# 10K Races in Colorado (2026)

> 102 upcoming 10K races across Colorado.

- **Page:** https://runthis.run/races/colorado/10k

## Races

- **[Choice City Running Festival](https://runthis.run/event/rs-127976-choice-city-running-festival)** — Thu, Aug 6, 2026 · 7:00 PM CDT · Fort Collins, CO · 1 mile / Marathon / 10K / 5K
- **[Summer Sizzler- Denver](https://runthis.run/event/rs-122260-summer-sizzler-denver)** — Fri, Aug 7, 2026 · 7:00 PM CDT · Thornton, CO · 50 m / 1 mile / 5K / 10K / 9.3 mi
- **[All-Out Runapalooza](https://runthis.run/event/rs-140867-all-out-runapalooza)** — Fri, Aug 7, 2026 · 7:00 PM CDT · Arvada, CO · Marathon / 10K / 5K
- **[Eat. Run. Adopt. 10K](https://runthis.run/event/rs-197092-eat-run-adopt-10k)** — Fri, Aug 7, 2026 · 7:00 PM CDT · Berthoud, CO · 10K
- **[Summer Sizzler- Colorado Springs](https://runthis.run/event/rs-122261-summer-sizzler-colorado-springs)** — Sat, Aug 8, 2026 · 7:00 PM CDT · Colorado Springs, CO · 50 m / 1 mile / 5K / 10K / 9.3 mi
- **[Into the Hills Eltuck 10k](https://runthis.run/event/rs-108612-into-the-hills-eltuck-10k)** — Mon, Aug 10, 2026 · 7:00 PM CDT · Bellvue, CO · 10K
- **[Run for PB& J 5K/10K/13.1 DENVER/AURORA](https://runthis.run/event/rs-198867-run-for-pb-j-5k-10k-13-1-denver-aurora)** — Fri, Aug 14, 2026 · 7:00 PM CDT · Centennial, CO · 5K / 10K / Marathon / 1 mile
- **[Farish Mt Bike Race](https://runthis.run/event/rs-199206-farish-mt-bike-race)** — Fri, Aug 14, 2026 · 7:00 PM CDT · Woodland Park, CO · 6.0 mi / 12.0 mi / 16.0 mi
- **[Bagel Run 5K/10K/13.1 DENVER/AURORA](https://runthis.run/event/rs-199392-bagel-run-5k-10k-13-1-denver-aurora)** — Fri, Aug 14, 2026 · 7:00 PM CDT · Centennial, CO · 5K / 10K / Marathon / 1 mile
- **[The Cheyenne Mountain Run](https://runthis.run/event/rs-31416-the-cheyenne-mountain-run)** — Fri, Aug 14, 2026 · 7:00 PM CDT · Colorado Springs, CO · 5K / 10K / 14.0 mi
- **[2026 True Impact Ministries 5K/10K](https://runthis.run/event/rs-96214-2026-true-impact-ministries-5k-10k)** — Fri, Aug 21, 2026 · 7:00 PM CDT · Centennial, CO · 5K / 10K
- **[Pioneer Prairie Dog Half, 10k & 5k](https://runthis.run/event/rs-3356-pioneer-prairie-dog-half-10k-5k)** — Sat, Aug 22, 2026 · 7:00 PM CDT · Westminster, CO · Marathon / 10K / 5K
- **[11th Annual Log Hill Hustle](https://runthis.run/event/rs-79640-11th-annual-log-hill-hustle)** — Sat, Aug 22, 2026 · 7:00 PM CDT · Ridgway, CO · 5K / 10K
- **[Sloth Run 5K/10K/13.1 DENVER/AURORA](https://runthis.run/event/rs-198465-sloth-run-5k-10k-13-1-denver-aurora)** — Fri, Aug 28, 2026 · 7:00 PM CDT · Centennial, CO · 5K / 10K / Marathon / 1 mile
- **[Run for Breast Cancer 5K/10K/13.1 DENVER/AURORA](https://runthis.run/event/rs-199871-run-for-breast-cancer-5k-10k-13-1-denver-aurora)** — Fri, Aug 28, 2026 · 7:00 PM CDT · Centennial, CO · 5K / 10K / Marathon / 1 mile
