Running Races in Colorado — 2026

There are 403 running races in Colorado in 2026 across 102 cities. The next upcoming race is the Yampa River Festival 2026 in Steamboat Springs on May 30. Popular distances include 5K races, trail runs, half marathons.

Our Peak of Wellness Walk / Run -- Trinidad Wellness Festival 5K

Sat, May 30 · Trinidad, CO Trinidad

Road Standard Registration

From $25 Open Closing Soon

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Evergreen Trail Race Series

Sat, May 30 · Evergreen, CO Evergreen

Trail Evergreen Trail Race SeriesEvergreen Trail Race SeriesEvergreen Trail Race Series +1

From $40 Open Closing Soon

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Dash4Hope 2026

Sat, May 30 · Greeley, CO Greeley

Road Dash4Hope 2026

From $15 Open Closing Soon

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M1LE Nation Challenge

Sat, May 30 · Anywhere, CO Anywhere

Virtual Team M1LE Nation- Virtual RaceM1LE Nation- LIVE RaceM1LE Nation- Virtual Race +2

From $10 Open Closing Soon

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Weld Your Mettle Running Festival

Sat, May 30 · Eaton, CO Eaton

Virtual 7K Ruck (4.3 Miles)7k walk or run (4.3 miles)14 Mile +10

From $35 Open Closing Soon

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2026 MTHCF 5K

Sat, May 30 · Fruita, CO Fruita

Road 2026 Mike The Headless Chicken 5K

From $35 Open Closing Soon

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Yampa River Festival 2026

Sat, May 30 · Steamboat Springs, CO Steamboat Springs

Fish Creek Kayak Race (Test)Tube Rodeo - Charlie’s HoleFly Fishing Downriver Race - Rich Weiss Park +11

From $0 Open Closing Soon 10 spots left

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Mile High Rescue Sixth annual 5K! Running for Rescues! & Summer Kick Off Party

Sun, May 31 · Englewood, CO Englewood

Virtual 1 Mile Fun Run - Onsite1 Mile Fun Run - VirtualRunning for Rescues! 1 Mile - Onsite - Girls on the Run or School Run Clubs +7

From $5 Open Closing Soon

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Love Hard 5k Fun Run

Mon, Jun 1 · Denver, CO Denver

Virtual St. Louis Love Hard 5kChicago Love Hard 5kVirtual Love Hard 5k +5

From $8.5 Open Closing Soon

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Endorphins for Orphans Virtual 5K

Mon, Jun 1 · Colorado Springs, CO Colorado Springs

Virtual Virtual 5K

From $75 Open

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The Big Run Presented By Brooks

Wed, Jun 3 · Colorado Springs, CO Colorado Springs

Open Closing Soon

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Global Running Day with Altra & Runners Roost

Wed, Jun 3 · Denver, CO Denver

Open Closing Soon

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The Barmen Mile

Wed, Jun 3 · Arvada, CO Arvada

Road The Barmen Mile - Global Running Day

From $0 Open Closing Soon

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KDA Global Running Day Challenge

Wed, Jun 3 · Denver, CO Denver

Virtual KDA Global Running Day Challenge - WITH CHALLENGE MEDALKDA Global Running Day Challenge - NO MEDAL

From $25 Open Closing Soon

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Steamworks Half Marathon

Sat, Jun 6 · Durango, CO Durango

Road 1/2 Marathon

From $79 Open Closing Soon

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Aiden's Adventure 5k

Sat, Jun 6 · Colorado Springs, CO Colorado Springs

Virtual Aiden's Adventure 5k Kids 1-Mile DashAiden's Adventure 5k Kids 1-Mile Dash - NO SHIRT/MEDALAiden's Adventure 5k Virtual Event +2

From $10 Open Closing Soon

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Creede Donkey Dash

Sat, Jun 6 · Creede, CO Creede

Creede Donkey Dash 3 MilerCreede Donkey Dash 10 Miler

From $70 Open Closing Soon

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Summits Trail Runs

Sat, Jun 6 · Granby, CO Granby

Trail 6-MileHalf MarathonMarathon +2

From $60 Open Closing Soon

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Run for Breast Cancer 5K/10K/13.1 DENVER/AURORA

Sat, Jun 6 · Centennial, CO Centennial

Virtual Family Fun Run 1 Mile5K Registration5K/10K/13.1 Eco-Registration (No Shirt) +3

From $30 Open Closing Soon

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StepUp For Women And Recovery

Sat, Jun 6 · Fort Collins, CO Fort Collins

Road 5k Run/Walk - In-Person

From $40 Open Closing Soon

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2.2 for 22q Walk/Run/Ride 2026

Sat, Jun 6 · Anywhere, CO Anywhere

Virtual Virtual 2.2 for 22q 20262.2 for 22q Run/Walk/Ride (IN PERSON- ERIE, COLORADO)5k for 22q Run/Walk/Ride (IN PERSON- ERIE, COLORADO) +5

From $22 Open Closing Soon

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Grand Valley Oncology - Life In Color 5K

Sat, Jun 6 · Grand Junction, CO Grand Junction

Road Grand Valley Oncology - Life in Color 5k (Untimed walk)Grand Valley Oncology - Life In Color 5K (Timed run)

