Event details subject to change. Please confirm all information via event website.
Hometown Half Marathon
Join us for the annual Hometown Half Marathon & 5k/10k! A run local-themed event that is perfect for the whole family. The fun includes great swag (designer shirt, custom medal), […]
Space Race 5K
✨Prepare for launch! ✨ The Wings Space Race 5K invites you to push past your limits and chase the stars into an experience that’s truly out of this world! Join […]
Colorado Women’s Classic
We are excited for the 2026 Colorado Women's Classic! While focused on women, all genders are WELCOME at this event!
Super Mom Half Marathon
Celebrate the incredible strength, love, and spirit of moms everywhere at the Super Mom 5K/10K/Half Marathon! Whether you are a mother, are running for a mother, or simply want to […]
Fruita Trail Half Marathon
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 […]
Mother’s Day 5K
The Denver Mother's Day 5K – It's What Colorado Moms Do! This year, all-you-can-eat pancakes and three sausage breakfasts with OJ or coffee will be provided by Flippin' Flapjacks for all registered participants. […]
Know. Grow. GO RUN. 5K
Come and GO RUN or walk our new cross country trail on campus.
Ram Party Trail Runs
With plenty of race options for everybody centered around the beautiful Rampart Reservoir in Woodland Park, Colorado, you're sure to have a good time while you take in the epic […]
Dog Jog 5K
The Dog Jog 5k is back and better than ever! Join the pack and run for a cause. This dog friendly 5k welcomes runners and walkers of all ages (even […]
Black Canyon Ascent
The Black Canyon Ascent 6-mile Run and Challenge Walk features a tough, scenic course starting at an elevation of 6500' and climbing almost 2,000' to the rim of the Black […]
Endure Trail Runs
The Endure 12-Hour is a one-of-a-kind challenging 12-Hour timed event, designed by YOU… and tiny colorful balls. Each runner will pull colored balls from a bucket, which determines the loop they’ll […]
Memorial Day Run and March
Special Forces Foundation is proud to announce the Annual Memorial Day Run & March. Be a part of the LARGEST food donation event in Colorado! The Memorial Day Run & March […]
Tour de Victory
Join the Tour de Victory Cycling Challenge, Colorado’s premier Parkinson’s bike ride benefiting the Davis Phinney Foundation. This boutique bike ride is an opportunity to join the Davis Phinney Foundation’s inspiring community and make a positive impact on the […]
Boneyard Boogie Trail Run
Eagle Pool and Ice Rink 1700 Bull Pasture Road, Eagle, CO, United StatesThe Boneyard Boogie kicks off the 2025 Vail Trail Running Series with a 14K or 6K scamper through pinyon groves and juniper shrubs on some of Eagle's most scenic single […]
Vallecito Lake Heavy Half
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 […]
Gluten Free Gallop
Join Denver Celiacs to raise awareness of celiac disease and all gluten-related disorders. Our 13th Annual Gluten Free Gallop 5K will take place at Clement Park in Littleton, CO, on […]
Ouray Backyard Ultra
A Backyard Ultra. Complete an easy 4.167 mile course. If you finish in less than an hour—just a 14:24 pace per mile—you get to do it again at the top […]
Colfax 5K
Come run City Park in the Colfax 5K! Go for a PR in this chip-timed race – separate stroller-friendly start wave for families and walkers. And, you can run with […]
Colfax Marathon
New for our 20th Year! “WOW” at Every Mile To celebrate our 20th, every mile will have a WOW for runners. That moment every mile that gives you that WOW […]
Wild Horse Half Marathon
Set against the breathtaking backdrop of the luxurious High Lonesome Ranch, this isn’t just a race—it’s a full weekend of adventure and celebration! Runners will enjoy a country cookout, campfires, live […]
Mt Sopris Run-Off
The Mt Sopris Run-Off takes place in Carbondale, CO and offers two distances – 10-Miles and 28k. Historically this race has been a part of the Town of Carbondale’s Mountain […]
Miles for Smiles 5K
The Miles for Smiles 5K is a friendly event that begins and ends on the track at the North Area Athletic Complex (NAAC) in Arvada with a scenic trek along the Fairmount Trail in the middle. Join Right Start Events on May 15th, 2022 for this 5K and Adaptive Dash.
Canine On the Creek 5K
Gather your family and friends, including your furry friends—don't forget Fido! Grab your running (or walking) shoes and join us in supporting FOCP (Friends of Charlie's Place), the Clear Creek […]
Turquoise Lake 20K
The Turquoise Lake 20K offers unparalleled mountain views as you run clockwise around scenic Turquoise Lake. The first 7.5 miles of the course consists of hilly paved road. The final […]
Farish Trail Race
Date: May 23, 2026 Location: Farish Recreation Area at 12005 Rampart Range Rd Woodland Park, CO 80863 Start times: 7:00 am – 8:00 am Distance: Half Marathon, 10K, 5K 1 […]
Samson’s Revenge Trail Race
Samson was the celebrity elk of the Rockies until he was illegally poached in 1995 on YMCA grounds. Our race runs on Samson's home turf, The YMCA of the Rockies, […]
Mile High Mile
The Mile High Mile Saturday, May 23 | Boulder High School The Mile High Mile is back for its 8th season—bringing a high-energy night of racing to Boulder for runners […]
Narrow Gauge 10 Mile
Since 1978 the Narrow Gauge 10 Mile Run has been one of Durango’s oldest Memorial Day traditions. The 10-mile course showcases the Fort Lewis College rim, the Animas River Trail […]
BolderBoulder 10K
We’re not sure when or how it happened, but somewhere along the way our little run in Boulder, CO turned into an event of epic proportions. We like to think […]
Angel Run
Please join us on Memorial Day for the 5th Annual Angel Run in support of the local, veteran-owned 501c3 non-profit organization, Angels of America's Fallen! Gather at Red Leg Brewing […]
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