, and
you have a dreamy cross-country MTB spectacular.
How to Sign Up
There are three ways to secure your spot:
Enter the Lottery – Your card will be automatically charged if you are selected on March 10. No charge if not.
Fundraise for Our Beneficiaries – Snag one of our 75 fundraiser entries and earn guaranteed entry while supporting a great cause
Volunteer – Support the Session Series or Hundo pre-race and bypass the lottery (limited to 40)
If you enter the lottery, you will have the option to create or join a Lottery Group. This ensures you won’t be separated from friends or family when selections are made. Please note: Lottery Groups are separate from race teams. Official race teams can be created after lottery selections are complete.
The Hundo proudly supports:
Colorado High School Cycling League
COMBA
Lucky Bikes
Even if you choose not to fundraise, add a little during the registration and give to the cause of kids, trails, and bikes - aces.
For full details on the lottery process, team entries, and selection timeline, please review our Lottery FAQs
E-Bikes are not allowed in the Hundo
64k 100k Cycling Mountain Biking Trail
Sat, Jul 04, 2026 at 10:30 AM
The Burro Buster 5k is a fun, family friendly, 5k in one of America's highest incorporated towns. Join us in Fairplay on the 4th of July on our run through town! The course lies inside of the town
limits and starts and finishes in front of the historic Hand Hotel & Emporium. Your terrain will include asphalt, dirt, rocks, stairs, and some hills. You will also enjoy great views, a river, historic buildings, lack of oxygen (9,953' above sea level!) and fun! There will be NO water station on course. Water will be available at the beginning and end of the race.
This event benefits the Town of Fairplay Scholarship Fund.
5k Run
Fri, Jul 10, 2026 at 4:00 AM
The Human Potential Running Series Presents:
The Silverheels Trail Runs @ COMO ROUNDHOUSE
The Silverheels Trail Runs take place at an average elevation of over 10,000’, in one of the most visually
stunning areas of Colorado. The course features a mixture of single track trails and fire roads, with a few stretches of dirt road; it takes runners through high alpine and sub-alpine meadows loaded with wild flowers, with expansive views of the South Park Valley and beneath the towering "Decalibron" 14er's. You'll run through ghost towns, past abandoned mines, awe at the wildflowers in full bloom, and dance under the watchful eye of Silverheels Mountain herself and the ever stunning Milky Way Galaxy. Our 10-Mile and 18-Mile options are run on the gorgeous Gold Dust Trail traveling through massive aspen groves, over many high mountain creeks, through old mining encampments, and along a miners ditch hand dug by those in the late 1800s.
10.8 Miles 19.1 Miles 38.3 Miles 53.8 Miles 63.1 Miles 106.2 Miles Run Trail
Sun, Jul 19, 2026
44.9 km from Frisco, Breckenridge, Dillon, Silverthorne, Copper, AbasinRun Trail
Sun, Jul 26, 2026 at 10:15 AM
The first year of the World Championship Pack Burro Race in 1949 saw 21 entrants with only 8 finishing the race. These days there are nearly 100 racers and burros that take on this historic
challenge. Some choose the “lower altitude” short course of approximately 12.3 miles while others take on the long course and attempt the grueling climb to the top of Mosquito Pass and back, 29+ miles and an elevation change of 3,232'! The racers start at 9,953 feet in Fairplay with long course runners hitting their halfway point at the top of Mosquito Pass, elevation 13,185'!
Short Course Map
Long Course Map
***Disclaimer: Staff are currently discussing a time limit for each course. Racers will have until a certain time to reach a specified checkpoint. If they reach the checkpoint after the required time, they will be directed to turn around and will receive a DNF.
Free race photos provided by Pack Burro Racing Photographers at PBRphotos.org
15 Miles 31 Miles Run World Championship
Sat, Aug 01, 2026 at 6:00 AM
The Human Potential Running Series Presents:
The Sheep Mountain Trail Runs @ Fairplay, CO
Come ready my friends, this mountain throws everything it has at trail and ultra runners alike, challenging
you from start to finish at an average elevation over 10,600′. You’ll run amongst these “beautifully difficult” mountains and hills lining the western slope of the South Park Valley. This is the race where you carry #Adversity on your back, if you can handle the burden, you can win the day! Runners looking for a wilderness experience, stunning views, opportunities for technical terrain mixed with remote forest service roads… will fall in love with this course. The Sheep Mountain 50 mile and 50k promises to provide runners with an unforgettable experience that celebrates the history, and rough and tumble nature of this mountain region. The Sheep Mountain Half Marathon is a wonderful introduction into trail running for those looking for a more mellow day. The course features flowing dirt county roads and USFS Fire Road (some of a little rocky).
14.2 Miles 33 Miles 53.1 Miles Run Trail Ultra
Sat, Aug 15, 2026 at 9:00 AM
3 Race Options:
Beginner, Intermediate and Advanced Loop Options
The Beginner and Intermediate routes are the same (1 or 2 loops). This route is not technical but with some fun flowy riding!
The Advanced loop adds more technical terrain after completing the Beg/Int Loop with a total of 2 loops on the technical
Prizes for top 3 Male/Female in each category
5 Miles 10 Miles 15 Miles
Sat, Sep 19, 2026 at 8:00 AM
A child's adventure begins with yours.
The Battle by the Brook Adventure Race
raises money to send kids to camp.
Join us for the
9th Annual YMCA Camp Shady Brook's
Battle by the Brook
September 19th, 2026.
6 Miles 20 Miles
Sat, Oct 03, 2026
39.1 km from Frisco, Breckenridge, Dillon, Silverthorne, Copper, Abasin10k 50k Ultra