From $35 Open Closing Soon

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Nielson Challenge

Sat, Jun 6 · Colorado Springs, CO Colorado Springs

Open Closing Soon

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

Sat, Jun 6 · Centennial, CO Centennial

Virtual Family 1 Mile Fun Run5K/10K/13.1 Eco-Registration (No Shirt)Virtual Run Registration +3

From $30 Open Closing Soon

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The Valley Bottom Rio Trio

Sat, Jun 6 · Alamosa, CO Alamosa

Triathlon Kids RaceCo-Ed/Female Relay TeamSolo Female +3

From $15 Open Closing Soon 30 spots left

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Berthoud Day 5K

Sat, Jun 6 · Berthoud, CO Berthoud

Road 5K

From $30 Open Closing Soon

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J-Town Jog 5K and Kids 1 Mile Dash

Sat, Jun 6 · Johnstown, CO Johnstown

Road Kids 1 Mile Dash5K Run/Walk

From $20 Open Closing Soon 100 spots left

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Pueblo Levee Fun Run Walk

Sat, Jun 6 · Pueblo, CO Pueblo

Road Pueblo Levee Fun Run Walk

From $25 Open Closing Soon

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Flamingo Day 5K

Sun, Jun 7 · Denver, CO Denver

Road Virtual 5K5K

From $30 Open Closing Soon

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The Big Run Presented by Brooks

Sun, Jun 7 · Denver, CO Denver

Road The Big Run 5K presented by Brooks

From $40 Open Closing Soon

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The Steamboat Marathon

Sun, Jun 7 · Steamboat Springs, CO Steamboat Springs

Road 10KHalf MarathonMarathon

From $70 Open Closing Soon

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DU Dash Colorado

Sun, Jun 7 · Palmer Lake, CO Palmer Lake

Road 5K10KYouth Dash

From $30 Open Closing Soon

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Colorado 13er (Half Marathon/10k/5k)

Sun, Jun 7 · Louisville, CO Louisville

Road 5k10k13er

From $30 Open Closing Soon

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RMRR June Trophy Series

Sun, Jun 7 · Denver, CO Denver

Road 4km

From $10 Open Closing Soon

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BRR All-Comers Summer Track & Field Series #1

Thu, Jun 11 · Boulder, CO Boulder

Road 3000m100M200M +11

From $0 Open Closing Soon 15 spots left

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Hyrox Sim

Sat, Jun 13 · Frederick, CO Frederick

Half Hyrox Sim IndividualHalf Hyrox Sim (Teams of 2)Full Hyrox Sim (Individual) +1

From $55 Open

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Summer Kickoff Kids Duathlon 2026

Sat, Jun 13 · Colorado Springs, CO Colorado Springs

Triathlon Kids Duathlon

From $35 Open 50 spots left

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The Springs Downhill Mile

Sat, Jun 13 · Colorado Springs, CO Colorado Springs

Road The Springs Downhill Mile

From $15 Open

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Sam's Rainbow Run

Sat, Jun 13 · Fort Collins, CO Fort Collins

Virtual 5k Run/WalkVirtual 5kSTUDENT 5K

From $25 Open Closing Soon

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All-Out Summer Breeze

Sat, Jun 13 · Arvada, CO Arvada

Virtual VIRTUAL 5K5K10K +3

From $20 Open Closing Soon

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Guardian Games

Sat, Jun 13 · Loveland, CO Loveland

FemaleMale

From $65 Open Closing Soon 20 spots left

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Treat Trot - Denver

Sat, Jun 13 · Thornton, CO Thornton

Virtual 5K10K15K +4

From $17 Open

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Holy Hammers Hustle for Habitat

Sat, Jun 13 · Parker, CO Parker

Road Holy Hammers Hustle for Habitat

From $30 Open

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Howelsen Hill Trail Run

Sat, Jun 13 · Steamboat Springs, CO Steamboat Springs

Road 4 MileHowelsen 8 Mile

From $25.75 Open

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St Mary's Church "Loop the Lake 5K" at Lathrop State Park

Sat, Jun 13 · Walsenburg, CO Walsenburg

Road St Mary's Church Loop The Lake 5K run and walk

From $35 Open

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San Juan Trail Tri

Sat, Jun 13 · Ridgway, CO Ridgway

Triathlon San Juan Trail Tri Youth Team Entry Ages 12-18San Juan Trail Tri Team EntrySan Juan Trail Tri Individual Entry Ages 19+ +1

From $55 Open

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Stepping Stone 5K

Sat, Jun 13 · Littleton, CO Littleton

Virtual 2.5K Shortcut5K Virtual Run5K

From $30 Open Closing Soon

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The Bullfrog Splashdown

Sun, Jun 14 · Littleton, CO Littleton

Road 5K RunBullfrog Relay Dash10k Run

From $30 Open Closing Soon

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Treat Trot Colorado Springs

Sun, Jun 14 · Colorado Springs, CO Colorado Springs

Virtual 5K10K15K +4

From $17 Open

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Garden of the Gods Little Horn and Big Horn Kids Races

Sun, Jun 14 · Colorado Springs, CO Colorado Springs

Open

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