5K Races in Colorado — 2026

There are 287 5K races in Colorado scheduled for 2026. The next is the Yampa River Festival 2026 in Steamboat Springs on May 30. Colorado 5K races run primarily May.

Yampa River Festival 2026

Sat, May 30 · Steamboat Springs, CO Steamboat Springs

Fish Creek Kayak Race (Test)SUP Downriver Race - Rich Weiss ParkCrazy River Dog - D-Hole +11

From $0 Open Closing Soon 10 spots left

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36th Annual Fire Hydrant 5K & Expo

Sat, May 30 · Fort Collins, CO Fort Collins

Closed

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2026 MTHCF 5K

Sat, May 30 · Fruita, CO Fruita

2026 Mike The Headless Chicken 5K

From $35 Open Closing Soon

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M1LE Nation Challenge

Sat, May 30 · Anywhere, CO Anywhere

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

From $10 Open Closing Soon

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

Sat, May 30 · Trinidad, CO Trinidad

Standard Registration

From $25 Open Closing Soon

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Dash4Hope 2026

Sat, May 30 · Greeley, CO Greeley

Dash4Hope 2026

From $15 Open Closing Soon

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Weld Your Mettle Running Festival

Sat, May 30 · Eaton, CO Eaton

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

From $35 Open Closing Soon

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

Sun, May 31 · Englewood, CO Englewood

1 Mile Fun Run - Virtual1 Mile Fun Run - OnsiteRunning for Rescues! 1 Mile - Onsite - Girls on the Run or School Run Clubs +7

From $5 Open Closing Soon

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Endorphins for Orphans Virtual 5K

Mon, Jun 1 · Colorado Springs, CO Colorado Springs

Virtual 5K

From $75 Open

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Love Hard 5k Fun Run

Mon, Jun 1 · Denver, CO Denver

London Love Hard 5kBoston Love Hard 5kSan Diego Love Hard 5k +5

From $8.5 Open Closing Soon

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The Barmen Mile

Wed, Jun 3 · Arvada, CO Arvada

The Barmen Mile - Global Running Day

From $0 Open Closing Soon

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The Red Schoolhouse Run

Thu, Jun 4 · Louisville, CO Louisville

The Red Schoolhouse Run

Closed

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

Sat, Jun 6 · Centennial, CO Centennial

Family 1 Mile Fun Run5K RegistrationVirtual Run Registration +3

From $30 Open Closing Soon

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Berthoud Day 5K

Sat, Jun 6 · Berthoud, CO Berthoud

5K

From $30 Open Closing Soon

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Grand Valley Oncology - Life In Color 5K

Sat, Jun 6 · Grand Junction, CO Grand Junction

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

From $35 Open Closing Soon

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Pueblo Levee Fun Run Walk

Sat, Jun 6 · Pueblo, CO Pueblo

Pueblo Levee Fun Run Walk

From $25 Open Closing Soon

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Aiden's Adventure 5k

Sat, Jun 6 · Colorado Springs, CO Colorado Springs

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

From $10 Open Closing Soon

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J-Town Jog 5K and Kids 1 Mile Dash

Sat, Jun 6 · Johnstown, CO Johnstown

Kids 1 Mile Dash5K Run/Walk

From $20 Open Closing Soon 100 spots left

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The Valley Bottom Rio Trio

Sat, Jun 6 · Alamosa, CO Alamosa

Kids RaceCo-Ed/Female Relay TeamTeen Relay Team +3

From $15 Open Closing Soon 30 spots left

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2.2 for 22q Walk/Run/Ride 2026

Sat, Jun 6 · Anywhere, CO Anywhere

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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StepUp For Women And Recovery

Sat, Jun 6 · Fort Collins, CO Fort Collins

5k Run/Walk - In-Person

From $40 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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Run for Breast Cancer 5K/10K/13.1 DENVER/AURORA

Sat, Jun 6 · Centennial, CO Centennial

Family Fun Run 1 MileVirtual Run Registration (5K/10K/13.1)5K Registration +3

From $30 Open Closing Soon

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

Sun, Jun 7 · Louisville, CO Louisville

5k10k13er

From $30 Open Closing Soon

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RMRR June Trophy Series

Sun, Jun 7 · Denver, CO Denver

4km

From $10 Open Closing Soon

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The Big Run Presented by Brooks

