Running Races in Colorado 2026 | Find & Register

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

Sat, Oct 10 · Centennial, CO Centennial

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

From $30 Open Closing Soon

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Faith & Blue 5K

Sat, Oct 10 · Fort Morgan, CO Fort Morgan

Open

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Breckenridge RunFest

Sat, Oct 10 · Breckenridge, CO Breckenridge

Road Kids & Family Mile5K10K +2

From $25 Open Closing Soon

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Manitou 5K

Sat, Oct 10 · Manitou Springs, CO Manitou Springs

Road Manitou 5KManitou 5K 18 and under

From $25 Open Closing Soon

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Dialysis Dash 5K- Canceled

Sat, Oct 10 · Grand Junction, CO Grand Junction

Road 5K Dialysis Dash Run

From $20 Open Closing Soon

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

Sat, Oct 10 · Centennial, CO Centennial

Virtual Family 1 Mile Fun Run5K Registration5K/10K/13.1 Eco-Registration (No Shirt) +3

From $30 Open Closing Soon

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The Long View Marathon

Sat, Oct 10 · Fort Collins, CO Fort Collins

Road The Long View 5kThe Long View Half MarathonThe Long View Marathon

From $35 Open Closing Soon

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Boulder XC Series Meet 1

Sat, Oct 10 · Boulder, CO Boulder

Road 1K XC - 10 Years & Under3K XC - 16 Years & Under5K XC - Open

From $10 Open Closing Soon

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Footsteps for Families 5k Fun Run & Concert

Sat, Oct 10 · Windsor, CO Windsor

Virtual Footsteps for Families 5k Fun Run- 12 and Under Youth RegistrationFootsteps for Families 5k Fun Run-VIRTUAL EVENTFootsteps for Families 5k Fun Run and Concert

From $20 Open Closing Soon

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ASDAsh 5K to Beat Tooth Decay

Sat, Oct 10 · Aurora, CO Aurora

Road ASDAsh 5K to Beat Tooth Decay

From $30 Open Closing Soon

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Kipling Villas 5K - 2026

Sat, Oct 10 · Littleton, CO Littleton

Road 5K Run

From $15 Open Closing Soon

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Your Story Isn't Over 5k/10k/Kids 1-Mile

Sun, Oct 11 · Littleton, CO Littleton

Virtual Your Story Isn't Over Kids RunYour Story Isn't Over Virtual 5kYour Story Isn't Over 5k +1

From $20 Open Closing Soon

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The Moony Pride 5k

Sun, Oct 11 · Fort Collins, CO Fort Collins

Open Closing Soon

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EDT XC Showdown

Sun, Oct 11 · Aurora, CO Aurora

Road 8&U Boys/Girls 2k11/12 Boys/Girls 3kCommunity/Coaches 3K +2

From $25 Open Closing Soon

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Kitty Beanz Cat 5k

Sun, Oct 11 · Aurora, CO Aurora

Road Kitty Beanz Cat 5k

From $35 Open Closing Soon

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Westy Half & 5k

Sun, Oct 11 · Westminster, CO Westminster

Road 5kHalf Marathon

From $30 Open Closing Soon

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Durango Marathon

Sun, Oct 11 · Durango, CO Durango

Road Durango Marathon Weekend 5kDurango Half MarathonDurango Marathon

From $20 Open Closing Soon

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Longmonster Dash 5k

Sat, Oct 17 · Longmont, CO Longmont

Road Longmonster Dash 5k

From $40 Open Closing Soon

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The Great Pumpkin Haul

Sat, Oct 17 · Fruita, CO Fruita

Road Solo hauler entryCharity entryKids 4 and under- FREE! +2

From $0 Open Closing Soon

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Indian Creek Trail Runs

Sat, Oct 17 · Sedalia, CO Sedalia

Trail 5-Mile15-Mile55k +1

From $30 Open Closing Soon

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Chili Chase

Sat, Oct 17 · Durango, CO Durango

Trail Chili Chase

From $40 Open Closing Soon 49 spots left

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The Great Trailhead Foot Race 5 & 10 Miler

Sat, Oct 17 · Lakewood, CO Lakewood

Road 5 Miler10 Mile

From $55 Open Closing Soon

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Blue Sky Trail Marathon & Half Marathon

Sat, Oct 17 · Fort Collins, CO Fort Collins

Trail Blue Sky Trail Half MarathonBlue Sky Trail Marathon

From $90 Open Closing Soon

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Running Scared 5K/13K - Denver

Sat, Oct 17 · Littleton, CO Littleton

Virtual Virtual Scaredy Cat 5KScaredy Cat 5KScaredy Cat 5K-No Shirt +5

From $30 Open Closing Soon

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Living Water 5K and Family Fun Walk/Jog

Sat, Oct 17 · Denver, CO Denver

Road Living Water 1 Mile Fun Walk / JogLiving Water 5k Run / Walk

From $20 Open Closing Soon

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Hyrox Sim

Sat, Oct 17 · Frederick, CO Frederick

Half Hyrox Sim (Teams of 2)Full Hyrox Sim (Teams of 2)Full Hyrox Sim (Individual) +5

