Races

PLAYTRI - OFFICIAL TRIATHLON STORE OF IRONMAN We bring our expert in-house mechanics and triathletes to IRONMAN® Events and offer the highest quality rentals, repair and maintenance services for you and your bike. From race ready tunes up to complete overhaul packages, we'll keep you riding and racing smooth on the road! We are a full-service shop available onsite to take care of additional services leading up to and on race day.

🍀 St. Patrick’s Day Virtual Run – Run Bold. Run Lucky. Run Strong. 🍀 Celebrate the spirit of St. Patrick’s Day with more than just luck — celebrate it with Pride! Choose one of two T-shirt Designs:- St. Patrick with Beer: Our exclusive Kelly Green performance tee features an intricate, art-inspired design that commands attention. Ornate gold detailing, dynamic movement, and bold St. Patrick’s Day elements come together in a rich, eye-catching composition that stands out against the vibrant green backdrop. It’s more than a race shirt — it’s a statement piece. - Leprechaun with Clover: The shamrocks, Celtic design, and bold green-and-gold palette instantly scream St. Patrick’s Day!Our St. Patrick’s Day Virtual Run is your chance to chase your goals, conquer your miles, and earn your pot of gold the only way that matters: one determined step at a time. Whether you're running your fastest 5K yet or simply getting out there to move, this run is about heart, resilience, a

The Mountain Lions Track running program, provides a fun and encouraging environment for Elementary school aged children (5 - 11 years), to learn the basics of middle distance running over a 6-week period. They will learn good running form, improve both speed and strength, in an environment that is focused on the enjoyment of running. All of our running programs are held twice a week after school, and at a different local City of Boulder or City of Louisville Park, that is convenient to you. Over the course of the 6-week program, participants will have the opportunity to compete in 2 x FREE track meets. These track meets are designed for the kids to gain confidence in themselves, and their running ability, with the focus on competing with kids that have similar times and abilities. RACES:TRACK MEET 1 - Sunday, April 12thThis meet will be an "Introductory to Track" clinic, and kids will compete in hurdles, a 400m and relay event. This clinic is designed for kids that have never

Boulder's favorite spring tune-up race series. This family-friendly race is a series of four races Tuesday nights in May at the beautiful Boulder Reservoir in Boulder, CO. The Dash & Dine 5k is a great opportunity to sharpen your racing skills in the Spring and is perfectly timed to get you ready for the Bolder Boulder and placed into the best wave for you, as the race is an official Bolder Boulder qualifier. The Dash & Dine 5k is all about friends, fun, and a family atmosphere. Where else can you have a nice mix of veterans, beginners, and seasoned professionals all racing together?! After each race, you'll have a chance to relax, kick back with friends, and make a few more while enjoying the post-race dinner, awards ceremony, and raffle prizes from our sponsors.

The Friends of the National Center Science Stride 5K will hold its second annual run/walk in the Spring of 2026.   The Science Stride 5k brings together our community for a common cause: Inspiring the next generation of scientists! This event provides an excellent opportunity for everyone who believes in the importance of STEM education to come together and support Friends of the National Center. Runners and walkers of all abilities are encouraged to join!   Are you a remote employee or someone who wants to support our work from afar? Please sign up for our Virtual 5K! You'll run or walk and log your time. You can even join a team and receive a race t-shirt, just like our in person participants!   Your participation in the Science Stride 5K directly supports Friends’ mission is to inspire, support, and educate the next generation of scientists and researchers. Friends is committed to addressing the intricate challenges of our Earth system by ensuring that the cutting-edge research

Join Rise Against Suicide's 17th annual Emerge 5K Walk/Run- a free, family-friendly walk/run supporting youth mental health and suicide prevention in our community.  This uplifting community gathering features a dedicated kids zone, an area for connection and reflection, inspiring speakers, local vendors, live music by Kutandara, and local food trucks.  Along the course, butterfly signs will honor and remember the stories of those we love and those we’ve lost. Emerge brings our community together in hope, remembrance, awareness, and collective strength - reminding every person that they are not alone. WAYS TO PARTICIPATE Walk or RunStart a Team & Fundraise TogetherHonor a Story with a Butterfly SignBecome a SponsorDonate to our Mission EVENT SCHEDULE  8:00 AM Registration & Arrival9:00 AM 5K Start11:00 AM Event Concludes WHAT YOUR SUPPORT MEANS  Rise Against Suicide has funded more than 20,000 free therapy sessions and supported over 2,000 local youth at risk of suicide. O

One of the largest 10K races in the world with 50,000+ runners. Features live bands, costumes, and a stadium finish at Folsom Field.

Fun for all, from newcomers of any age racing for the first time to veteran competitors looking to test their fitness, all in a friendly, welcoming environment. We are back at CU Pott’s Field on a brand new track!! This summer we are hosting four total events in June, July and August at CU Potts Field, Boulder. And this means we can run our full schedule of track events (including the Steeplechase on July 18), jumps, and throws!!  BRR Members Save $5 off adult pricing! Use the email address associated with your membership. Non-Members can easily join in the registration process to immediately save.

