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Run Vibes

Running Races in Colorado

Colorado's high-altitude courses test even seasoned runners, with stunning mountain scenery and a deep trail and road race calendar.

316 upcoming races listed

Fun racesScenic racesCompetitive racesQuirky racesFestive racesFor a Cause racesBeginner-friendlyFamily-friendly
MCMS Tri w/ Miller & Ignacio

Experience a run at Montezuma-Cortez HS Track in Cortez, CO, on April 2, 2026, in a high-altitude, hilly environment.

Thu, Apr 2, 2026, 9:00 AM MDTCortez, CO
RUN

Course · Hilly · Timed race

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

Lace up for a meaningful run in Centennial, CO, supporting breast cancer awareness in a warm, stress-free group setting with optional timing.

  • For a Cause
Sat, Apr 4, 2026, 7:30 AM MDT13.1 MilesCentennial, CO
Push PotentialRUN

Course · Hilly · Timed race

Always Hope Easter Run 5K/10K/13.1 DENVER/AURORA

A supportive, family-friendly Easter run in Centennial, CO, where every mile you log after the race helps charity.

  • Fun
  • Festive
  • For a Cause
Sat, Apr 4, 2026, 7:30 AM MDT13.1 MilesCentennial, CO
Push PotentialRUN

Course · Hilly · Family-oriented

Erie Easter Bunny Hop

Hop into spring with Erie's inaugural Easter Bunny Hop 5K, a family-friendly celebration on a scenic, timed course.

  • Fun
  • Scenic
  • Competitive
  • Quirky
  • Festive
Sat, Apr 4, 2026, 8:30 AM MDT5KErie, CO
Steady EffortRUN

Course · Hilly · Family-oriented

Three Creeks Half Marathon

Experience Denver's premier spring half marathon, featuring a flat, fast, and scenic course through Cherry Creek State Park.

  • Scenic
  • Competitive
Sun, Apr 5, 2026, 8:00 AM MDT13.1 MilesEnglewood, CO
Push PotentialRUN

Course · Road · Hilly · Timed race

RMRR Spring Marathon Training Series #2

A fully supported, low-cost 20-mile training run designed to help you prepare for your spring marathon or half marathon.

  • Competitive
Sat, Apr 11, 2026, 8:00 AM MDT20 MilesThornton, CO
Push PotentialRUN

Course · Hilly · Timed race

Run Through The Decades 6K/7K/8K/Half - Colorado Springs

Run, groove, and celebrate the unforgettable music of the 60s, 70s, and 80s in this unique themed race.

  • Fun
  • Quirky
  • Festive
Sat, Apr 11, 2026, 8:00 AM MDT13.1 MilesColorado Springs, CO
Push PotentialRUN

Course · Hilly · Timed race

Dash for Detection: Oral Cancer Awareness 5K

This mission-driven 5K, focused on oral cancer awareness, is postponed to 2027. Organizers are dedicated to their cause and planning for next year.

  • For a Cause
Sat, Apr 11, 2026, 8:00 AM MDT3.1 MilesDenver, CO
EasygoingRUN

Course · Rolling · Timed race

Rockin on the River 5K

Enjoy a scenic 5K along the South Platte River with live music and a casual, welcoming vibe. Show off your favorite running tee.

  • Fun
  • Scenic
Sat, Apr 11, 2026, 9:00 AM MDT3.1 MilesLittleton, CO
Steady EffortRUN

Course · Hilly · Timed race

ASDAsh 5K to Beat Tooth Decay

Run a revamped campus 5K, conquer the "Meatball Mile" Strava Segment, and support vital dental care for Colorado veterans.

  • Fun
  • Competitive
  • Quirky
  • For a Cause
Sat, Apr 11, 2026, 9:30 AM MDT5KAurora, CO
Steady EffortRUN

Course · Hilly · Family-oriented

Platte River Half-Marathon, Relay & 5k

Run alongside the scenic Platte River Trail, then celebrate your achievement with an epic post-race party at Breckenridge Brewery.

  • Fun
  • Scenic
  • Festive
  • For a Cause
Sun, Apr 12, 2026, 7:00 AM MDT13.1 MilesLittleton, CO
Push PotentialRUN

Course · Hilly · Timed race

Spring Fling Prairie Dog Half, 10k, & 5k

Celebrate spring with a run in Arvada, CO, offering half marathon, 10k, and 5k distances as part of the Prairie Dog Half Race Series.

