5K Races in Colorado — 2026

There are 272 5K races in Colorado scheduled for 2026. The next is the HRCA Happy Hour Half K in Littleton on June 19. Colorado 5K races run primarily June.

Cookie Chase

Sat, Jul 11 · Denver, CO Denver

5KVirtual 5K

From $30 Open

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Paint the Prairie

Sat, Jul 11 · Aurora, CO Aurora

Paint the Prairie Color Run

From $15 Open Closing Soon

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DRMABPsi 1–5K Walk, Run & Roll

Sat, Jul 11 · Denver, CO Denver

1kKids Run2k +3

From $10 Open Closing Soon

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Heatwave Half Marathon - Denver

Sat, Jul 11 · Littleton, CO Littleton

1 Mile5K10K +5

From $17 Open Closing Soon 5 spots left

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All-Out Dog Days

Sat, Jul 11 · Westminster, CO Westminster

VIRTUAL 5K5K10K +3

From $20 Open Closing Soon

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Rocky Mountain State Games - Swim / Run

Sun, Jul 12 · Colorado Springs, CO Colorado Springs

Swim / Run - 5-8yrsSwim / Run - 9-15yrsSwim / Run - 16+ yrs

From $25 Open

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Heatwave Half Marathon - Colorado Springs

Sun, Jul 12 · Colorado Springs, CO Colorado Springs

1 Mile5 K10 K +5

From $17 Open Closing Soon 5 spots left

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RMRR July 2mi & pancake breakfast

Sun, Jul 12 · Lakewood, CO Lakewood

2mi

From $10 Open

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PNAAF 5K Wellness Challenge

Thu, Jul 16 · Colorado Springs, CO Colorado Springs

Virtual 5KPNAAF 5K Wellness Challenge

From $35 Open

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Festival in the Clouds Firefighter 5K, Fun Run and Doggie Dash

Sat, Jul 18 · Alma, CO Alma

5K Fun Run and Doggie Dash5K Fun Run and Doggie Dash - Youth Racer 5 and Under5K Fun Run and Doggie Dash - Youth Racer 6-12

From $0 Open

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49th Annual Manassa Pioneer Days 5K Run

Sat, Jul 18 · Manassa, CO Manassa

5K Run

From $20 Closed

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Summer Splash Prairie Dog Half, 10k, & 5k

Sat, Jul 18 · Castle Rock, CO Castle Rock

5k10kHalf Marathon

From $25 Open

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Spring Creek Memorial Trail Run

Sat, Jul 18 · Steamboat Springs, CO Steamboat Springs

5k9.5 Mile

From $25.75 Open 100 spots left

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2026 OCA Colorado 5K Panda Run

Sat, Jul 18 · Denver, CO Denver

2026 OCA Colorado 1K Panda Walk2026 OCA Colorado 5K Panda Run

From $35 Open

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Heritage Eagles 5K

Sat, Jul 18 · Littleton, CO Littleton

Heritage Eagles 5K

From $25 Open

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CU Anschutz Run Club 5K

Sat, Jul 18 · Aurora, CO Aurora

5K without T-Shirt5K with T-Shirt

From $7 Open Closing Soon

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One Is Too Many: Veteran Suicide Awareness 5k and Kids Run

Sun, Jul 19 · Greeley, CO Greeley

1 Mile5k run or walk

From $15 Open

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Clear for Takeoff Virtual 5K

Mon, Jul 20 · Colorado Springs, CO Colorado Springs

Clear for Takeoff Virtual 5K

From $35 Open

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Flyin' Ryan Memorial 5k

Fri, Jul 24 · Loveland, CO Loveland

Flyin' Ryan Memorial 5k

From $25 Open

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Newbie to 5k

Sat, Jul 25 · Pueblo, CO Pueblo

Newbie to 5K

From $50 Closed

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2nd Annual Pancreatic Cancer Awareness in Honor of Diana Cantu - 5K Fun Run/Walk

Sat, Jul 25 · Alamosa, CO Alamosa

5k Run/walk - 18 & Over5k Run/walk - 16 & Under

From $18 Open

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The Hero's Journey 5K

Sat, Jul 25 · Aurora, CO Aurora

Kids Fun Run5K (21 and older)5K Under 21 +1

From $10 Open

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Run for Donuts 5K/10K/13.1 DENVER/AURORA

Sat, Jul 25 · Centennial, CO Centennial

Family 1 Mile Fun Run5K RegistrationVirtual Run Registration +3

From $30 Open

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Run for Coffee Lovers 5K/10K/13.1 DENVER/AURORA

Sat, Jul 25 · Centennial, CO Centennial

Family Fun Run 1 MileVirtual Run Registration (5K/10K/13.1)5K/10K/13.1 Eco-Registration (No Shirt) +3

