Running Races in Colorado — 2026

There are 422 running races in Colorado in 2026 across 109 cities. The next upcoming race is the Middle School San Juan Basin League Meet in Ridgway on April 24. Popular distances include 5K races, trail runs, half marathons.

Hot Laps - Denver

Fri, Apr 24 · Denver, CO Denver

Road Hot Laps

From $10 Open Closing Soon

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

Sat, Apr 25 · Centennial, CO Centennial

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

From $30 Open Closing Soon

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2026 Manion WOD - B3 Nutrition + Fitness

Sat, Apr 25 · Fort Morgan, CO Fort Morgan

Manion WOD Workout

From $34 Open Closing Soon 16 spots left

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Alpine Autism Center 19th Annual "Run for the One" 5k Walk/Run

Sat, Apr 25 · Colorado Springs, CO Colorado Springs

Road 5K (Adult 13 and up)5K (Child 5 and Under)5K (Child 6-12)

From $0 Open Closing Soon

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SOAR 5K

Sat, Apr 25 · Golden, CO Golden

Road SOAR 5K WalkSOAR 5K Run

From $15 Open Closing Soon

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

Sat, Apr 25 · 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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2026 Manion WOD - Coal Creek CrossFit

Sat, Apr 25 · Superior, CO Superior

Manion WOD Workout

From $34 Open Closing Soon 20 spots left

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Bigfoot Half Marathon

Sat, Apr 25 · Estes Park, CO Estes Park

Road 5K Run/WalkHalf Marathon

From $45 Open Closing Soon

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Strut for Mutts 2026

Sat, Apr 25 · Rifle, CO Rifle

Road Strut for Mutts 2026

From $30 Open Closing Soon

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Runs With Scissors Races

Sat, Apr 25 · Brighton, CO Brighton

Virtual Half MarathonMarathon50K Ultra Marathon +3

From $35 Open Closing Soon 35 spots left

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2026 Flying Pig 5K

Sun, Apr 26 · Fort Collins, CO Fort Collins

Road 2026 Flying Pig 5K

From $40 Open Closing Soon

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Funner to be a Runner

Sun, Apr 26 · Pueblo, CO Pueblo

Road 1.2-mile run (grades 3 & under)50-yard dash1.2-mile run (grades 4-8)

From $0 Open Closing Soon

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Unicorn 5k (Denver-East)

Sun, Apr 26 · Denver, CO Denver

Road 5k1/2 Mile(ish) Saunter

From $13 Open Closing Soon

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Blue Heron Half & 5K

Sun, Apr 26 · Brighton, CO Brighton

Road 5kHalf-Marathon

From $30 Open Closing Soon

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Pueblo Spring Runoff

Sun, Apr 26 · Pueblo, CO Pueblo

Road 5K Run10M Run10K Run

From $35 Open Closing Soon

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2026 Manion WOD - Colorado Spartans

Sun, Apr 26 · Parker, CO Parker

Manion WOD WorkoutManion WOD Ruck Workout

From $34 Open Closing Soon

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2026 Dash & Dine 5k Run Series

Tue, Apr 28 · Boulder, CO Boulder

Road #3 May 12#1 April 28#4 May 19 +2

From $35 Open Closing Soon

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Everest Challenge

Fri, May 1 · U S A F Academy, CO U S A F Academy

Virtual Everest Challenge

From $20 Open

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CollaBEERation 5k & Brew Fest Party

Sat, May 2 · Longmont, CO Longmont

Road 9th edition CollaBEERation Brew Fest Party - Brew Fest Attendee Only9th edition CollaBEERation 5k & Brew Fest Party - WAVE A (Running 25 Minutes & Under)9th edition CollaBEERation 5k & Brew Fest Party - WAVE B (Run/Walk Over 25+ Minutes)

From $40 Open Closing Soon 75 spots left

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MayFest Fun Run

Sat, May 2 · Parachute, CO Parachute

Road MayFest Color Run

From $30 Open Closing Soon

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Nielson Challenge

Sat, May 2 · Colorado Springs, CO Colorado Springs

Open Closing Soon

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DU Spring Sprint 5k

Sat, May 2 · Gunnison, CO Gunnison

Road DU Spring Sprint

From $10 Open Closing Soon

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CCPC's Walk for Life 2026

Sat, May 2 · Canon City, CO Canon City

Walk for Life

From $25 Open Closing Soon

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High Line Canal 5K/10K Run

Sat, May 2 · Centennial, CO Centennial

Road High Line Canal Run 5KHigh Line Canal Run 10KHigh Line Canal Run Both 5K & 10K

From $35 Open Closing Soon

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Sunrise Marathon 5K/10K/13.1 DENVER/AURORA

