Showing 191 events within 150 km in the next 90 days. Page 8 of 10.
Sat, Aug 08, 2026 at 6:30 PM
August may be hot...but still a great time to run, and we hope you'll come join the runners of RMRR. We'll run our August 5k on the Highline Canal around DeKoevend Park. As always, everyone is
welcome.
For August, we use a mass start rather than our standard handicap start system.
Race Day Details
Date: Friday August 4th
Time: 6:30 pm start. Show up 30 minutes early to walk from your car, get your registration info, and warm up.
Distance: 5k.
Course: Race runs on the crusher/fine dirt Highline Canal around DeKoevend Park.
Course on Strava: https://www.strava.com/segments/22931643
Location: DeKoevend Park in Centennial. We run from the pavilion behind the Goodson Recreation Center.
Google Parking Link: Goodson Rec Center Parking. Park towards the far W end of the lot.
Stick around after for our potluck BBQ. RMRR provides the grillables and non-alcoholic drinks. We ask everyone to bring a salad, side dish, or dessert to share.
5k Run Walk
Sat, Aug 08, 2026 at 7:00 AM
As the summer mornings start to cool, join us for a fantastic end-of-season celebration at our 14th annual Runapalooza! From our new venue at Colorado Tap House, you'll have the chance to tackle
relatively gentle 5K and 10K courses that go along the acclaimed Ralston Creek Trail, taking you through shady, creekside beaty along Arvada's picturesque open spaces and charming golf course communities. Or our challenging half marathon course that combines the beauty of the Ralston Creek Trail with the challenging Blunn Reservoir loop with its gorgeous Denver and Front Range views. This event, paired with its Endless Series' counterpart Mardi Crawl, offers a can't-miss opportunity to experience the best of what Colorado has to offer!
5k 10k 13.1 Miles Run Trail
Sat, Aug 08, 2026 at 7:00 AM
Join us for the annual Summer Sizzler 5k/10k/15k! A fun summer event that is perfect for the whole family.
The fun includes -
Great Swag - designer shirt & custom medal
Chip-timing with live
results and awards
Free photos
Delicious Treats waiting at the finish line
FREE Shaved Ice!
Plenty of fun!
Grab your friends and family, you are not going to want to miss this one!
Can't make the race? No problem! We offer a virtual race option where you can run anywhere, at any time, and still earn the fun swag!
*Youth-based pricing for the 5k/10k, 12 & Under are only $17!
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 crafted medal for our kids' dash event! (If your child wants to run the kid's dash, and doesn't want the SWAG, they are welcome to run with us on race day for free!)
*Register by midnight on Thursday, two Thursdays before race day, to guarantee your shirt!
🏁🏅Create a team, or join an existing team during registration. Once 4 people have registered on that team, all team members will be refunded $5, once ten people register another $5 will be refunded for a total of $10!
1 Miles 3.1 Miles 6.2 Miles Run Virtual
Sat, Aug 08, 2026 at 8:00 AM
Run. Support. Celebrate.
Join us for the 7th Annual Arapahoe Warrior 5K and support the Arapahoe Warrior Cross Country Team!
With $10 from every registration going directly to the Arapahoe Cross
Country Booster Club, your participation makes a real difference for these hardworking athletes.
Enjoy a scenic run through the beautiful residential streets of Centennial on a measured, clearly marked course—perfect for runners, joggers, and walkers alike.
Post-Race Pancake Breakfast
After crossing the finish line, celebrate with a delicious pancake breakfast by Flippin’ Flap Jacks—complete with sausage and refreshing orange juice—free for all registered participants.
Custom T-Shirts
Add a race T-shirt to your registration for just $14.
Order by July 14th to guarantee yours.
Shirts are fitted—size up if you prefer a looser fit.
Finisher Medal & Awards:
Top 3 in each age group earns a custom 3.5” die-cast medal with a unique lanyard!