- **[James Test Site](https://runthis.run/event/rs-153643-james-test-site)** — Sat, Aug 29, 2026 · 7:00 PM CDT · Lyons, CO · 5K / 10K
- **[Break Your Neck: Walk, Run, or Roll](https://runthis.run/event/rs-167766-break-your-neck-walk-run-or-roll)** — Fri, Sep 4, 2026 · 7:00 PM CDT · Pueblo, CO · 5K / 10K
- **[Golden Harvest Half Marathon & 5k/10k - Denver](https://runthis.run/event/rs-194302-golden-harvest-half-marathon-5k-10k-denver)** — Fri, Sep 4, 2026 · 7:00 PM CDT · Westminster, CO · 50 m / 1 mile / 5K / 10K / Marathon
- **[The Beaver Run](https://runthis.run/event/rs-210725-the-beaver-run)** — Fri, Sep 4, 2026 · 7:00 PM CDT · Breckenridge, CO · 5K / 10K / 9.3 mi / 161 m
- **[Golden Harvest Half Marathon & 5k/10k - Colorado Springs](https://runthis.run/event/rs-194388-golden-harvest-half-marathon-5k-10k-colorado-springs)** — Sat, Sep 5, 2026 · 7:00 PM CDT · Colorado Springs, CO · 50 m / 1 mile / 5K / 10K / Marathon
- **[Labor Day Half Marathon](https://runthis.run/event/rs-30929-labor-day-half-marathon)** — Sun, Sep 6, 2026 · 7:00 PM CDT · Parker, CO · Marathon / 10K / 5K
- **[14th Annual Superhero Event](https://runthis.run/event/rs-192301-14th-annual-superhero-event)** — Wed, Sep 9, 2026 · 7:00 PM CDT · Greeley, CO · 10K / 5K / 1 mile
- **[Trail Sisters Women's Half Marathon & 10k](https://runthis.run/event/rs-142537-trail-sisters-womens-half-marathon-10k)** — Fri, Sep 11, 2026 · 7:00 PM CDT · Buena Vista, CO · Marathon / 10K
- **[National Chocolate Day: Run for Chocolates 5K/10K/13.1 DENVER/AURORA](https://runthis.run/event/rs-198499-national-chocolate-day-run-for-chocolates-5k-10k-13-1-denver)** — Fri, Sep 11, 2026 · 7:00 PM CDT · Centennial, CO · 5K / 10K / Marathon / 1 mile
- **[Run for Mental Health 5K/10K/13.1 DENVER/AURORA](https://runthis.run/event/rs-199914-run-for-mental-health-5k-10k-13-1-denver-aurora)** — Fri, Sep 11, 2026 · 7:00 PM CDT · Centennial, CO · 5K / 10K / Marathon / 1 mile
- **[RMRR September 5k/10k](https://runthis.run/event/rs-97124-rmrr-september-5k-10k)** — Sat, Sep 12, 2026 · 7:00 PM CDT · Thornton, CO · 10K / 5K
- **[Autumn Run](https://runthis.run/event/rs-129362-autumn-run)** — Fri, Sep 18, 2026 · 7:00 PM CDT · Buena Vista, CO · Marathon / 10K / 5K / 1000 m
- **[All-Out Fall Fest](https://runthis.run/event/rs-140875-all-out-fall-fest)** — Fri, Sep 18, 2026 · 7:00 PM CDT · Westminster, CO · Marathon / 10K / 5K
- **[Wellington STAR Foundation 5K 10K](https://runthis.run/event/rs-202373-wellington-star-foundation-5k-10k)** — Fri, Sep 18, 2026 · 7:00 PM CDT · Wellington, CO · 5K / 10K
- **[Beulah Challenge and OverIt Series](https://runthis.run/event/rs-46556-beulah-challenge-and-overit-series)** — Fri, Sep 18, 2026 · 7:00 PM CDT · Beulah, CO · 10K / 5K / 32.4 mi
- **[Battle by the Brook](https://runthis.run/event/rs-58070-battle-by-the-brook)** — Fri, Sep 18, 2026 · 7:00 PM CDT · Deckers, CO · 20.0 mi / 6.0 mi