From $30 Open

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Spirit of the West 5K Run/Walk

Sun, Jul 26 · Golden, CO Golden

5K Run/Walk

From $35 Open

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CCOC Kids Triathlon

Wed, Jul 29 · Colorado Springs, CO Colorado Springs

Kids triathlon

Closed

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RunAbilities FUN Walk/Run/Roll

Sat, Aug 1 · Parker, CO Parker

2 Mile Walk/Run/Roll2 Mile Bike Ride

From $25 Open

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12th Annual Run for the Ring

Sat, Aug 1 · Aurora, CO Aurora

Virtual 5K Run/Walk5K Race - Run/WalkSleep In +1

From $14.5 Open Closing Soon

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Flying Colors 5K Fun Run/Walk

Sat, Aug 1 · Craig, CO Craig

5K Fun Run/Walk

From $30 Open

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STEPS TO EMPOWER

Sat, Aug 1 · Colorado Springs, CO Colorado Springs

Steps to Empower 1 Mile Walk/RunVIRTUAL Steps to EmpowerSteps to Empower 5K Walk/Run

From $25 Closed

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Popsicle 5K/10K/Half - Colorado Springs

Sat, Aug 1 · Colorado Springs, CO Colorado Springs

5K-No Shirt5KVirtual 5K +6

From $25 Open

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Unicorn 5k (South)

Sat, Aug 1 · Highlands Ranch, CO Highlands Ranch

5k Run/Walk3/4 (ish) Mile Saunter

From $13 Open

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2026 Rocky Mountain Strength Rendezvous

Sat, Aug 1 · Littleton, CO Littleton

2026 Rocky Mountain Strength Rendezvous

From $75 Open 60 spots left

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Eldorado Run for the Cure

Thu, Aug 6 · Eldorado Springs, CO Eldorado Springs

Eldorado Run for the Cure

From $30 Open

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Choice City Running Festival

Fri, Aug 7 · Fort Collins, CO Fort Collins

Jane Welzel Mountain Avenue MileHuman Race 5kHuman Race 10k +4

From $20 Open Closing Soon

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RMRR August 5km and picnic

Fri, Aug 7 · Centennial, CO Centennial

5k

From $10 Open

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Escalante Days 5K

Sat, Aug 8 · Dolores, CO Dolores

5K

From $30 Open

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Summer Sizzler- Denver

Sat, Aug 8 · Thornton, CO Thornton

1 Mile5k10k +4

From $17 Open 5 spots left

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Dog Days of Summer

Sat, Aug 8 · Longmont, CO Longmont

Kidz DashDog Days of Summer 3.5 Loop

From $20 Open Closing Soon 25 spots left

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Arapahoe Warrior 5K

Sat, Aug 8 · Centennial, CO Centennial

Warrior 5K

From $25 Open Closing Soon

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All-Out Runapalooza

Sat, Aug 8 · Arvada, CO Arvada

5KVIRTUAL 5KVIRTUAL 10K +3

From $20 Open

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The Berkeley Circuit

Sun, Aug 9 · Denver, CO Denver

The Berkeley Circuit

From $30 Open

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Pancake Stampede 5K

Sun, Aug 9 · Littleton, CO Littleton

5K

From $20 Open

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Summer Sizzler- Colorado Springs

Sun, Aug 9 · Colorado Springs, CO Colorado Springs

1 Mile5K10K +4

From $17 Open 5 spots left

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Miles for Migraine Colorado

Sat, Aug 15 · Denver, CO Denver

2 Mile Walk5K Run

Closed

Register →

CWCS 5K Color Fun Run

Sat, Aug 15 · Montrose, CO Montrose

CWCS 5K Color Fun Run

From $40 Open

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Sunrise Stampede

Sat, Aug 15 · Longmont, CO Longmont

1 Mile Fun Run/Walk (all ages)FREE 1 MILE ENTRIES: First 25 SVVSD Students to enter!!!5k Run/Walk +2

From $0 Open 25 spots left

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Frontier Academy Community 5K

Sat, Aug 15 · Greeley, CO Greeley

Frontier Academy's 15th Annual 5K

From $25 Open

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Run for PB& J 5K/10K/13.1 DENVER/AURORA

Sat, Aug 15 · Centennial, CO Centennial

Family 1 Mile Fun Run5K RegistrationVirtual Run Registration +3

From $30 Open

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Bagel Run 5K/10K/13.1 DENVER/AURORA

Sat, Aug 15 · Centennial, CO Centennial

Family Fun Run 1 Mile5K/10K/13.1 Eco-Registration (No Shirt)5K Registration +3

From $30 Open

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