30 events in Denver, Colorado

From big races to Saturday morning group runs—find 5k events and connect with the local endurance sports community.

• Flamingo Day 5K [bit.ly] [Register at runsignup.com]
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  Sun, Jun 07, 2026 at 8:00 AM

  Description

  Join us at Denver's Sloan's Lake Park for a fun and festive 5K.

  5k Run

  Denver, Colorado, 80204, United States
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• Denver Pride 5K [denverpride.org] [Register at runsignup.com]
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  Sat, Jun 27, 2026 at 7:30 AM

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  The Denver Pride 5K is more than just a race—it's a powerful way for supporters of The Center on Colfax to make a difference in the lives of Colorado’s LGBTQ+ community. This event serves as a...

  The Denver Pride 5K is more than just a race—it's a powerful way for supporters of The Center on Colfax to make a difference in the lives of Colorado’s LGBTQ+ community. This event serves as a crucial fundraiser, enabling us to provide free essential services, programs, and activities to LGBTQ+ individuals and our allies year-round.

  Thanks to the incredible efforts of those who joined us in 2025, we raised over $240,000 to continue advancing our mission. Every dollar raised helps us strengthen and support our community, and we are deeply grateful for your dedication. We can't wait for you to run, walk, roll, or sashay with us in 2026!

  3.1 Miles 5k Run Walk

  1900 E 11th Ave, Denver, Colorado, 80206, United States
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• Cookie Chase [bit.ly] [Register at runsignup.com]
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  Sat, Jul 11, 2026 at 8:00 AM

  Description

  The Cookie Chase is Denver’s race that ends with cookies. Runners and walkers can take advantage of a flat and fast course, and then enjoy fresh cookies at the finish. Our mission is to bring people together to have a fun, fit morning. All finishers will get a finishers medal, as well as top-notch chip timing, a race logo shirt and finish line expo with vendors and food and cookies!

  5k Run Walk

  Denver, Colorado, 80204, United States
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• Miles for Migraine - Colorado 2026 [milesformigraine.org] [Register at raceroster.com]
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  Sat, Aug 15, 2026 at 8:30 AM

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  Miles for Migraine will host its 7th annual 2-mile Walk, 5K Run and Relax Colorado event on Saturday August 15th at Great Lawn Park in Denver. This event is a fundraiser for Migraine & Headache...

  Miles for Migraine will host its 7th annual 2-mile Walk, 5K Run and Relax Colorado event on Saturday August 15th at Great Lawn Park in Denver. This event is a fundraiser for Migraine & Headache Awareness, Treatment & Research. It's more than a walk/run - come connect with your local migraine & headache community, listen to our speakers & visit sponsors in the festival area.

  The 5K run is professionally timed. The Walk and the Relax events are free, but donations are encouraged. All walk and run finishers receive a finisher medal.

  Dress up in your best purple flair for a chance at a fun prize!

  Funds raised will benefit Miles for Migraine free programs & services as well as the University of Colorado Headache Center and Children's Colorado Headache Center to support local migraine research and fellowship training programs.

  5k Run Virtual Walk

  North Great Lawn Drive, Denver, Colorado, 80230, United States
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• Rebel Run 5k [conservationco.org] [Register at runsignup.com]
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  Sun, Aug 23, 2026 at 8:00 AM

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  Join Conservation Colorado for the second annual Rebel Run 5k! Run, walk or stroll to show your passion for Colorado's climate, air, land, water and communities. Create or join a team, or go solo –...

  Join Conservation Colorado for the second annual Rebel Run 5k! Run, walk or stroll to show your passion for Colorado's climate, air, land, water and communities. Create or join a team, or go solo – every dollar you donate or raise supports Conservation Colorado's efforts to protect the beautiful state we love and the communities who call it home. After the race, celebrate at our finish line party with food, drinks, sponsor booths and more. Sign up today to become a rebel and move for the cause! Stay tuned for registration opening.

  3.1 Miles 5k Run Walk

  Denver, Colorado, 80238, United States
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• The Denver 5k [runsignup.com]
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  Sat, Sep 12, 2026 at 8:50 AM

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  THE Denver 5k! Denver's Iconic Sloan Lake is the setting for the return of 'THE Denver 5k'. Celebrate with friends and family as you race around the lake in the shadow of Denver's skyline. Group...

