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.

Erie Half & 5k

Sun, Aug 16 · Erie, CO Erie

5kHalf Marathon

From $30 Open

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Flying Falcon Downhill Mile

Sun, Aug 16 · USAF Academy, CO USAF Academy

Downhill Mile

From $20 Closed

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Cancer League of Colorado Race 4 Research

Sun, Aug 16 · Denver, CO Denver

5K Run/Walk

From $40 Closed

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Jog in the Bog 5k

Sat, Aug 22 · Westminster, CO Westminster

Jog in the Bog 5k

From $45 Closed

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Ram Run

Sat, Aug 22 · Denver, CO Denver

Ram Run Kids Race (12 and under) 1 mileRam Run - VirtualRam Run 5k Run

From $10 Open

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2026 True Impact Ministries 5K/10K

Sat, Aug 22 · Centennial, CO Centennial

5K Run or Walk10k Run or Walk

From $39 Open 30 spots left

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Byers Peak Stampede Half Marathon & 5K Run

Sat, Aug 22 · Fraser, CO Fraser

5KHalf Marathon

From $45 Open

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Coyote Chase 5k

Sat, Aug 22 · Louisville, CO Louisville

Coyote Chase 5k

From $30 Closed

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Rebel Run 5k

Sun, Aug 23 · Denver, CO Denver

5k Walk5k Run5k Virtual Race

From $10 Open

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11th Annual Log Hill Hustle

Sun, Aug 23 · Ridgway, CO Ridgway

Hand Cycle - 5KLog Hill Hustle 5kLog Hill Hustle 10k +1

From $30 Open

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Pioneer Prairie Dog Half, 10k & 5k

Sun, Aug 23 · Westminster, CO Westminster

5k10kHalf Marathon

From $25 Open

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Run for Hope - Colorado Springs

Sat, Aug 29 · Colorado Springs, CO Colorado Springs

Memorial Mile5K Run/WalkVirtual Race

From $25 Open

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RexRun For PAWSitivity 2026 Trail Run/Walk

Sat, Aug 29 · Aurora, CO Aurora

Kids 1-mile Run/WalkFamily 5K Trail Walk5K Trail Run

From $20 Open

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Run Like the Wind 5k / 2k / Dog Jog

Sat, Aug 29 · Allenspark, CO Allenspark

2k Run / Walk5K Run

From $20 Open

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Historic Elizabeth Main Street 5K & Family Color Run

Sat, Aug 29 · Elizabeth, CO Elizabeth

Family Color Run5K Run/Walk

From $10 Open

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Rocky Mountain 5K presented by School District 11

Sat, Aug 29 · Colorado Springs, CO Colorado Springs

Rocky Mountain 5K

From $35 Open

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

Sat, Aug 29 · Centennial, CO Centennial

Family 1 Mile Fun RunVirtual Run Registration5K Registration +3

From $30 Open

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

Sat, Aug 29 · 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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Glow & Roll: Illuminate What's Possible

Sat, Aug 29 · Littleton, CO Littleton

1.6 Mile Walk/Run/Roll5K Walk/Run/RollVirtual Participant

From $35 Open

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Louisville Fall Splash & Dash

Sun, Aug 30 · Louisville, CO Louisville

Louisville Fall Splash & Dash

From $25 Closed

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Wine Run 5k at The Winery at Holy Cross Abbey

Sun, Aug 30 · Canon City, CO Canon City

5kVolunteer and Run 8:00am to 9:30amVolunteer with check-in 9:30am-11:00am then Run

From $15 Open 5 spots left

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South Fork Alder Ass Race

Sat, Sep 5 · South Fork, CO South Fork

Alder Ass Race Mini CourseAlder Ass Race Standard CourseGhost Runners

From $40 Open

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Demon Dash

Sat, Sep 5 · Arvada, CO Arvada

5K

From $25 Closed

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Golden Harvest Half Marathon & 5k/10k - Denver

Sat, Sep 5 · Westminster, CO Westminster

1 Mile5K10K +4

From $17 Open 5 spots left

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10k at 10,000 Feet

Sun, Sep 6 · Steamboat Springs, CO Steamboat Springs

5k10k

From $25 Open

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Golden Harvest Half Marathon & 5k/10k - Colorado Springs

