Colorado · 5K
5Ks in Colorado
Colorado currently has 143 upcoming 5Ks with a confirmed date listed in RaceRove. Denver, Centennial, Colorado Springs and Littleton have the largest concentration of events.
October (41), November (28) and September (19) are the busiest months on the calendar right now. Another 121 annual 5Ks are waiting for next year's date to be announced.
- Upcoming, date confirmed
- 143
- Active listings
- 264
- Cities with races
- 76
More ways to browse Colorado
Upcoming 5Ks in Colorado
All 143 with a confirmed date, soonest first.
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Colorado Springs Marathon, Half, 5K, and Kids KColorado Springs, COMarathonHalf Marathon10K5K +1 more
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Rim to Rim Royal Gorge Races: 5K Road Run, Trail 8 Mile, Trail Half MarathonCanon City, COHalf Marathon5K8 Miles ~400 runners
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Windsor Marathon, Half Marathon, 10k, 5k & 1 Mile RunWindsor, COMarathonHalf Marathon10K5K +1 more ~660 runners
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The StrideLittleton, CO5K Adult (18-64)5K Senior (65+)5K Youth (18 and Under)Kids Fun Run (10 and Under) +2 more
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Elevate Kids Fun RunGrand Junction, CO10K Individual2.5K Individual5K IndividualCharity Bib +1 more
Dates come from each race's own listing. Always confirm on the organiser's site before you book travel.
Largest 5K events in Colorado
By estimated field size across all distances at the event.
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Denver Colfax MarathonDenver, CO Usually held in May · date not confirmedMarathonHalfUrban 10 MilerMarathon Relay +1 more ~25,000 runners
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BoulderthonBoulder, CO Usually held in September · date not confirmedMarathonHalf Marathon10K5K +1 more ~15,000 runners
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Cherry Creek SneakDenver, CO Usually held in April · date not confirmed10 Mile5 Mile5K ~8,000 runners
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Rock 'n' Roll Denver Marathon & Half MarathonDenver, CO Usually held in October · date not confirmedMarathonHalf10K5K ~7,000 runners
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Highlands Ranch Turkey Day 5KHighlands Ranch, CO Usually held in November · date not confirmed5K ~3,000 runners
When 5Ks happen in Colorado
- January
- 7 upcoming races
- February
- 7 upcoming races
- March
- 4 upcoming races
- April
- 8 upcoming races
- May
- 6 upcoming races
- June
- 5 upcoming races
- July
- 4 upcoming races
- September
- 19 upcoming races
- October
- 41 upcoming races
- November
- 28 upcoming races
- December
- 14 upcoming races
Colorado cities with the most 5Ks
- Denver
- 17 upcoming races
- Centennial
- 17 upcoming races
- Colorado Springs
- 12 upcoming races
- Littleton
- 10 upcoming races
- Arvada
- 8 upcoming races
- Westminster
- 7 upcoming races
- Fort Collins
- 6 upcoming races
- Pueblo
- 4 upcoming races
Annual events awaiting their next date
These 5Ks are held every year, but the next date isn't in the listing yet. The month shown is when each is usually held.