  THE Denver 5k! Denver's Iconic Sloan Lake is the setting for the return of 'THE Denver 5k'. Celebrate with friends and family as you race around the lake in the shadow of Denver's skyline. Group pricing applies; youth and senior pricing are offered as well! Held at the start of September, THE Denver 5k is the perfect 'cool down' to the racing season!

  Overall awards will be awarded based on gun time. All other awards (including age group awards) and rankings will (based on CHIP times.

  5k Run

  Utica Street & West 17th Ave, Denver, Colorado, 80204, United States
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• 9/11 Heroes Run - Denver, Colorado [runsignup.com]
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  Sun, Sep 13, 2026 at 9:00 AM

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  The 9/11 Heroes Run 5K welcomes runners, ruckers, and walkers of all ages and fitness levels to honor the heroes of 9/11 and those who've served our nations since. We activate & unite communities and...

  The 9/11 Heroes Run 5K welcomes runners, ruckers, and walkers of all ages and fitness levels to honor the heroes of 9/11 and those who've served our nations since. We activate & unite communities and empower local veterans, active duty, first responders, and families of the fallen.

  TMF is proud to partner with GORUCK again with rucking divisions at every run. Rucking is a sport based on special forces training in which participants walk or run while carrying weighted rucksacks. All participants registered for the GORUCK division will earn this year's exclusive TMF GORUCK patch. Learn more about GORUCK here.

  1 Miles 5k Run Walk

  Denver, Colorado, 80230, United States
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• Tiger Prowl 5K [runsignup.com]
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  Sun, Sep 13, 2026 at 9:00 AM

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  The Tiger Prowl 5K is a fabulous annual community event and tradition run by the Lakewood High School Foundation to support all the talented and ambitious student programs offered.

  All proceeds go...

  The Tiger Prowl 5K is a fabulous annual community event and tradition run by the Lakewood High School Foundation to support all the talented and ambitious student programs offered.

  All proceeds go back into Lakewood High School programs for the students including theater, musical performance groups, athletics and the many other LHS clubs. ​Donations to the general fund of activities or directed to one specific effort are encouraged. Each year 100% of registration fees have gone directly back to the school programs.

  Race Web Site: http://www.tigerprowl5k.com/

  The shirts are high-quality, athletic t-shirts! Participants must register by September 5th in order to receive a t-shirt. You can still register after Septembr 5th but will not receive a shirt.

  The course travels on the well-shaded neighborhood roads in Lakewood. The race will be professionally chip timed by Colorado Race Timing, featuring state-of-the-art timing tags on the back of the bibs. Live results will be posted, and runners who register online can sign up for live texting/emailing of their race results.

  • Guaranteed T-Shirt Registration $30 by September 5th

  • Standard Registration $35 August 28th-Sept 5th

  • Late Registration $40, Sept 6th-15th

  • Race bib pick up is at Lakewood High School, West Atrium: Sept 18th and 19th 3-5 PM & Race Day Morning 7:30-8:45 AM

  • Online registration stays open even on Race Day. No need to register at the school, but please register before you come to pick up your race bib!

  T-Shirts only for those registered by September 5th!!!

  Please park in the Lakewood High School east or west parking lot.

  Race Starts at 9 AM

  ** The Tiger Prowl is a yearly fundraiser. All funds are managed by the Lakewood High School Foundation, a 501(c)3 non-profit Colorado corporation. Donations are tax-deductible as a charitable donation to the extent provided by law.

  3.1 Miles 5k Run

  9700 W 8th Ave, Denver, Colorado, 80215, United States
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• Race to Cure Sarcoma Denver [runsignup.com]
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  Sat, Oct 24, 2026 at 8:30 AM

  Description

  The Race to Cure Sarcoma (RTCS) Denver brings together hundreds of members of the community who have been impacted by this disease. Each year, the Sarcoma Foundation of America raises awareness and funds for much-needed research, through RTCS events across the country. JOIN US for our annual event in Denver!

  TOGETHER WE CAN FIND A CURE.

  1k 5k Run

  Denver, Colorado, 80212, United States
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• Ghosts and Goblins 5K/10K [bit.ly] [Register at runsignup.com]
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  Sun, Oct 25, 2026 at 9:00 AM

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  The Ghosts & Goblins 5K/10K is a family, friendly event to celebrate the upcoming holiday season. Start your holiday traditions with a fun morning of fitness and friends by joining us at Denver’s...