Sun, Sep 6 · Colorado Springs, CO Colorado Springs

1 Mile5K10K +4

From $17 Open 5 spots left

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Labor Day Half Marathon

Mon, Sep 7 · Parker, CO Parker

5K10KVirtual Race +1

From $27 Open

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Oak Creek No Fun Run

Mon, Sep 7 · Oak Creek, CO Oak Creek

5K

From $25 Open

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FCA All-Abilities Labor Day 5K

Mon, Sep 7 · Loveland, CO Loveland

Mighty MileAll-Abilities Athlete 5kVirtual Run Where You Are +1

From $10 Open

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FCA All Abilities Labor Day 5K

Mon, Sep 7 · Loveland, CO Loveland

FCA All Abilities 5K and Run A Thon

From $65 Closed

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14th Annual Superhero Event

Thu, Sep 10 · Greeley, CO Greeley

1 Mile - 12 & UnderVirtual 1 Mile1 Mile - 13+ +5

From $20 Open

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Jungle Dash

Sat, Sep 12 · Loveland, CO Loveland

Jungle DashMini's Jungle Dash

From $5 Closed

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National Chocolate Day: Run for Chocolates 5K/10K/13.1 DENVER/AURORA

Sat, Sep 12 · Centennial, CO Centennial

Family 1 Mile Fun Run5K/10K/13.1 Eco-Registration (No Shirt)5K Registration +3

From $30 Open

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Spirit of the Valley 5k

Sat, Sep 12 · Grand Junction, CO Grand Junction

5k Run1K Run1K Roll +1

From $10 Open

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The Denver 5k

Sat, Sep 12 · Denver, CO Denver

5kFREE Kids Fun Run

From $0 Open

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Run for Mental Health 5K/10K/13.1 DENVER/AURORA

Sat, Sep 12 · 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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The 10th Annual Run4Hope 5K for Schools

Sat, Sep 12 · Monument, CO Monument

5K Run (Competitive Chip-Timed Race)2-Mile Color Fun Run - Individual2-Mile Color Fun Run - Family of 3 or more

From $30 Open

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For The City Network 5K

Sat, Sep 12 · Greeley, CO Greeley

For The City Network 5K

From $35 Open

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6 Dot Dash

Sat, Sep 12 · Littleton, CO Littleton

5KVirtual 5K

From $40 Open

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RMRR September 5k/10k

Sun, Sep 13 · Thornton, CO Thornton

5k10k

From $10 Open

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9/11 Heroes Run - Denver, Colorado

Sun, Sep 13 · Denver, CO Denver

1-Mile Run/Walk5K Run - PUSHER5K Ruck - Active Duty Military or First Responder +3

From $21 Open Closing Soon

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Tiger Prowl 5K

Sun, Sep 13 · Denver, CO Denver

Tiger Prowl Youth 5K---register your 12 and under child here*Tiger Prowl 5K Fun Run/WalkTiger Prowl 5K Chill Option

From $15 Open

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Severance Glow 5K Run or Walk

Fri, Sep 18 · Severance, CO Severance

Severance Glow 5K

From $30 Open Closing Soon

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Wellington STAR Foundation 5K 10K

Sat, Sep 19 · Wellington, CO Wellington

5K RunStroller or Dog 5KKids 5K (ages 3-12) +3

From $10 Open

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All Hands on Deck The Pirates 5K

Sat, Sep 19 · Colorado Springs, CO Colorado Springs

All Hands on Deck Pirates 5K

From $25 Closed

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All-Out Fall Fest

Sat, Sep 19 · Westminster, CO Westminster

VIRTUAL 5K5K10K +3

From $20 Open Closing Soon

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Gummball 5K

Sat, Sep 19 · Brighton, CO Brighton

Gummball 5K - In Honor of Fallen Deputy Heath Gumm

From $30 Open

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Lederhosen Race 2026

Sat, Sep 19 · Red Feather Lakes, CO Red Feather Lakes

Lederhosen Fun Run

From $35 Open

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Denver: Walk With Autism and Resource Fair

Sat, Sep 19 · Denver, CO Denver

Walk with Autism Denver - Ages 3 - 12 (walk or 5K run option)Walk with Autism Denver- VirtualWalk with Autism Denver- 2 and Under (walk or 5K run option) +1

From $0 Open

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Miles 4 Madison 5K & 1K

Sat, Sep 19 · Littleton, CO Littleton

1KVirtual 5K/1K5K

From $25 Open

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