- **[20th Annual Golden Gallop](https://runthis.run/event/rs-105394-20th-annual-golden-gallop)** — Sat, Sep 19, 2026 · 7:00 PM CDT · Golden, CO · 5K / 10K / 12.4 mi
- **[Chile & Frijole Hot to Trot 5K & 10K](https://runthis.run/event/rs-204249-chile-frijole-hot-to-trot-5k-10k)** — Sat, Sep 19, 2026 · 7:00 PM CDT · Pueblo, CO · 5K / 10K
- **[Oktoberfest Run 5K/10K/13.1 DENVER/AURORA](https://runthis.run/event/rs-199674-oktoberfest-run-5k-10k-13-1-denver-aurora)** — Fri, Sep 25, 2026 · 7:00 PM CDT · Centennial, CO · 5K / 10K / Marathon / 1 mile
- **[Run for Donuts 5K/10K/13.1 DENVER/AURORA](https://runthis.run/event/rs-200082-run-for-donuts-5k-10k-13-1-denver-aurora)** — Fri, Sep 25, 2026 · 7:00 PM CDT · Centennial, CO · 5K / 10K / Marathon / 1 mile
- **[Parker Parks and Recreation So Long to Summer 5K/10K](https://runthis.run/event/rs-95482-parker-parks-and-recreation-so-long-to-summer-5k-10k)** — Fri, Sep 25, 2026 · 7:00 PM CDT · Parker, CO · 5K / 10K
- **[Running for Children's Rights to Both Parents - 9 of 50 Half Marathons in 50 States - Colorado](https://runthis.run/event/rs-205779-running-for-childrens-rights-to-both-parents-9-of-50-half-ma)** — Sat, Sep 26, 2026 · 7:00 PM CDT · Boulder, CO · Marathon / 5K / 10K
- **[HRCA Wildcat Mountain Trail Races](https://runthis.run/event/rs-122682-hrca-wildcat-mountain-trail-races)** — Fri, Oct 2, 2026 · 7:00 PM CDT · Littleton, CO · 10.0 mi / 10K
- **[Rim to Rim Royal Gorge Races: 5K Road Run, Trail 8 Mile, Trail Half Marathon](https://runthis.run/event/rs-124509-rim-to-rim-royal-gorge-races-5k-road-run-trail-8-mile-trail-)** — Fri, Oct 2, 2026 · 7:00 PM CDT · Canon City, CO · 5K / 8.0 mi / Marathon / 10K
- **[Spooky Sprint - Denver](https://runthis.run/event/rs-153154-spooky-sprint-denver)** — Fri, Oct 2, 2026 · 7:00 PM CDT · Littleton, CO · 50 m / 1 mile / 5K / 10K / Marathon
- **[Lafayette Music Fest -5K - 10K](https://runthis.run/event/rs-195431-lafayette-music-fest-5k-10k)** — Fri, Oct 2, 2026 · 7:00 PM CDT · Lafayette, CO · 10K / 5K
- **[Windsor Marathon, Half Marathon, 10k, 5k & 1 Mile Run](https://runthis.run/event/rs-84571-windsor-marathon-half-marathon-10k-5k-1-mile-run)** — Sat, Oct 3, 2026 · 7:00 PM CDT · Windsor, CO · Marathon / 10K / 5K / 1 mile
- **[Breckenridge RunFest](https://runthis.run/event/rs-178572-breckenridge-runfest)** — Fri, Oct 9, 2026 · 7:00 PM CDT · Breckenridge, CO · Marathon / 10K / 5K / 1 mile
- **[Bagel Run 5K/10K/13.1 DENVER/AURORA](https://runthis.run/event/rs-201389-bagel-run-5k-10k-13-1-denver-aurora)** — Fri, Oct 9, 2026 · 7:00 PM CDT · Centennial, CO · 5K / 10K / Marathon / 1 mile
- **[Coffee Lovers Run 5K/10K/13.1 DENVER/AURORA](https://runthis.run/event/rs-201512-coffee-lovers-run-5k-10k-13-1-denver-aurora)** — Fri, Oct 9, 2026 · 7:00 PM CDT · Centennial, CO · 5K / 10K / Marathon / 1 mile