From $45 Open Closing Soon

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Fall Harvest Kids Duathlon

Sun, Oct 18 · Colorado Springs, CO Colorado Springs

Triathlon Kids Duathlon

From $40 Open Closing Soon 59 spots left

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FCRC at Open Streets

Sun, Oct 18 · Fort Collins, CO Fort Collins

Open Closing Soon

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Halloween Hustle for Charity

Sun, Oct 18 · Glenwood Springs, CO Glenwood Springs

Road 1.5K TRICK-OR-TREAT FUN RUN/WALK5.5K FUN RUN/WALK

From $30 Open Closing Soon

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Running Scared 5K/13K - Colorado Springs

Sun, Oct 18 · Colorado Springs, CO Colorado Springs

Virtual Scaredy Cat 5KVirtual Scaredy Cat 5KScaredy Cat 5K-No Shirt +5

From $30 Open Closing Soon

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The Palmer Lake .5K (Yes "Point" 5)

Sun, Oct 18 · Palmer Lake, CO Palmer Lake

Road .5 (yes point 5) K.5k Dog Participant.5k Child (Under 12)

From $15 Open Closing Soon

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DU Crimson Classic 5K Run/1.5 Mile Walk

Wed, Oct 21 · Denver, CO Denver

Road Volunteer One Hour - Day of Crimson Classic

From $0 Open Closing Soon

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Fall Skyline Traverse

Sat, Oct 24 · Boulder, CO Boulder

Road Fall Skyline Traverse

From $25 Open Closing Soon 100 spots left

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Race to Cure Sarcoma Denver

Sat, Oct 24 · Denver, CO Denver

Virtual 5K Run or 1 Mile Walk (Untimed) - Child (Ages 6-12)5K Run or 1 Mile Walk (Untimed) - AdultVirtual - Adult +3

From $10 Open Closing Soon

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Zedikiah Scholarship 5K

Sat, Oct 24 · Denver, CO Denver

Open

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YMCA Creepy Crawl 5K presented by Corwin Honda

Sat, Oct 24 · Palmer Lake, CO Palmer Lake

Road Creepy Crawl 5K

From $40 Open

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McGraw Memorial Park "Quick Draw @ McGraw" 2.1 & 12.6 Mile Trail Races

Sat, Oct 24 · Bailey, CO Bailey

Trail 2 Mile Trail Walk or Walk/Run2 Mile *VIRTUAL* Trail Run/ Walk2 Mile Trail Run +1

From $25 Open Closing Soon

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Apex Foundation Trick or Trot 5K & Halloween Hunt Powered by REP Fitness

Sat, Oct 24 · Arvada, CO Arvada

Virtual Kids' 1-mile Halloween Hunt powered by REP FitnessTrick or Trot VIRTUAL 5K powered by REP FitnessTrick or Trot 5K powered by REP Fitness

From $10 Open

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Paws for Life Fun Run/Walk 5K - Sponsored by Imperial Memorial Gardens

Sat, Oct 24 · Pueblo, CO Pueblo

Open

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Mancos Cowboy Half Marathon, 5K, and Fun Run

Sat, Oct 24 · Mancos, CO Mancos

Road Mancos 5KMancos Cowboy Half Marathon

From $25 Open Closing Soon 74 spots left

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Hoofin' It Through the Hollows 5K

Sat, Oct 24 · Centennial, CO Centennial

Road 5K

From $15 Open Closing Soon

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Ghosts and Goblins 5K/10K

Sun, Oct 25 · Denver, CO Denver

Road 5KVirtual Race10K

From $30 Open Closing Soon

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Fleet Feet Colorado Springs Halloween Fun Run

Fri, Oct 30 · Colorado Springs, CO Colorado Springs

Open

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

Sat, Oct 31 · Centennial, CO Centennial

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

From $30 Open

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Halloween Trick or Trot Run 5K/10K/13.1 DENVER/AURORA

Sat, Oct 31 · Centennial, CO Centennial

Virtual Family 1 Mile Fun Run5K RegistrationVirtual Run Registration +3

From $30 Open

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Colleen De Reuck XC Classic

Sat, Oct 31 · Boulder, CO Boulder

Road 1K XC - 10 Years & Under3K XC - 16 Years & Under5K XC - Open

From $15 Open

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Turkey Trot

Sat, Oct 31 · Center, CO Center

Virtual 2026 Turkey Trot Virtual2027 Turkey TrotPie Eating Contest!

From $5 Open

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Spooky Sprint - Colorado Springs

Sat, Oct 31 · Colorado Springs, CO Colorado Springs

Virtual 5k10KSpooky Sprint 10K 2027 +7

From $17 Open Closing Soon 5 spots left

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Halloween Fun 5k

Sat, Oct 31 · Steamboat Springs, CO Steamboat Springs

Road Fun 5K

From $25.75 Open

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I Ain't Scared (of 5k)

Sat, Oct 31 · Thornton, CO Thornton

Road 5k

From $29 Open Closing Soon

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Running Races in Colorado — 2026

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