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.

Ghosts and Goblins 5K/10K

Sun, Oct 25 · Denver, CO Denver

Road Virtual Race5K10K

From $30 Open

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Foundry Halloween 5k

Sat, Oct 31 · Steamboat Springs, CO Steamboat Springs

Road Foundry 5K

From $25.75 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 RegistrationVirtual 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/10K/13.1 Eco-Registration (No Shirt)5K Registration +3

From $30 Open

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Halloween Fun Run 5k & 1mile - Zombie Theme

Sat, Oct 31 · Idaho Springs, CO Idaho Springs

Road 1 Mile Fun Run5k Fun Run

From $20 Open

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Spooky Sprint - Colorado Springs

Sat, Oct 31 · Colorado Springs, CO Colorado Springs

Virtual 5k10K1 Mile +4

From $17 Open 5 spots left

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I Ain't Scared (of 5k)

Sat, Oct 31 · Thornton, CO Thornton

Road 5k

From $29 Open

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RMRR November Trophy Series

Sun, Nov 1 · Denver, CO Denver

Road 5k15k

From $10 Open

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Feet for Justice Run

Sun, Nov 1 · Denver, CO Denver

Road Virtual Runner5K10K +1

From $10 Open

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All-Out Kooky-Spooky

Sun, Nov 1 · Golden, CO Golden

Virtual 5KVIRTUAL 5KVIRTUAL 10K +3

From $20 Open

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Alamosa Veterans Memorial Park Race

Sat, Nov 7 · Alamosa, CO Alamosa

Road Alamosa Veterans Memorial Park 10kAlamosa Veterans Memorial Park 5k

From $20 Open

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Colorado 24 Hour Run

Sat, Nov 7 · Fort Collins, CO Fort Collins

Road 12 Hour Relay6 Hour Relay24 Hour +3

From $90 Open

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Turkey Trails- Denver

Sat, Nov 7 · Littleton, CO Littleton

Virtual 1 Mile5K10K +4

From $17 Open 5 spots left

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Bell Ringer 2 Miler

Sat, Nov 7 · Loveland, CO Loveland

Virtual Virtual 2 MilerRuck DivisionBell Ringer 2 Miler

From $20 Open

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HRCA Backcountry Wilderness Half Marathon

Sat, Nov 7 · Lone Tree, CO Lone Tree

Trail Half Marathon

From $65 Open

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City Park Classic (5k/10k & 1 Mile Walk of Hope for Pancreatic Cancer Research)

Sat, Nov 7 · Denver, CO Denver

Road 1 Mile (ish) Walk of Hope (untimed)5k Run/Walk10k Run

From $16 Open

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Colorado Springs Veterans Day 5k

Sun, Nov 8 · Colorado Springs, CO Colorado Springs

Road Kids 15 yrs and under 5kColorado Springs Veterans Day 5K

From $15 Open Closing Soon

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Turkey Trails - Colorado Springs

Sun, Nov 8 · Colorado Springs, CO Colorado Springs

Virtual 1 Mile5k10k +4

From $17 Open 5 spots left

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

Sat, Nov 14 · Centennial, CO Centennial

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

From $30 Open

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Colorado State Youth Cross Country Championships

Sat, Nov 14 · Aurora, CO Aurora

Road Boys 8 & Under (Born 2018+) - 2KM (1.24 Miles)Girls 8 & Under (Born 2018+) - 2KM (1.24 Miles)Boys 9 & 10 (Born 2016-2017) - 3K (1.86 Miles) +5

From $25.99 Open

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Denver Veterans Day Run

Sat, Nov 14 · Denver, CO Denver

Road 5K Run/Walk10K Rippetoe Rucksack Challenge10K Run/Walk

From $45 Open

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Veterans Day Freedom Run 5K/10K/13.1 DENVER/AURORA

Sat, Nov 14 · Centennial, CO Centennial

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

From $30 Open

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Pumpkin Pie 5K/10K

Sat, Nov 21 · Denver, CO Denver

Road 5KVirtual Race10K

From $30 Open

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TURKEY TREK (13.1, 10k, 5k & 2k)

Sat, Nov 21 · Arvada, CO Arvada

Road 2k Turkey Toddle (un-timed)5k Turkey Trot10k Turkey Trek +1

From $26 Open

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AdventHealth Avista Louisville Turkey Trot