- **[Your Story Isn't Over 5k/10k/Kids 1-Mile](https://runthis.run/event/rs-210192-your-story-isnt-over-5k-10k-kids-1-mile)** — Sat, Oct 10, 2026 · 7:00 PM CDT · Littleton, CO · 1 mile / 10K / 5K
- **[Chili Chase](https://runthis.run/event/rs-211772-chili-chase)** — Fri, Oct 16, 2026 · 7:00 PM CDT · Durango, CO · 6.5 mi
- **[Ghosts and Goblins 5K/10K](https://runthis.run/event/rs-139699-ghosts-and-goblins-5k-10k)** — Sat, Oct 24, 2026 · 7:00 PM CDT · Denver, CO · 5K / 10K
- **[Spooky Sprint - Colorado Springs](https://runthis.run/event/rs-153164-spooky-sprint-colorado-springs)** — Fri, Oct 30, 2026 · 7:00 PM CDT · Colorado Springs, CO · 1 mile / 5K / 10K / Marathon
- **[PB&J Fuel Run 5K/10K/13.1 DENVER/AURORA](https://runthis.run/event/rs-201633-pb-j-fuel-run-5k-10k-13-1-denver-aurora)** — Fri, Oct 30, 2026 · 7:00 PM CDT · Centennial, CO · 5K / 10K / Marathon / 1 mile
- **[Halloween Trick or Trot Run 5K/10K/13.1 DENVER/AURORA](https://runthis.run/event/rs-204690-halloween-trick-or-trot-run-5k-10k-13-1-denver-aurora)** — Fri, Oct 30, 2026 · 7:00 PM CDT · Centennial, CO · 5K / 10K / Marathon / 1 mile
- **[All-Out Kooky-Spooky](https://runthis.run/event/rs-140919-all-out-kooky-spooky)** — Sat, Oct 31, 2026 · 7:00 PM CDT · Golden, CO · Marathon / 10K / 5K
- **[Feet for Justice Run](https://runthis.run/event/rs-59059-feet-for-justice-run)** — Sat, Oct 31, 2026 · 7:00 PM CDT · Denver, CO · 10K / 5K
- **[Alamosa Veterans Memorial Park Race](https://runthis.run/event/rs-136512-alamosa-veterans-memorial-park-race)** — Fri, Nov 6, 2026 · 6:00 PM CST · Alamosa, CO · 5K / 10K
- **[Turkey Trails- Denver](https://runthis.run/event/rs-153202-turkey-trails-denver)** — Fri, Nov 6, 2026 · 6:00 PM CST · Littleton, CO · 50 m / 1 mile / 5K / 10K / Marathon
- **[City Park Classic (5k/10k & 1 Mile Walk of Hope for Pancreatic Cancer Research)](https://runthis.run/event/rs-84225-city-park-classic-5k-10k-1-mile-walk-of-hope-for-pancreatic-)** — Fri, Nov 6, 2026 · 6:00 PM CST · Denver, CO · 5K / 10K / 1 mile
- **[Turkey Trails - Colorado Springs](https://runthis.run/event/rs-153198-turkey-trails-colorado-springs)** — Sat, Nov 7, 2026 · 6:00 PM CST · Colorado Springs, CO · 50 m / 1 mile / 5K / 10K / Marathon
- **[Run for Mental Health 5K/10K/13.1 DENVER/AURORA](https://runthis.run/event/rs-201423-run-for-mental-health-5k-10k-13-1-denver-aurora)** — Fri, Nov 13, 2026 · 6:00 PM CST · Centennial, CO · 5K / 10K / Marathon / 1 mile
- **[Veterans Day Freedom Run 5K/10K/13.1 DENVER/AURORA](https://runthis.run/event/rs-205124-veterans-day-freedom-run-5k-10k-13-1-denver-aurora)** — Fri, Nov 13, 2026 · 6:00 PM CST · Centennial, CO · 5K / 10K / Marathon / 1 mile
- **[Denver Veterans Day Run](https://runthis.run/event/rs-53380-denver-veterans-day-run)** — Fri, Nov 13, 2026 · 6:00 PM CST · Denver, CO · 5K / 10K
