30 events in Denver, Colorado

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

• Dash for Detection: Oral Cancer Awareness 5K [runsignup.com]
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  Sat, Apr 11, 2026 at 8:00 AM

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  RACE POSTPONED TO 2027

  We regret to inform you that the 2026 Dash for Detection: Oral Cancer Awareness 5K has been canceled. Due to circumstances beyond our control, we were unable to secure...

  RACE POSTPONED TO 2027

  We regret to inform you that the 2026 Dash for Detection: Oral Cancer Awareness 5K has been canceled. Due to circumstances beyond our control, we were unable to secure the necessary credentialing to move forward with the event this year.

  All registered participants will receive a full refund of their race registration fees within the next few weeks. No further action is needed on your end.

  While this is not the news we hoped to share, please know that our commitment to raising awareness for oral cancer and supporting those currently battling the disease—as well as honoring those we have lost—remains unwavering. We are already exploring alternative options and beginning preparations to ensure the 2027 race is even bigger and better than ever.

  Thank you for your understanding, continued support, and belief in the mission of Dash for Detection.

  Please reach out if you have any questions or concerns,

  All my best,

  Riley Spillar

  riley.spillar@cuanschutz.edu

  ORAL CANCER INFORMATION & TOOL KIT

  For the patient: https://agdfoundation.org/resources/oral-cancer-toolkit/i-am-a-patient/

  For the dental professional: https://agdfoundation.org/resources/oral-cancer-toolkit/i-am-a-dental-professional/

  3.1 Miles 5k Run

  2001 Colorado Blvd, Denver, Colorado, 80205, United States
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• Hop Into Spring 5K - Denver [fivestarntp.com] [Register at runsignup.com]
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  Sun, Apr 12, 2026 at 8:00 AM

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  Who's ready to hop into Spring?

  Shake off winter and welcome the sunshine at the Hop Into Spring 5K! This fun, friendly run invites athletes of all ages and paces to kick off the new season on a...

  Who's ready to hop into Spring?

  Shake off winter and welcome the sunshine at the Hop Into Spring 5K! This fun, friendly run invites athletes of all ages and paces to kick off the new season on a smooth, flat course perfect for both runners and walkers. Whether you're chasing a personal best or enjoying a refreshing spring stroll, this race is the perfect way to celebrate longer days, warmer weather, and fresh starts.

  We’ll be recognizing excellence across the field with awards for the Top Three Male and Female Overall finishers, as well as Master, Grand Master, and Senior Master Overalls. In addition, the top three athletes in each of the traditional five-year age groups will take home awards.

  Come hop into spring with us—your season of racing starts here!

  Custom Bibs & Finisher Medals for everyone!

  5k Run Walk

  Denver, Colorado, 80238, United States
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• Donut Dash [bit.ly] [Register at runsignup.com]
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  Sun, Apr 12, 2026 at 9:00 AM

  Description

  The Donut Dash 5K is Denver’s race that ends with donuts. Runners and walkers can take advantage of a flat and fast course, and then enjoy fresh donuts at the finish. Our mission is to bring people together to have a fun, fit morning.

  5k Run Walk

  Denver, Colorado, 80209, United States
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• Unicorn 5k (Denver-East) [runsignup.com]
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  Sun, Apr 26, 2026 at 9:00 AM

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  Ready to gallop around Denver with some friends? Yeah, you are! Come frolic with us at the Unicorn Runner 5k at Great Lawn Park to kick off your spring running season! You'll earn a sweet tee shirt...

  Ready to gallop around Denver with some friends? Yeah, you are! Come frolic with us at the Unicorn Runner 5k at Great Lawn Park to kick off your spring running season! You'll earn a sweet tee shirt and a flashy unicorn finisher medal!

  It's a 5k distance for all, and whether you walk, trot, canter or gallop, we'll be happy to see you! This event also features a shorter saunter for those not quite ready to enjoy a full 5k! The untimed 1/2 mile run is long enough to get your heart rate up and be a 'real run' without being a sprint!

  Costumes are encouraged and we're holding a COSTUME CONTEST for DIY costume clad participants!

  Remember to refer your friends and you can earn back up to $20 back from your registration fee (valid only on the 5k distance). Also - teams of 5 or more each get $5 off their registration. So form a group and get your buddies to join you today!

  All the info you need about this event is found on this site - click the menu bar or scroll to the bottom to see a listing of all page links!

  If you're looking for the Blessing of Unicorn running early in the summer on the north side of town, CLICK HERE for the Thornton event. Looking to run at the end of summer on the south side of town, CLICK HERE for the Highlands Ranch event!

  The Balloon Guy will be back this year- creating balloon creations for all!

  3.1 Miles 5k Run Walk

  Denver, Colorado, 80230, United States
  OpenStreetMap Google Maps
• RMRR May Trophy Series [rmrr.org] [Register at runsignup.com]
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  Sun, May 03, 2026 at 8:00 AM

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  Rocky Mountain Road Runners holds a monthly Trophy Series race in the Denver area.