Thu, Nov 26 · Louisville, CO Louisville

Road AdventHealth Avista Louisville Turkey Trot 2026

From $20 Open

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Pelican Lakes Turkey Trot

Thu, Nov 26 · Windsor, CO Windsor

Road 5k run5K walk

From $30 Open

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Broomfield Turkey Day 5K/10K

Thu, Nov 26 · Broomfield, CO Broomfield

Road 5k10kKids Fun Run (Approx 1/2 Mile) UNTIMED

From $17 Open

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Parker Parks and Recreation Turkey Day 5K FUN Run/Walk

Thu, Nov 26 · Parker, CO Parker

Road 5K

From $38 Open

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The Pilgrimage Run 2026

Thu, Nov 26 · Erie, CO Erie

Road 2 Mile Run / Walk4 Mile Run (Chip Timed)4 Mile Run +1

From $25 Open

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NCMC Turkey Trot

Thu, Nov 26 · Greeley, CO Greeley

Road 2026 NCMC Turkey Trot 2K2026 NCMC Turkey Trot 5K

From $30 Open

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Huffin' for Stuffin' 2-Mile Fun Run

Thu, Nov 26 · Loveland, CO Loveland

Virtual Virtual 2-Mile Fun Run2 Mile Fun Run

From $20 Open 5 spots left

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Thanksgiving Gobble Trot Run 5K/10K/13.1 DENVER/AURORA

Sat, Nov 28 · 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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Coffee Lovers Run 5K/10K/13.1 DENVER/AURORA

Sat, Nov 28 · Centennial, CO Centennial

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

From $30 Open

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Toy Drop

Sat, Dec 5 · Loveland, CO Loveland

Virtual 10KVirtual 15KVirtual 10K +3

From $30 Open

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Candy Cane Course - Colorado Springs

Sat, Dec 5 · Colorado Springs, CO Colorado Springs

Virtual 1 Mile5K10K +4

From $22 Open 5 spots left

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All-Out Fa La La

Sat, Dec 5 · Westminster, CO Westminster

Virtual 5KVIRTUAL 5KVIRTUAL 10K +3

From $20 Open Closing Soon

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Onesie Dash

Sat, Dec 5 · Red Feather Lakes, CO Red Feather Lakes

Road Onesie Dash

From $35 Open

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Chasing Santa 5k/Cycling Santa Toy Drive Presented by: Springs Law Group

Sat, Dec 5 · Colorado Springs, CO Colorado Springs

Road Adult Chasing Santa 5kChasing Santa 5k KIDS 15 yrs and underToddlers Chasing Santa +5

From $0 Open Closing Soon

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RMRR December Trophy Series

Sun, Dec 6 · Denver, CO Denver

Road 4.5 mi

From $10 Open

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Candy Cane Course - Denver

Sun, Dec 6 · Westminster, CO Westminster

Virtual 1 Mile5k10k +4

From $22 Open 5 spots left

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Rock Canyon Half Marathon- 40th Anniversary Run!

Sun, Dec 6 · Pueblo, CO Pueblo

Road Mini Rock Canyon 5k1/2 marathon

From $35 Open

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

Sat, Dec 12 · 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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WinterFest 5k & Fun Run

Sat, Dec 12 · Thornton, CO Thornton

Road 5k Run/Walk -TIMED and ScoredFun Run/Walk (Untimed, approx .75 miles)

From $12 Open

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

Sat, Dec 12 · Centennial, CO Centennial

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

From $30 Open

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Santa Catch 5k & 10k

Sat, Dec 12 · Windsor, CO Windsor

Road 1 Mile Kids Fun RunSanta Catch 5KSanta Catch 10k

From $15 Open

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Santa's Dash for Ca$h

Sat, Dec 19 · Denver, CO Denver

Road 5k

From $29 Open

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Ugly Sweater 5K

Sun, Dec 20 · Denver, CO Denver

Road Virtual 5K5K

From $30 Open

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New Year's Run 5K/10K/13.1 DENVER/AURORA

Sat, Dec 26 · Centennial, CO Centennial

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

From $30 Open

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A Merry Christmas Run 5K/10K/13.1 DENVER/AURORA

Sat, Dec 26 · Centennial, CO Centennial

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

From $30 Open

Register →

run.Windsor Gift Cards

Thu, Dec 31 · Windsor, CO Windsor

$100$25$50 +1

From $25 Open

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