Top finishers will also be recognized:
Overall Winners
🏆 Male Overall Winner
🏆 Female Overall Winner
Age Group Awards – Top 3 in Each
10 & Under – Boys/Girls
11–12 – Boys/Girls
13–14 – Boys/Girls
15–19 – Boys/Girls
20–29 – Male/Female
30–39 – Male/Female
40–49 – Male/Female
50–59 – Male/Female
60–69 – Male/Female
70+ – Male/Female
That’s 62 total custom medals up for grabs!
Race Day Details
📅 Race Day: Saturday, August 8th
⏰ Start Time: 8:00 AM
📍 Location: Arapahoe High School – 2201 E Dry Creek Rd, Centennial, CO 80122
Packet Pickup & Registration
Friday, August 7th – Pre-Packet Pickup: 9:00 AM–11:00 AM at Arapahoe High School
Race Day Registration – Opens at 7:00 AM ($40)
Parking
Available at the high school and nearby neighborhoods.
Course Info
🏃 Course Type: Out-and-back
📈 Elevation Gain: 109 ft
📉 Elevation Loss: 89 ft
⬇️ Min Elevation: 5,575 ft
⬆️ Max Elevation: 5,665 ft
3.1 Miles 5k Run Walk
Sat, Aug 08, 2026 at 8:00 AM
Come join us for a race around the entirety of beautiful Lake McIntosh! This 3.5 mile race is a half paved/half dirt course surrounded by wonderful mountain views, vast farmlands, and beautiful
aquatic wildlife! Gather at Dawson Neighborhood park near the pirate ship playground where you will find an assortment of vendors, music, games, and fun! All are welcome to participate in this awesome event! Doggos are encouraged to participate!
! NEW ADDITION ! We are so excited to announce the Kids Dash! Please bring your kiddos to enjoy a mad dash to the finish line near the Pirate Ship Playground at Dawson Park!
1k 3.5 Miles Run
Sat, Aug 08, 2026 at 9:00 AM
The Splash Mash Dash Kids Triathlon is perfect for kiddos looking for a way to "TRI" the sport of triathlon or tune up their skills for a larger race. The race will offer kids a safe and fun
environment for racing.
To encourage participation and enjoyment for all, The Splash Mash Dash Kids Triathlon is a non-timed event. However, we do have awesome finisher medals that look just like the medals they've seen parents collect over the years! We encourage every child to do their best and practice racing in a supportive environment. We encourage parents to manually time their child if they are interested in a time for their race.
Kids Triathlon
Sat, Aug 08, 2026 at 9:30 AM
Eat. Run. Adopt.
Join us for Berthoud’s first-ever community-driven 10k!
In partnership with Berthoud Pet Supply, this isn’t just a race—it’s a moving feast with a mission. A portion of race
registration proceeds will go to Scroungy Dogs and Pretty Pups Rescue This community race and expo is designed to support Scroungy Dogs and Pretty Pups Rescue, a local 501(c)(3) non-profit dedicated to rescuing and rehoming dogs and cats throughout Northern Colorado.
Inspired by the spirit of the famous Taco Bell 50k, we are hitting the pavement to celebrate the heart of our town: our local cuisine, and small businesses. Runners will run around town stopping at set up food aid stations with a sample of the local restaurants food. They will wear a wristband that will be hole punched to show they completed eating their samples. They can collect all samples and eat them at the finish but need to hole bunch their wristband to confirm they made the stops.
Prizes for the overall winner are BOLDERBoulder 2027 entrance + cash prize. Runners up in men, women, kids, seniors get a gift basket with local items from local businesses.
6.2 Miles 10k Run
Sun, Aug 09, 2026 at 8:25 AM
THE 2026 BRECK EPIC
August 9-14, 2026
Back to the beginning. When mountain biking was a about big rides with friends. About lending a hand when a rider went down. About how a shared experience on a
challenging backcountry course disproportionately enriched all involved.
