Running Races in Colorado — 2026

There are 386 running races in Colorado in 2026 across 99 cities. The next upcoming race is the HRCA Happy Hour Half K in Littleton on June 19. Popular distances include 5K races, trail runs, half marathons.

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 RegistrationVirtual Run Registration +3

From $30 Open

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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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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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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

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All-Out Fa La La

Sat, Dec 5 · Westminster, CO Westminster

Virtual VIRTUAL 5K5KVIRTUAL 10K +3

From $20 Open

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Toy Drop

Sat, Dec 5 · Loveland, CO Loveland

Virtual 15KVirtual 15KVirtual 10K +3

From $30 Open

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RMRR December 4.5mi

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

Sat, Dec 12 · Centennial, CO Centennial

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

From $30 Open

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

Sat, Dec 12 · 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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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 5KVirtual 5K

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 RunVirtual Run Registration5K Registration +3

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/10K/13.1 Eco-Registration (No Shirt) +3

From $30 Open

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run.Windsor Gift Cards

Thu, Dec 31 · Windsor, CO Windsor

$25$100$75 +1

From $25 Open

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Resolute Runner 5k

Fri, Jan 1 · Arvada, CO Arvada

Road 5k

From $29 Open

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All-Out Polar Prowl

Sat, Jan 9 · Arvada, CO Arvada

Virtual 5KVIRTUAL 5KVIRTUAL 10K +3

From $20 Open

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ALMAGEDDON Winter Triathlon presented by the Alma Foundation

Sat, Jan 16 · Alma, CO Alma

Triathlon ALMAGEDDON Winter Triathlon

From $40 Open 75 spots left

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MLK Jr. Freedom Run 5K/10K/13.1 DENVER/AURORA

Sat, Jan 16 · Centennial, CO Centennial

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

From $30 Open

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All-Out Mardi Crawl

Sat, Feb 6 · Arvada, CO Arvada

Virtual VIRTUAL 5K5KVIRTUAL 5K +9

From $20 Open

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Heart Throb 5k

Sat, Feb 13 · Arvada, CO Arvada

Road 5k

From $25 Open

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Highlands Ranch 5k

Sun, Feb 28 · Highlands Ranch, CO Highlands Ranch

Road 5k5k

From $33 Open

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Erin Go Bragh 7.77k

Sat, Mar 13 · Westminster, CO Westminster

Road 7.77k7.77k

From $33 Open

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All-Out Spring Fever

Sun, Mar 21 · Golden, CO Golden

Virtual VIRTUAL 5KVIRTUAL 5K5K +9

From $20 Open

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Central Park 5k

Sun, Mar 28 · Denver, CO Denver

Road 5k Run/Walk5k Run/Walk

From $20 Open

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Donut Dash

Sun, Apr 4 · Denver, CO Denver

Road 5K5KVirtual 5K +1

From $30 Open

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NoCo Urban Ultra & Relay

Sun, Apr 11 · Bellvue, CO Bellvue

Ultra 50 Mile (Relay)50 Mile (Individual)50 Mile (Relay) +5

From $65 Open

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All-Out Beat the Heat

Sat, Apr 24 · Westminster, CO Westminster

Virtual 5K5KVIRTUAL 5K +9

From $20 Open

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Unicorn 5k (Denver-East)

Sun, Apr 25 · Denver, CO Denver

Road 5k5k1/2 Mile(ish) Saunter +1

From $13 Open

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Greenland Trail Races

Sat, May 1 · Larkspur, CO Larkspur

Ultra 4M Trail Races4 Mile8M Trail Race +9

From $25 Open

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Colterris Wine Run 5k

Sat, May 8 · Palisade, CO Palisade

Road 5k5k

From $30 Open

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50 States Half Marathon Club General Membership

Fri, Feb 10 · Colorado Springs, CO Colorado Springs

Road 50 States Half Marathon Club General Membership

From $85 Open

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Fifty States Half Marathon Club Life Membership

Sat, Feb 11 · Colorado Springs, CO Colorado Springs

Road Fifty States Half Marathon Club Life Membership

From $429 Open

Register →