Sun, Jun 7 · Denver, CO Denver

The Big Run 5K presented by Brooks

From $40 Open Closing Soon

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DU Dash Colorado

Sun, Jun 7 · Palmer Lake, CO Palmer Lake

5K10KYouth Dash

From $30 Open Closing Soon

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BRR All-Comers Summer Track & Field Series #1

Thu, Jun 11 · Boulder, CO Boulder

3000m100M200M +11

From $0 Open Closing Soon 15 spots left

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Tutu Dash 5K

Sat, Jun 13 · Broomfield, CO Broomfield

Kids RunVirtual 5K5K Run/Walk

From $20 Closed

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The Springs Downhill Mile

Sat, Jun 13 · Colorado Springs, CO Colorado Springs

The Springs Downhill Mile

From $15 Open

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

Sat, Jun 13 · Walsenburg, CO Walsenburg

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

From $35 Open

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Holy Hammers Hustle for Habitat

Sat, Jun 13 · Parker, CO Parker

Holy Hammers Hustle for Habitat

From $30 Open

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Sam's Rainbow Run

Sat, Jun 13 · Fort Collins, CO Fort Collins

Virtual 5k5k Run/WalkSTUDENT 5K

From $25 Open Closing Soon

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All-Out Summer Breeze

Sat, Jun 13 · Arvada, CO Arvada

VIRTUAL 5K5K10K +3

From $20 Open Closing Soon

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Stepping Stone 5K

Sat, Jun 13 · Littleton, CO Littleton

2.5K Shortcut5K5K Virtual Run

From $30 Open Closing Soon

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Summer Kickoff Kids Duathlon 2026

Sat, Jun 13 · Colorado Springs, CO Colorado Springs

Kids Duathlon

From $35 Open 50 spots left

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Howelsen Hill Trail Run

Sat, Jun 13 · Steamboat Springs, CO Steamboat Springs

4 MileHowelsen 8 Mile

From $25.75 Open

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Treat Trot - Denver

Sat, Jun 13 · Thornton, CO Thornton

5K10K15K +4

From $17 Open

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The Bullfrog Splashdown

Sun, Jun 14 · Littleton, CO Littleton

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

5K10K15K +4

From $17 Open

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HRCA Happy Hour Half K

Fri, Jun 19 · Littleton, CO Littleton

Half K

From $35 Open Closing Soon

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Parker Parks and Recreation Dash Across the Dam Father’s Day 5K

Sat, Jun 20 · Parker, CO Parker

5K

From $40 Open Closing Soon

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Fatherhood 5k Family Run/Walk

Sat, Jun 20 · Colorado Springs, CO Colorado Springs

Youth 8-18 yrsFamily Pricing (Immediate Family)Adult 5k

From $15 Open Closing Soon

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

Sat, Jun 20 · 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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Mustang Mile 2026

Sat, Jun 20 · Kremmling, CO Kremmling

Speedy Joe- For the most fierce competitorsSenior Joe- For the 65+ crowdLittle Joe- For the kids! +1

From $10 Open

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Havoc at HartFit OCR 3k

Sat, Jun 20 · Peyton, CO Peyton

KIDS HartFit HAVOC 1 MileHavoc at HartFit OCR 3k

From $29.99 Open 10 spots left

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Run for the River 5k Boulder

Sat, Jun 20 · Boulder, CO Boulder

Run for the River 5k Boulder

From $25 Open

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2026 Doggie Dash

Sat, Jun 20 · Colorado Springs, CO Colorado Springs

2026 Doggie Dash 5K

From $25 Open

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Unicorn 5k (North)

Sat, Jun 20 · Thornton, CO Thornton

1/2 (ish) Mile Saunter - untimed5k Run/Walk

From $16 Open Closing Soon

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Sierra's 5K Run/Walk Race Against Meningitis

Sat, Jun 20 · Loveland, CO Loveland

5K RunKids Fun Run (10 & Under)

From $10 Open

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