  Our May race will run at Denver's Central Park. We have both 5mi and 5km courses. The 5mi uses our handicap start...

  Rocky Mountain Road Runners holds a monthly Trophy Series race in the Denver area.

  Our May race will run at Denver's Central Park. We have both 5mi and 5km courses. The 5mi uses our handicap start system, slow-to-fast, spread out over ~25 minutes. This gives everyone a chance to win. All 5km racers will start ~10min after the first 5mi starters.

  Race Day Details

  Date: Sunday May 5th

  Time: 8:00am. Show up at least 30 minutes early to get your bib and warm up!

  Location: Denver's Central Park in Denver

  Course: Mostly flat on paved paths around Central Park

  Parking: Denver's Central Park is located on Martin Luther King Blvd at Beeler, east of Quebec St in Denver. Meet at the pavilion.

  5k 5 Miles Run

  9196 M.L.K. Jr Blvd, Denver, Colorado, 80238, United States
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• Denver Mother's Day 5K [runsignup.com]
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  Sun, May 10, 2026 at 9:00 AM

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  Celebrate Mother’s Day in Motion at the 2026 Denver Mother’s Day 5K!

  Looking for a fun, active, and memorable way to celebrate Mother’s Day this year? Join us for the Denver Mother’s Day 5K—a festive...

  Celebrate Mother’s Day in Motion at the 2026 Denver Mother’s Day 5K!

  Looking for a fun, active, and memorable way to celebrate Mother’s Day this year? Join us for the Denver Mother’s Day 5K—a festive run/walk that’s perfect for all fitness levels. Whether you're running, walking, or pushing a stroller, this is an awesome way to spend quality time with the amazing moms in your life.

  Event Highlights

  🏞️ Scenic Course: Enjoy a beautiful route through Denver’s iconic City Park

  🎉 Cheerful Atmosphere: Feel the energy from supportive spectators and enthusiastic volunteers

  🌹 Special Touches: Every female participant receives a rose at the finish line

  🥞 Delicious Breakfast: Registered participants enjoy a pancake + sausage breakfast with OJ, provided by Flippin' Flapjacks

  Race Details

  📅 Date: Sunday, May 10, 2026

  ⏰ Start Time: 9:00 AM (chip-timed by Colorado Race Timing with live results + optional race-day text/email updates)

  📍 Location: Denver City Park

  💵 Youth Pricing: Ages 14 & under run for just $25.00 (automatically applied at checkout)

  Early Registration Perk

  Register by April 19, 2026 to purchase (optional add on) a super-soft Bella + Canvas tri-blend race t-shirt (unisex, form-fitted).

  ✅ No t-shirts will be available after this date.

  Packet Pickup

  📦 Pre-Race Pickup: Saturday, May 9, 2026 | 10:00 AM – 2:00 PM

  📍 Location: Fleet Feet

  3000 E 1st Ave #112, Denver, CO 80206

  Awards & Age Groups

  🏅 Custom 3.5” Die Cast Medals with Lanyards for:

  Top 3 Overall Males & Females

  Top 3 in each age group:

  10 & Under

  11–14

  15–19

  20–29

  30–39

  40–49

  50–59

  60–69

  70+

  🕖 Same-Day Registration: Opens at 7:30 AM on race morning

  Parking Options

  🚗 East High School Lot: 1600 City Park Esplanade (Josephine St. between 16th & 17th)

  🚗 Lots along 23rd Ave: Between York St. & Colorado Blvd (avoid Denver Zoo & Museum lots)

  🚗 Street Parking: South of 17th Ave between Colorado Blvd and York St

  🎽 Sign up today to make this Mother’s Day one to remember—with fresh air, friendly faces, and awesome memories at the 2026 Denver Mother’s Day 5K!

  5k Run Walk

  3201 17th St, Denver, Colorado, 80206, United States
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• Denver Marathon [finishers.com] - Facebook
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  Sat, May 16, 2026

  5k 10k Half Marathon Marathon Run

  Denver, Colorado, United States
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• 2026 Denver Colfax Marathon [runcolfax.org]
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  Sun, May 17, 2026

  5k 21k 42k Marathon Run

  City Park, Denver, CO, USA
  Denver, Colorado, United States
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• 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
  OpenStreetMap Google Maps
• 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
  OpenStreetMap Google Maps
• 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
  OpenStreetMap Google Maps
• 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
  OpenStreetMap Google Maps
• 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
  OpenStreetMap Google Maps
• 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
  OpenStreetMap Google Maps
• 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
  OpenStreetMap Google Maps
• 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
  OpenStreetMap Google Maps
• 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
  OpenStreetMap Google Maps
• Ugly Sweater 5K [bit.ly] [Register at runsignup.com]
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  Sun, Dec 20, 2026 at 9:00 AM

  Description

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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
  OpenStreetMap Google Maps

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