  The Ghosts & Goblins 5K/10K is a family, friendly event to celebrate the upcoming holiday season. Start your holiday traditions with a fun morning of fitness and friends by joining us at Denver’s City Park. Runners and walkers will complete a timed 5K/10K course through the park, then enjoy a finisher’s medal, a fun vendor village, food and drinks, a themed-shirt and awards for the top runners.

  5k 10k Run Walk

  Denver, Colorado, 80205, United States
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• RMRR November Trophy Series [rmrr.org] [Register at runsignup.com]
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  Sun, Nov 01, 2026 at 8:30 AM

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  Rocky Mountain Road Runners holds a monthly Trophy Series in the Denver area. We provide a low-key, low-cost racing environment. Everyone is welcome to run with us!

  The 15km race uses a handicap...

  Rocky Mountain Road Runners holds a monthly Trophy Series in the Denver area. We provide a low-key, low-cost racing environment. Everyone is welcome to run with us!

  The 15km race uses a handicap start system, slow-to-fast, spread over ~50 minutes. This gives everyone a chance to win. We'll use your estimated finish time to assign you a start time with others the same speed.

  All 5k racers will start ~20min after the first 15km starters.

  Our November race will run in Denver's Prairie Gateway Open Space Park. Racers may choose between the 15k or the 5k race. Do plan to arrive at least 30 minutes before race start to get your bib and complete registration.

  Race Day Details

  Time: 8:30am start. Show up at least 30 minutes early to get your bib and warm up!

  Location: Prairie Gateway Open Space in Denver.

  Course: The course is mostly on crushed gravel. The 5km stays in Prairie Gateway. The 15km has ~0.9mi paved, both ways.runs through the park.

  Parking: Prairie Gateway park is near I-70 and Quebec. Once you reach that intersection….Take Quebec north to Prairie Parkway/E 64th Ave.

  E/right on Prairie Parkway. N/left on Gateway Road. This is also the direction to the entrance of the Rocky Mtn Arsenal National Wildlife Refuge.

  Drive roughly 1/3 mile and use the parking lots along either side of the road near the registration pavilion.

  5k 15k Gravel Run

  Gateway Rd, Denver, Colorado, 80239, United States
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• City Park Classic (5k/10k & 1 Mile Walk of Hope for Pancreatic Cancer Research) [runsignup.com]
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  Sat, Nov 07, 2026 at 9:00 AM

  Description

  Get ready for the winter season while enjoying a race with your friends at the City Park Classic! 5k/10k finishers earn a MEDAL!

  November is Worldwide Pancreatic Cancer Awareness month - let's kick off the month by running for a cause! Consider adding a donation of which 100% goes directly to Pancreatic Cancer Research RIGHT HERE in Colorado at the CU Division of Surgical Oncology.

  DONATE NOW

  1 Miles 3.1 Miles 5k 6.2 Miles 10k Run Walk

  2001 Steele Street, Denver, Colorado, 80205, United States
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• Pumpkin Pie 5K/10K [bit.ly] [Register at runsignup.com]
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  Sat, Nov 21, 2026 at 9:00 AM

  Description

  Join us for a holiday tradition! The Pumpkin Pie 5K/10K is a flat and fast 5K and 10K held at City Park in Denver, Colorado. Start your holiday season off right with this family friendly run. All finishers will get a piece of delicious pumpkin pie, as well as top-notch chip timing, a race logo shirt, a finisher's medal, and a finish line expo with vendors and food.

  5k 10k Run

  Denver, Colorado, 80205, United States
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• Ugly Sweater 5K [bit.ly] [Register at runsignup.com]
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  Sun, Dec 20, 2026 at 9:00 AM

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  Get into the holiday spirit with the Ugly Sweater 5K! Runners and walkers, young and old, are invited to join us at Washington Park in Denver for a flat, fast 5K. Dress in a tacky sweater – the more...

  Get into the holiday spirit with the Ugly Sweater 5K! Runners and walkers, young and old, are invited to join us at Washington Park in Denver for a flat, fast 5K. Dress in a tacky sweater – the more tinsel, bows, reindeer and candy canes, the better. It’s not a fashion faux pas if you’re supposed to wear it! All finishers will get an ugly sweater race medal, a themed shirt and a finish line expo with vendors, food and cookies.

  5k Run Walk

  Denver, Colorado, 80209, United States
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Local Clubs & Organizations