- **[TURKEY TREK (13.1, 10k, 5k & 2k)](https://runthis.run/event/rs-1649-turkey-trek-13-1-10k-5k-2k)** — Fri, Nov 20, 2026 · 6:00 PM CST · Arvada, CO · Marathon / 10K / 5K / 1.2 mi
- **[Pumpkin Pie 5K/10K](https://runthis.run/event/rs-30930-pumpkin-pie-5k-10k)** — Fri, Nov 20, 2026 · 6:00 PM CST · Denver, CO · 5K / 10K
- **[Broomfield Turkey Day 5K/10K](https://runthis.run/event/rs-16827-broomfield-turkey-day-5k-10k)** — Wed, Nov 25, 2026 · 6:00 PM CST · Broomfield, CO · 10K / 5K / 2.0 mi
- **[Coffee Lovers Run 5K/10K/13.1 DENVER/AURORA](https://runthis.run/event/rs-201458-coffee-lovers-run-5k-10k-13-1-denver-aurora)** — Fri, Nov 27, 2026 · 6:00 PM CST · Centennial, CO · 5K / 10K / Marathon / 1 mile
- **[Thanksgiving Gobble Trot Run 5K/10K/13.1 DENVER/AURORA](https://runthis.run/event/rs-205276-thanksgiving-gobble-trot-run-5k-10k-13-1-denver-aurora)** — Fri, Nov 27, 2026 · 6:00 PM CST · Centennial, CO · 5K / 10K / Marathon / 1 mile
- **[All-Out Fa La La](https://runthis.run/event/rs-140922-all-out-fa-la-la)** — Fri, Dec 4, 2026 · 6:00 PM CST · Westminster, CO · Marathon / 10K / 5K
- **[Candy Cane Course - Colorado Springs](https://runthis.run/event/rs-153241-candy-cane-course-colorado-springs)** — Fri, Dec 4, 2026 · 6:00 PM CST · Colorado Springs, CO · 50 m / 1 mile / 5K / 10K / 9.3 mi
- **[Chasing Santa 5k/Cycling Santa Toy Drive Presented by: Springs Law Group](https://runthis.run/event/rs-165192-chasing-santa-5k-cycling-santa-toy-drive-presented-by-spring)** — Fri, Dec 4, 2026 · 6:00 PM CST · Colorado Springs, CO · 5K / 6.0 mi / 10.0 mi / 21.0 mi
- **[Toy Drop](https://runthis.run/event/rs-80068-toy-drop)** — Fri, Dec 4, 2026 · 6:00 PM CST · Loveland, CO · 5K / 10K / 9.3 mi
- **[Candy Cane Course - Denver](https://runthis.run/event/rs-153242-candy-cane-course-denver)** — Sat, Dec 5, 2026 · 6:00 PM CST · Westminster, CO · 1 mile / 5K / 10K / 50 m / 9.3 mi
- **[Run for Breast Cancer 5K/10K/13.1 DENVER/AURORA](https://runthis.run/event/rs-204847-run-for-breast-cancer-5k-10k-13-1-denver-aurora)** — Fri, Dec 11, 2026 · 6:00 PM CST · Centennial, CO · 5K / 10K / Marathon / 1 mile
- **[Sunrise Marathon 5K/10K/13.1 DENVER/AURORA](https://runthis.run/event/rs-207976-sunrise-marathon-5k-10k-13-1-denver-aurora)** — Fri, Dec 11, 2026 · 6:00 PM CST · Centennial, CO · 5K / 10K / Marathon / 1 mile
- **[Santa Catch 5k & 10k](https://runthis.run/event/rs-83646-santa-catch-5k-10k)** — Fri, Dec 11, 2026 · 6:00 PM CST · Windsor, CO · 5K / 10K / 1 mile
- **[A Merry Christmas Run 5K/10K/13.1 DENVER/AURORA](https://runthis.run/event/rs-204950-a-merry-christmas-run-5k-10k-13-1-denver-aurora)** — Fri, Dec 25, 2026 · 6:00 PM CST · Centennial, CO · 5K / 10K / Marathon / 1 mile
- **[New Year's Run 5K/10K/13.1 DENVER/AURORA](https://runthis.run/event/rs-207994-new-years-run-5k-10k-13-1-denver-aurora)** — Fri, Dec 25, 2026 · 6:00 PM CST · Centennial, CO · 5K / 10K / Marathon / 1 mile