Sat, May 2 · Centennial, CO Centennial

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

From $30 Open Closing Soon

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Cinco De Mayo Run 5K/10K/13.1 DENVER/AURORA

Sat, May 2 · 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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FireKracker 5K Training

Sat, May 2 · Fort Collins, CO Fort Collins

Open

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Greenland Trail Races

Sat, May 2 · Larkspur, CO Larkspur

Ultra 4M Trail Races8M Trail Race25K Trail Race +3

From $25 Open Closing Soon

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Adams County Foster Care 5K Run/Walk and 1 mile fun run

Sat, May 2 · Brighton, CO Brighton

Road 1 Mile Fun Run5K Family Registration (up to 5 family members at same address)5K Foster Family Registration (up to 5 family members at same address) +2

From $0 Open Closing Soon

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Longmont Half & 5k (LM Half)

Sun, May 3 · Longmont, CO Longmont

Road 5kHalf Marathon

From $35 Open Closing Soon

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The Colorado Marathon

Sun, May 3 · Fort Collins, CO Fort Collins

Road 5K10KHalf Marathon +1

From $35 Open Closing Soon

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Hayden Cog Run

Sun, May 3 · Hayden, CO Hayden

Road 5k Run8.4 Mile Run

From $25 Open Closing Soon

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DU Splash & Dash

Sun, May 3 · Denver, CO Denver

Triathlon DU Splash & Dash - Kids RaceDU Splash & Dash - Age Group RaceDU Splash & Dash - Collegiate Race

From $20 Open Closing Soon

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RMRR May Trophy Series

Sun, May 3 · Denver, CO Denver

Road 5k5mi

From $10 Open Closing Soon

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Frank Shorter Track Classic

Sun, May 3 · Longmont, CO Longmont

Road 1-Mile - 20 years & older1-Mile - 12 & under1-Mile - 13 to 19 years +14

From $10 Open Closing Soon

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2026 Altitude Elementary Moose Mudder

Sun, May 3 · Aurora, CO Aurora

Road Clubs & Activities 5KTeachers & Staff 5K5K

From $0 Open Closing Soon

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Water Wells for Africa 5k Walk/Run

Sun, May 3 · Silt, CO Silt

Road Water Wells for Africa 5k Run/Walk

From $35 Open Closing Soon

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Emerge 5K

Sun, May 3 · Boulder, CO Boulder

Open Closing Soon

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May 7 - WMBA Kickoff Party @ Red Rocks Barn - COWGIRL theme!!

Thu, May 7 · Colorado Springs, CO Colorado Springs

2026 WMBA kickoff party - May 7

From $0 Open

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Run For The Trees - 2 Mile Fun Run

Sat, May 9 · Loveland, CO Loveland

Virtual Run For The Trees Fun RunVirtual Run for the Trees Fun Run

From $20 Open

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Hometown Half Marathon & 5k/10k - Colorado Springs

Sat, May 9 · Colorado Springs, CO Colorado Springs

Virtual 1 Mile5kVirtual Run +4

From $17 Open 5 spots left

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Parker Parks and Recreation Miles Over the Meadow Mother’s Day 5K & Family Fun Trek

Sat, May 9 · Parker, CO Parker

Road Family Fun Trek5K

From $36 Open Closing Soon

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CEROX IRON + IRON X

Sat, May 9 · Frederick, CO Frederick

Cerox Iron Teams of 2Cerox Iron IndividualCerox Iron X Individual +1

From $45 Open

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The Great CO74 Trail Run

Sat, May 9 · Kittredge, CO Kittredge

Trail The Great CO74 Trail RunThe Great CO74 Kids Run

From $20 Open Closing Soon 35 spots left

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Kadet Football 5K

Sat, May 9 · Colorado Springs, CO Colorado Springs

Road 5K

From $32 Open

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Run for the Trees - BSBF 2-Mile Run

Sat, May 9 · Loveland, CO Loveland

Road BSBF 2 Mile Fun Run

From $15 Open

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2026 Five Star 5K, Mile of Smiles, and Wellness Festival

Sat, May 9 · Brighton, CO Brighton

Road Mile of SmilesFive Star 5K Run/Walk/Roll

From $5 Open

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Celebration of Moms 5k & Family Fun Run

Sat, May 9 · Buena Vista, CO Buena Vista

Road Celebration of Moms 5k

From $15 Open

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Colterris Wine Run 5k

Sat, May 9 · Palisade, CO Palisade

Road 5k

From $30 Open Closing Soon

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Women's Distance Festival 5K

Sat, May 9 · Colorado Springs, CO Colorado Springs

Road 5K Run

From $20 Open

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