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Denver Colfax MarathonDenver, CO Usually held in May · date not confirmedMarathonHalfUrban 10 MilerMarathon Relay +1 more ~25,000 runners
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BoulderthonBoulder, CO Usually held in September · date not confirmedMarathonHalf Marathon10K5K +1 more ~15,000 runners
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Cherry Creek SneakDenver, CO Usually held in April · date not confirmed10 Mile5 Mile5K ~8,000 runners
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Rock 'n' Roll Denver Marathon & Half MarathonDenver, CO Usually held in October · date not confirmedMarathonHalf10K5K ~7,000 runners
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Highlands Ranch Turkey Day 5KHighlands Ranch, CO Usually held in November · date not confirmed5K ~3,000 runners
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HRCA Backcountry Wilderness Half MarathonHighlands Ranch, CO Usually held in November · date not confirmedHalf10K5K ~2,000 runners
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Frosty's Frozen 5K, 10K & Half MarathonLittleton, CO Usually held in January · date not confirmedHalf Marathon10K5K ~1,500 runners
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Run the Rocks at Red RocksMorrison, CO Usually held in October · date not confirmed10K5K ~1,500 runners
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Super Half Marathon & Game Day 5KColorado Springs, CO Usually held in February · date not confirmedHalf Marathon5K ~1,500 runners
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Old Man Winter Rally RunLyons, CO Usually held in February · date not confirmed5K10KHalf Marathon ~1,000 runners
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Snowman StampedeLittleton, CO Usually held in February · date not confirmedHalf Marathon10K5K ~1,000 runners
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Run the Rockies Trail Half MarathonFrisco, CO Usually held in August · date not confirmed5K10KHalf Marathon ~600 runners
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9/11 Heroes Run - Denver, ColoradoDenver, CO Usually held in September · next date not announced5K1 Miles
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Balanced Movement Yoga - Charity Fun 5K Walk/Run (Dog-Friendly)Evans, CO Usually held in September · next date not announced2K5K Walk/Run
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Be Ovary Aware 5k run 3k walkColorado Springs, CO Usually held in September · next date not announced3K Walk Adult3K Walk Youth5K Run Adult5K Run Youth +1 more
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Beulah Challenge and OverIt SeriesBeulah, CO Usually held in September · next date not announced10K5K32.4 Miles
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Black Squirrel Half MarathonBellvue, CO Usually held in September · next date not announcedHalf Marathon5K
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Bound for Boston Marathon & Half Marathon - DenverDenver, CO Usually held in August · next date not announcedMarathonHalf Marathon10K5K
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Break Your Neck: Walk, Run, or RollPueblo, CO Usually held in September · next date not announced5K10K
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Byers Peak Stampede Half Marathon & 5K RunFraser, CO Usually held in August · next date not announcedHalf Marathon5K3 Miles
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Cancer League of Colorado Race 4 ResearchDenver, CO Usually held in August · next date not announced5K
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CASA Superhero RunGlenwood Springs, CO Usually held in September · next date not announced1 Mile Individual5K IndividualVirtual Participant
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Chile & Frijole Hot to Trot 5K & 10KPueblo, CO Usually held in September · next date not announced5K
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Choice City Running FestivalFort Collins, CO Usually held in August · next date not announced1 Miles5K10K
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ColorFest Color Run/Walk 5KPagosa Springs, CO Usually held in September · next date not announced5K
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Denver 5K On The RunwayDenver, CO Usually held in September · next date not announced5K Registration with Carpool Parking Pass5K Registration with Individual Parking PassYouth 5K Registration
5Ks in nearby states
Guides from the RaceRove blog
- 7 min read How to Find a 5K, 10K, Half Marathon or Marathon Near You A practical way to find running races near you: pick a distance, decide how far you'll travel, read the listing properly and confirm the details before you register.
- 8 min read How to Choose the Best Half Marathon for a PR, Racecation or 50-State Challenge The best half marathon depends on what you want from it. How to choose a course for a personal record, a race worth travelling for, or an efficient stop on a 50-state challenge.
- Blog All guides Planning advice for finding, choosing and travelling to races.
5Ks in Colorado: common questions
- How many 5Ks are there in Colorado?
- RaceRove currently lists 143 upcoming 5Ks in Colorado with a confirmed date, plus 121 annual events whose next date hasn't been announced yet.
- How long is a 5K?
- A 5K is 3.1 miles (5 kilometres).
- Which Colorado cities have the most 5Ks?
- By upcoming events listed in RaceRove: Denver (17), Centennial (17), Colorado Springs (12), Littleton (10) and Arvada (8).
- When is 5K season in Colorado?
- Of the upcoming 5Ks listed, the busiest months are October (41), November (28) and September (19).
- What is the biggest 5K in Colorado?
- By estimated field size, the largest event with a 5K listed in Colorado is the Denver Colfax Marathon, with about 25,000 runners across all of its distances.
Search every 5K in Colorado
Filter by month, course profile and field size, save races to a shortlist and compare them side by side in the interactive search.