INCREDIBLE COURSES
The Breck Epic is composed of 6 BIG backcountry loops (3 loops for the 3-day Epic-curious events), each between 35 and 50 miles long. The event is unique in that it employs a cloverleaf format; each loop starting and finishing within a mile from downtown Breckenridge. The race utilizes the magnificently sprawling and interconnected network of trails that span the width and breadth of Summit and Park Counties.
When mapping out the courses we asked ourselves; “What big rides would we want to tackle if we had most of the day to slaughter and 6 of our best friends along for the ride?” The answer lies before you. The six stages that compose the Epic are a well-rounded rider’s dream. Long middle-ring climbs, endless big-ring mashing descents.
THE LONG HAUL
The 2026 version of the Epic marks our 18th edition. That's a lonnnnng time! "Time," some would.say, "To spice things up!" We think you'll like what we have on deck. The race is rad. The courses are beyond fun. The vibe? Mid-90’s mayhem. And Breck? It's amazing. Great people, amazing food and unbelievable weather.
In an average year, Epic will host riders from 25 different countries and 40 states. Why? We think because events like ours are just rare. It's a unique combination of mayhem and organization, with a huge emphasis on camaraderie and community.
BIGGER ISN'T BETTER - 400 RIDER LIMIT
We'll also be limiting the field in 2026. This is a statement about how we feel about the quality of the race experience. We simply believe that it's more fun when there are fewer people out there. Bigger isn't better. BETTER is better. We think you'll have a better time without your snout poking up some other rider's tailpipe all day. Not that there's anything wrong with that. But as they say, unless you're the lead dog, that view is always the same.
We feel that our course can handle more, but the question is, "Should it?" Our personal answer is no. Our commitment to our riders and to our trail network and community is to keep our numbers down. Because it's a better experience for our riders and because it lessens the impact on our trail system.
So yeah. Space is limited. That's by design.
If a weeklong tour of the world's greatest high alpine trail network sounds like your cup of tea, come join us. We’ve got great people in a great town with courses that you’re gonna need to ride to believe. What else do you really need?
MikeMac
Cycling Mountain Biking Trail
Sun, Aug 09, 2026 at 7:00 AM
Join us for the annual Summer Sizzler 5k/10k/15k! A fun summer event that is perfect for the whole family.
The fun includes -
Great Swag - designer shirt & custom medal
Chip-timing with live
results and awards
Free photos
Delicious Treats waiting at the finish line
FREE Kona Ice
Plenty of fun!
Grab your friends and family, you are not going to want to miss this one!
Can't make the race? No problem! We offer a virtual race option where you can run anywhere, at any time, and still earn the fun swag!
*Youth-based pricing for the 5k/10k, 12 & Under are only $17!
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 crafted medal for our kids' dash event! (If your child wants to run the kid's dash, and doesn't want the SWAG, they are welcome to run with us on race day for free!)
*Register by midnight on Thursday, two Thursdays before race day, to guarantee your shirt!
🏁🏅Create a team, or join an existing team during registration. Once 4 people have registered on that team, all team members will be refunded $5, once ten people register another $5 will be refunded for a total of $10!
1 Miles 3.1 Miles 6.2 Miles 9.3 Miles Run Virtual
Fri, Aug 14, 2026 at 6:00 PM
Location: Palmer Park
Parking: Meet in Parking Lot 1 near baseball fields off of Maizeland Rd and Academy Rd
Google Maps link: https://goo.gl/maps/raG6gsm6h1zMDchm6
This ride includes: Beginner,
BegIntermediate and Advanced groups.
We want our group rides to be a place you can come to be with friends. We have a no drop policy, so we will not leave anyone behind. This Thursday evening ride starts at 6:00 and should be done by 8:00 p.m. Please check in by 5:45 to find your group.
If this event has to be cancelled for any reason, all participants will be emailed and we will post the notification on Facebook by 4:30 p.m.
Don't forget to bring:
A mountain bike in reliable and safe condition
A helmet
Water, snacks, sunscreen
Cycling Group Ride
Fri, Aug 14, 2026 at 6:00 PM
Location: Red Rock
Parking: Meet in large main parking lot off of Hwy 24 and South Ridge Rd.