Join us on Sunday, June 21st, for the Sunset Trail Running Festival in Gold Hill, CO! Hosted by The Boulder Watershed Collective and in collaboration with T.E.A.M Boulder, all money raised from the event will be donated to the town of Gold Hill, and will fund wildfire preparation and response initiatives such as forest restoration, home hardening, emergency planning, land stewardship, and community resiliency. This event provides an opportunity for the Front Range trail community, to show its support for small mountain town communities that live with a high risk of disruption and destruction from wildfire, while providing visitors with access to their unique character, beauty, and the surrounding landscapes. RACE DETAILSRunners can choose between a 28K (17.4M), 12K (7.7M), 5K, or Kids 1K trail race. All distances start and finish on the main street of Gold Hill at the Gold Hill Inn, and the longer distances are run, in part, on the National Forest System roads. Runners will enjoy varie

Fun for all, from newcomers of any age racing for the first time to veteran competitors looking to test their fitness, all in a friendly, welcoming environment. We are back at CU Pott’s Field on a brand new track!! This summer we are hosting four total events in June, July and August at CU Potts Field, Boulder. And this means we can run our full schedule of track events (including the Steeplechase on July 18), jumps, and throws!!  BRR Members Save $5 off adult pricing! Use the email address associated with your membership. Non-Members can easily join in the registration process to immediately save.

Join us for the 29th running of the Downtown Boulder Pearl Street Mile on Saturday June 27th, all taking place on the Pearl Street Mall. It is a massive night of 1-Mile races on our criterium multi-lapped course, that starts on Spruce St and 14th St. It completes 3.75 laps around the famous Boulder Court House and up the Pearl Street Mall. Famous Landmarks you will run past: Boulderado Hotel - 1909Boulder Theater - 1906Boulder Court House - 1933Pearl Street Mall - 1977 Races on offer: 5:00PM - Kids 800m5:20PM - Family and Friends 1-Mile5:40PM - 10min or slower5:55PM - 9:00 - 9:596:10PM - 8:00 - 8:596:25PM - 7:00 - 7:596:40PM - 6:00 - 6:596:55PM - 5:00 - 5:597:10PM - High School Girls7:25PM - High School Boys7:35PM - Elite Masters Men and Women7:50PM - Elite Women8:00PM - Elite Men With over 2000 spectators lining the course, and screaming their lungs out, what better way to spend your Saturday evening, than racing around Boulder's iconic land marks, and partying on the Pearl Street

Join us for the 17th edition of the Avery Brewing Company 4K on the 4th, which is one of Boulder’s best running traditions to do on the 4th of July! July 4th is celebrated in a number of different ways, with parades, barbecues, sparklers and fireworks, BUT there has been no better way since 2008 to get your July 4th morning off to a great start, than doing Boulder’s traditional Avery Brewing Company 4K on the 4th. It is run on a flat and fast course, then followed by the best post-race party with Avery Brewing Company beer, Savory Cuisines Catering breakfast burritos and live music! July 4th, also known as “Independence Day”, is a National holiday to mark the historic date in 1776, when the Declaration of Independence was approved by the Continental Congress. So wear your red, white and blue on Friday July 4th, and come and celebrate Independence Day with us! Our FREE T-Shirt offer ends Sunday, May 24th at 11:59PM. Baby strollers ARE allowed.NO Dogs are permitted in the race.There are

NO Race Day Registrations Fun for all, from newcomers of any age racing for the first time to veteran competitors looking to test their fitness, all in a friendly, welcoming environment. We are back at CU Potts Field again offering a full schedule of events.  BRR Members Save $5 off adult pricing!Use the email address associated with your membership. Non-Members can easily join in the registration process to immediately save.

Fun for all, from newcomers of any age racing for the first time to veteran competitors looking to test their fitness, all in a friendly, welcoming environment. We are back at CU Potts Field again offering a full schedule of events.  BRR Members Save $5 off adult pricing! Use the email address associated with your membership. Non-Members can easily join in the registration process to immediately save.

NO Race Day Registrations Fun for all, from newcomers of any age racing for the first time to veteran competitors looking to test their fitness, all in a friendly, welcoming environment. Held at the Historic Potts Field, home of the University of Colorado Track & Field Team, the facilities offer the full range of track and field events and is one of the only meets in Colorado that offer a chance to run the Steeplechase or throw the javelin. If you've been wanting to try a track race and run in the footsteps of CU stars such as Jenny Simpson, Emma Coburn, Joe Klecker, Val Constien, Dathan Ritzenhein, Alan and Shayne Culpepper, and Kara and Adam Goucher, now is your chance!

Join us for the Elevations Credit Union Buffalo Bicycle Classic on Sunday, September 13, 2026! Choose from nine unique ride options designed for every type of cyclist. Our road courses range from moderate rolling routes to the challenging Epic climbs. For dirt‑lovers, our gravel courses offer everything from long, demanding mountain gravel to scenic mid‑distance routes. And for families and newer riders, the Little Buff provides a fun, easy ride on car‑free bike paths.  Ride Boulder Canyon on one of the Epic courses:  If you’re riding the Epic, Epic 75, or starting the Gravel Epic, you’ll experience something truly special: westbound Boulder Canyon will be closed to vehicle traffic from 7–9 a.m. This is the one day all year when cyclists can enjoy this stunning canyon completely car‑free—an unforgettable perk reserved just for Buffalo Bicycle Classic riders. Help Us Fund the Future: The Buffalo Bicycle Classic is more than a ride—it’s a fundraising event dedicated to supporting Colorad