  • Festive
Sun, Apr 12, 2026, 8:00 AM MDT13.1 MilesArvada, CO
Push PotentialRUN

Course · Hilly · Timed race

Hop Into Spring 5K - Denver

Shake off winter and celebrate spring's arrival on a flat, friendly 5K course with awards for top finishers and age groups.

  • Fun
  • Competitive
  • Festive
Sun, Apr 12, 2026, 8:00 AM MDT5KDenver, CO
Steady EffortRUN

Course · Rolling · Walkers welcome

Prairie Dog Run Series

Join Peedy the Prairie Dog for a seasonal run series across Colorado, offering multiple distances and locations to fit your running plans.

  • Fun
  • Quirky
Sun, Apr 12, 2026, 8:00 AM MDT13.1 MilesLouisville, CO
Push PotentialRUN

Course · Hilly · Timed race

RMRR April Trophy Series

Embrace spring with a lovely 4-mile run through Denver's City Park, offering a fun loop around the zoo on mild April mornings.

  • Fun
  • Scenic
  • Festive
Sun, Apr 12, 2026, 9:00 AM MDT4 MilesDenver, CO
Steady EffortRUN

Course · Road · Rolling · Timed race

Donut Dash

Enjoy a flat, fast 5K in Denver, then celebrate your finish with fresh donuts. A sweet and speedy start to your Sunday.

  • Fun
  • Competitive
  • Quirky
Sun, Apr 12, 2026, 9:00 AM MDT5KDenver, CO
Steady EffortRUN

Course · Rolling · Walkers welcome

Boulder Track Series Meet 1

A focused track meet for middle and distance runners, featuring heats based on similar times at Niwot High School.

  • Competitive
Sun, Apr 12, 2026, 11:00 AM MDT2 MilesLongmont, CO
EasygoingRUN

Course · Rolling · Timed race

Healthy Kids Running Series Spring 2026 - Fort Collins, CO

A five-week running series for kids, fostering health and friendly competition with age-appropriate races and an inclusive Challenger Division.

  • Fun
  • Competitive
Sun, Apr 12, 2026, 2:00 PM MDTFort Collins, CO
RUN

Course · Rolling · Timed race

Healthy Kids Running Series Spring 2026 - Denver, CO

A five-week running program in Denver, offering age-appropriate races and an inclusive Challenger Division for kids Pre-K through 8th grade.

  • Fun
  • Competitive
Sun, Apr 12, 2026, 3:00 PM MDTDenver, CO
RUN

Course · Rolling · Timed race

Healthy Kids Running Series Spring 2026 - Aurora, CO

A five-week running series designed for kids Pre-K through 8th grade, fostering healthy habits and a love for running in an inclusive environment.

  • Fun
  • Competitive
Sun, Apr 12, 2026, 4:30 PM MDTAurora, CO
RUN

Course · Hilly · Timed race

All-Out Beat the Heat

Embrace your inner hero on a scenic, hilly half marathon that's a BOLDERBoulder qualifier and supports Adaptive Adventures.

  • Fun
  • Scenic
  • Competitive
  • Quirky
  • For a Cause
Sat, Apr 18, 2026, 7:00 AM MDT13.1 MilesWestminster, CO
Push PotentialRUN

Course · Hilly · Timed race

Donot Stop Half Marathon (5k/10k) - Colorado Springs

A sweet, donut-themed race in Colorado Springs, perfect for families and anyone who loves a fun run with delicious rewards.

  • Fun
  • Quirky
Sat, Apr 18, 2026, 8:00 AM MDT13.1 MilesColorado Springs, CO
Push PotentialRUN

Course · Hilly · Walkers welcome

Great Western Trail Race

The Great Western Trail Race is not scheduled for 2026, but may return. Explore other local races from the same organizers.

Sat, Apr 18, 2026, 8:00 AM MDT13.1 MilesSeverance, CO
Push PotentialRUN

Course · Trail · Hilly · Timed race

Earth Day 5K

Celebrate Earth Day with a fun, zero-waste 5K run/walk on the Animas River Trail, supporting vital immigrant services in Durango.

  • Fun
  • Festive
  • For a Cause
Sat, Apr 18, 2026, 8:30 AM MDT5KDurango, CO
Push PotentialRUN

Course · Hilly · Walkers welcome

See all 316 races in Colorado →

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