- **[All-Out Polar Prowl](https://runthis.run/event/rs-140791-all-out-polar-prowl)** — Fri, Jan 8, 2027 · 6:00 PM CST · Arvada, CO · Marathon / 10K / 5K
- **[MLK Jr. Freedom Run 5K/10K/13.1 DENVER/AURORA](https://runthis.run/event/rs-209344-mlk-jr-freedom-run-5k-10k-13-1-denver-aurora)** — Fri, Jan 15, 2027 · 6:00 PM CST · Centennial, CO · 5K / 10K / Marathon / 1 mile
- **[Sunrise Marathon 5K/10K/13.1 DENVER/AURORA](https://runthis.run/event/rs-210560-sunrise-marathon-5k-10k-13-1-denver-aurora)** — Fri, Jan 15, 2027 · 6:00 PM CST · Centennial, CO · 5K / 10K / Marathon / 1 mile
- **[Alley Loop](https://runthis.run/event/rs-124781-alley-loop)** — Fri, Jan 29, 2027 · 6:00 PM CST · Crested Butte, CO · Marathon / 10K / 5K / 1.9 mi / 1000 m
- **[Coffee Lover Run DENVER/AURORA](https://runthis.run/event/rs-209491-coffee-lover-run-denver-aurora)** — Fri, Jan 29, 2027 · 6:00 PM CST · Centennial, CO · 5K / 10K / Marathon / 1 mile
- **[Run for Donut DENVER/AURORA](https://runthis.run/event/rs-210591-run-for-donut-denver-aurora)** — Fri, Jan 29, 2027 · 6:00 PM CST · Centennial, CO · 5K / 10K / Marathon / 1 mile
- **[All-Out Mardi Crawl](https://runthis.run/event/rs-140664-all-out-mardi-crawl)** — Fri, Feb 5, 2027 · 6:00 PM CST · Arvada, CO · Marathon / 10K / 5K
- **[Stories Trail Runs](https://runthis.run/event/rs-97285-stories-trail-runs)** — Fri, Feb 5, 2027 · 6:00 PM CST · Colorado Springs, CO · 6.7 mi / Marathon / 19.6 mi
- **[Valentine's Day Run 5K/10K/13.1 DENVER/AURORA](https://runthis.run/event/rs-209854-valentines-day-run-5k-10k-13-1-denver-aurora)** — Fri, Feb 12, 2027 · 6:00 PM CST · Centennial, CO · 5K / 10K / Marathon / 1 mile
- **[Run for Chocolate 5K/10K/13.1 DENVER/AURORA](https://runthis.run/event/rs-210643-run-for-chocolate-5k-10k-13-1-denver-aurora)** — Fri, Feb 12, 2027 · 6:00 PM CST · Centennial, CO · 5K / 10K / Marathon / 1 mile
- **[Lucky Brew Race 5K, 10K, 15k & Half Marathon](https://runthis.run/event/rs-104479-lucky-brew-race-5k-10k-15k-half-marathon)** — Sat, Mar 13, 2027 · 6:00 PM CST · Severance, CO · 5K / 10K / 9.3 mi / 966 m / Marathon
- **[Sunrise Marathon 5K/10K/13.1 DENVER/AURORA](https://runthis.run/event/rs-211550-sunrise-marathon-5k-10k-13-1-denver-aurora)** — Fri, Mar 19, 2027 · 7:00 PM CDT · Centennial, CO · 5K / 10K / Marathon / 1 mile
- **[All-Out Spring Fever](https://runthis.run/event/rs-140771-all-out-spring-fever)** — Sat, Mar 20, 2027 · 7:00 PM CDT · Golden, CO · Marathon / 10K / 5K
- **[Run for Bagels 5K/10K/13.1 DENVER/AURORA](https://runthis.run/event/rs-211415-run-for-bagels-5k-10k-13-1-denver-aurora)** — Fri, Apr 9, 2027 · 7:00 PM CDT · Centennial, CO · 5K / 10K / Marathon / 1 mile
- **[All-Out Beat the Heat](https://runthis.run/event/rs-140777-all-out-beat-the-heat)** — Fri, Apr 23, 2027 · 7:00 PM CDT · Westminster, CO · Marathon / 10K / 5K