We want our group rides to be a place you can come to be with friends. We have a no drop policy, so we
will not leave anyone behind. This Thursday evening ride starts at 6:00 and should be done by 8:00 p.m. Please check in by 5:45 to find your group.
If this event has to be canceled for any reason, all participants will be emailed and we will post the notification on Facebook by 4:30 p.m.
Don't forget to bring:
A mountain bike in reliable and safe condition
A helmet
Water, snacks, sunscreen
Cycling Group Ride
Fri, Aug 14, 2026
21.7 km from GleneagleMarathon Run Trail
Sat, Aug 15, 2026 at 7:00 AM
Master the Journey is a youth mountain bike event focused on supporting the Type 1 Diabetes (T1D) community:
support events and promoting a healthy, active lifestyle for the T1D community by encouraging participation in mountain biking and lowering barriers to entry.
The event will feature U19, U17, and U15 race categories on an approximately 7-mile course. U19 and U17 participants will race 2 laps, while U15 participants will race 1 lap.
A current USA Cycling race license is required for U19 and U17 races. A one-day license can be purchased during registration, or U19 and U17 racers may visit https://usacycling.org/member to explore other licensing options.
Have fun, be safe, encourage each other.
Helmets are required at all times when riding. This applies to all event attendees.
Drugs, alcohol, and tobacco products are strictly prohibited.
Race age categories are determined by birth year. Racers can choose to compete in a higher age group if desired, but may not race in a lower age group. (Racing in a higher age group is not recommended. Racers, please consult with your coach if you decide to compete outside of your age group.)
Rider starting position for each category will be determined by Colorado High School Cycling League (Colorado League) ranking at the conclusion of the 2025 season, in hierarchical order, starting with varsity. Colorado League riders must register by August 5th, 2026 in order to secure starting position as a function of their 2025 league ranking.
Starting position for riders who do not have a 2025 Colorado League ranking and Colorado League riders who register after August 5th, 2026 will be determined by registration order, after assignment of starting positions for riders with a 2025 Colorado League ranking who registered by August 5th, 2026.
Riders must stay on marked course. Violations of this rule may lead to disqualification.
This is a family-friendly event. Profane, offensive behavior will not be tolerated. Attendees who mistreat others may be asked to leave.
Following the races, a portion of the course will be open for a Fun-Ride for all attendees (pre-registration required).
Why are we focused on T1D?
People with Type 1 Diabetes (T1D) cannot live without continuous insulin therapy, delivered via multiple daily injections or insulin pump. Out-of-pocket expenses for these patients and their families create disproportionate financial strain that is over 2 times the national average. According to the Children’s Diabetes Foundation,
“Over 40% of Barbara Davis Center patients are uninsured or underinsured.
“On average, the first year of care for a newly diagnosed type 1 is $20,000.
“Type 1 diabetes is the only disease where patients and caregivers are making life and death insulin dosing decisions, and they are doing it every hour of every day.
“Diabetes is expensive. New Onset patients spend about $1,400 on education and appointment fees. Pump Therapy can create better control but can cost up to $1,200 each month. Insulin for children can cost about $300 a month. Testing 6-8 times a day is normal and all those test strips add up to about $300 a month.”
The overall health and quality of life for people with T1D is significantly improved with routine physical activity. Action sports, such as mountain biking, promote healthy living while also imbuing a sense of thrill and excitement for the participants. Master the Journey is focused on raising awareness for the T1D community, introducing both new and experienced riders to youth mountain bike racing, and supporting T1D families in need.
Cycling Mountain Biking
Sat, Aug 15, 2026
47.8 km from Gleneagle50k Ultra
Sat, Aug 15, 2026
95.9 km from Gleneagle5k 10k 35k 50k Half Marathon Trail Ultra
Sat, Aug 15, 2026 at 6:30 AM
This is it: the race of all races. One hundred miles across the high-altitude, extreme terrain of the Colorado Rockies, this event was created for only the most determined athletes. Starting at
10,152 feet and climbing to 12,424 feet, you’ll be challenged to catch your breath—while the views try to take it away.
The Chris Klug Foundation (CKF) has been a charity partner with Lifetime since 2012, raising over $250,000+ for CKF's programs. CKF's Leadville Trail 100 charity team helps to educate others on the facts of organ, eye & tissue donation, while raising awareness for the those awaiting a lifesaving transplant nationwide.
100 Miles Mountain Biking Trail
Sat, Aug 15, 2026 at 7:00 AM
The Cheyenne Mountain Run features three scenic trail races inside Cheyenne Mountain State Park:
25K Mountain Challenge – for advanced trail runners
10K Trail Race – for experienced runners
5K
Run/Walk – a friendly, accessible option for all levels, including beginners
Each race uses color‑coded bibs
Start Details
Location: Limekiln Trailhead
Start Time: 7:00 AM (staggered start)
25K first, 10K next, 5K last
Fastest runners will start first with their race distance and walkers last.
All races are chip timed.
Poles: Not allowed.
25K Course Overview
Start Elevation: 6,000 ft
Max Elevation: ~9,450 ft
Total Elevation Gain/Loss: ~3,450 ft
Course: Talon → North Talon → Dixon Trail → Mountain Loop (clockwise) → return via Dixon → North Talon → Talon. 25 K Map
Cutoff Times
Dixon Saddle (mile ~5.8): 8:45 AM cutoffLocated 2.5 miles up the Dixon Trail
Runners arriving after 8:45 AM will be turned around
Top of Dixon Aid Station & Split Timing: closes at 10:00 AM
Finish Line Timing: closes at 12:00 PM
Aid Stations
Talon/Sundance
Talon/North Talon
Lower Dixon Trail
Top of Dixon Trail
All runners must carry their own hydration and be prepared for rapid weather changes.
10K Course Overview
Out Talon Trail to the second South Talon junction
Counterclockwise loop on South Talon
Return via Talon → Sundance → finish
Aid Stations: Talon/Sundance and Talon/North Talon. 10K Map
5K Course Overview
Talon → Sundance (~1.4 miles) → Turkey Trot → Talon → finish
Aid Station: Talon/Sundance 5K Map
This race is a fundraiser for The Friends of Cheyenne Mountain State Park A 501 (c) 3 charitable nonprofit) and is made to celebrate and fundraise for the park we know and love.
The safety of our participants and volunteers is our highest priority!
3.1 Miles 6.2 Miles 14 Miles Run Trail Walk
Sat, Aug 15, 2026 at 8:30 AM
Miles for Migraine will host its 7th annual 2-mile Walk, 5K Run and Relax Colorado event on Saturday August 15th at Great Lawn Park in Denver. This event is a fundraiser for Migraine & Headache
Awareness, Treatment & Research. It's more than a walk/run - come connect with your local migraine & headache community, listen to our speakers & visit sponsors in the festival area.
The 5K run is professionally timed. The Walk and the Relax events are free, but donations are encouraged. All walk and run finishers receive a finisher medal.
Dress up in your best purple flair for a chance at a fun prize!
Funds raised will benefit Miles for Migraine free programs & services as well as the University of Colorado Headache Center and Children's Colorado Headache Center to support local migraine research and fellowship training programs.
5k Run Virtual Walk
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
Sun, Aug 16, 2026 at 7:00 AM
Join us for the Erie Half and 5k!
The Hometown Race Series features half marathons and 5k distance events in outlying communities outside the Denver and Boulder metro areas.
LOOK UP! At the Erie
event, we often see the early morning skies with dotted with delightfully colorful hot-air balloons.
Whatever distance you're ready to tackle, we'll be there with you to celebrate at the finish line! This is one of the few 5k events where FINISHER MEDALS are awarded to each participant. Go home with proof of your pride and show off that bling!
5k 13.1 Miles Run