- **[Coffee Lover Run DENVER/AURORA](https://runthis.run/event/rs-211446-coffee-lover-run-denver-aurora)** — Fri, Apr 23, 2027 · 7:00 PM CDT · Centennial, CO · 5K / 10K / Marathon / 1 mile
- **[The Colorado Marathon](https://runthis.run/event/rs-169856-the-colorado-marathon)** — Sat, May 1, 2027 · 7:00 PM CDT · Fort Collins, CO · Marathon / 10K / 5K
- **[Colorado Women's Classic - Westminster](https://runthis.run/event/rs-2434-colorado-womens-classic-westminster)** — Sat, May 8, 2027 · 7:00 PM CDT · Westminster, CO · 5K / 10K / 10.0 mi
- **[Endure Trail Runs](https://runthis.run/event/rs-98114-endure-trail-runs)** — Fri, May 14, 2027 · 7:00 PM CDT · Divide, CO · 6.8 mi / 14.1 mi / 26.5 mi
- **[Samson's Revenge](https://runthis.run/event/rs-208215-samsons-revenge)** — Fri, May 21, 2027 · 7:00 PM CDT · Estes Park, CO · 6.5 mi / 15.5 mi / 31.1 mi
- **[Colorado 13er (Half Marathon/10k/5k)](https://runthis.run/event/rs-10366-colorado-13er-half-marathon-10k-5k)** — Sat, Jun 5, 2027 · 7:00 PM CDT · Louisville, CO · Marathon / 10K / 5K
- **[All-Out Summer Breeze](https://runthis.run/event/rs-140793-all-out-summer-breeze)** — Fri, Jun 11, 2027 · 7:00 PM CDT · Arvada, CO · Marathon / 10K / 5K
- **[Summits Trail Runs](https://runthis.run/event/rs-174095-summits-trail-runs)** — Fri, Jun 11, 2027 · 7:00 PM CDT · Granby, CO · 6.1 mi / 13.9 mi / 27.8 mi / 33.9 mi
- **[Race in the Clouds - Alma Dirt Festival 2027](https://runthis.run/event/rs-187048-race-in-the-clouds-alma-dirt-festival-2027)** — Wed, Jun 23, 2027 · 7:00 PM CDT · Alma, CO · 38.0 mi / 26.0 mi / Marathon / 22.0 mi / 10K / 6.1 mi
- **[Let Freedom Run 5k/10k - Louisville](https://runthis.run/event/rs-1692-let-freedom-run-5k-10k-louisville)** — Sat, Jul 3, 2027 · 7:00 PM CDT · Louisville, CO · 5K / 10K
- **[All-Out Dog Days](https://runthis.run/event/rs-140866-all-out-dog-days)** — Fri, Jul 9, 2027 · 7:00 PM CDT · Westminster, CO · Marathon / 10K / 5K
- **[Summer Splash Prairie Dog Half, 10k, & 5k](https://runthis.run/event/rs-8929-summer-splash-prairie-dog-half-10k-5k)** — Fri, Jul 16, 2027 · 7:00 PM CDT · Castle Rock, CO · Marathon / 10K / 5K

## 10K races by city

- [Centennial, CO (30)](https://runthis.run/races/colorado/centennial/10k.md)
- [Colorado Springs, CO (8)](https://runthis.run/races/colorado/colorado-springs/10k.md)
- [Westminster, CO (8)](https://runthis.run/races/colorado/westminster/10k.md)
- [Arvada, CO (5)](https://runthis.run/races/colorado/arvada/10k.md)
- [Denver, CO (5)](https://runthis.run/races/colorado/denver/10k.md)
- [Littleton, CO (4)](https://runthis.run/races/colorado/littleton/10k.md)
- [Golden, CO (3)](https://runthis.run/races/colorado/golden/10k.md)

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Source: [https://runthis.run/races/colorado/10k](https://runthis.run/races/colorado/10k) — data from Run This (runthis.run).