View some of the best races in Boulder, Colorado! RaceMob's race calendar allows you to find races that suits your needs. Use our advanced filters below or calendar on the right, and discover new races. We try to maintain up to date information, and rely heavily on our community of volunteers. If you find a race that we're missing, use the "Suggest Race" button on the right. Find RaceMob discounts that others have added or add deals that you've discovered.
Welcome to Denver's Best Spring Half Marathon! Saturday April 1, 2023 at Cherry Creek State Park Racing Underground brings you an amazing half marathon this spring! The Three Creeks Half Marathon features a half marathon course that is flat, fas...
Healthy Kids Running Series is a five (5) week running program in the spring and fall for kids Pre-K through 8th grade. Each HKRS Series takes place once a week and offers age appropriate running events including the 50 & 75 yard dashes, the 1...
Shoes & Brews and Nike Running Present: The 8th edition of the CollaBEERation 5k Race & Brew Fest Party This is no April Fools Joke! We are bringing back the CollaBEERation 5k and Brew Fest to it's original date - the first Saturday in ...
April is a lovely time to run with RMRR, and the City Park 4 mile run is a great way to celebrate spring. We usually have fabulous spring weather for this run, and it’s fun to run around the park and the zoo. As always, everyone is welcome, and...
Get your fundraising teams together and join us on Sunday April 2nd, for the “Boulder Voices For Children” Superhero 5K and Kids 1K Fun Run at Twisted Pine Brewing Company - 3201 Walnut St Suite A, Boulder, CO 80301. The first week of April is “W...
The Severance Chamber of Commerce is hosting our first ever 5k Color Run/Walk! This is a family-friendly run/walk that will take place at Severance Community Park with an Easter Egg Hunt (FREE EVENT) following shortly after hosted by Calvary Sever...
Saturday, April 8, 2023Half Marathon, Marathon and 50K all Start at 7:00 a.m. If you want your name included on the finisher's medal ribbon, and to be guaranteed a finisher medal, you must register before March 1, 2023. If registration for a dis...
5K:This is the Most Eggcellent of excellent 5Ks - an 80s themed 5k! Bring out your pastel, your shoulder pads, your blue eyeshadow, and that big hair! We cannot wait to see your spirit! We will start at McPhelemy Park, and then runners will tr...
Step Up for Women and Recovery is an event that brings together the community and supports scholarships for women who seek treatment for drug and alcohol addiction. People entering a program often commit to complete treatment but may face financia...
One of Colorado's favorite trails meets one of its most glorious parks at our 11th annual Beat the Heat! As courses wind southwest along Big Dry Creek Trail, the remarkable sight of Standley Lake with the Flatirons on the horizon will come into vi...
The Arvada event supports Community Table, an Arvada Food bank. Bring 5 items for donation on race day and you'll be entered into a raffle for great prizes from 3W Races and our sponsors! Welcome to the SPRING FLING Prairie Dog Half (part of the...
The Right Here, Right Now Climate 5K - will take place on Sunday, April 16th, which is the last day of the Right Here, Right Now Boulder Impact Forum hosted by UN Human Rights, and the University of Colorado Boulder from April 13 - 16, 2023. This...
Welcome to the 50th running of the Horsetooth Half Marathon. Your race will take you on a scenic point-to-point journey from the location of Hughes Stadium, the former home of the CSU Rams, to the finish line party at New Belgium Brewery. On the w...
Healthy Kids Running Series is a five (5) week running program in the spring and fall for kids Pre-K through 8th grade. Each HKRS Series takes place once a week and offers age appropriate running events including the 50 & 75 yard dashes, the 1...
Healthy Kids Running Series is a five (5) week running program in the spring and fall for kids Pre-K through 8th grade. Each HKRS Series takes place once a week and offers age appropriate running events including the 50 & 75 yard dashes, the 1...
HERO Kids Sports "Inspiring the HERO Inside" Specialized sports program utilizing biometric exercises that will promote the development of gross motor skills, coordination and balance. HERO Slap Shot Floor Hockey and HERO Dunks and Jumpers Baske...
We are pleased to offer 3 x Spring track meets for middle distance and distance runners, that will be conducted similarly to the BMC (British Milers Club) meets. All meets will be held at Niwot High School. Our 3rd track meet, known as the Frank S...
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 5...
JOIN US FOR THE 14TH ANNUAL FLYING PIG 5K The Flying Pig 5K is a fundraiser to benefit families in the Family Support Services Program (FSSP). FSSP provides funds designated to assist families who provide support at home to their family member wi...
Valor Christian High School is excited to offer strength and conditioning camps for boys and girls in grades 7-8. These camps are for anyone interested in attending Valor Christian High School or any other high school. These camps will take place...
Join us for our We Care "Chili Chase" Fun Run. This is an UNTIMED fun run/walk and will be approximately 5K. The event will be held on Friday, April 28th from 4:00-8:00. Our course will begin and end at Weld Central High School. Registration for ...
The Fairmount 5k has been an essential fundraiser for almost 30 years at Fairmount Park. This year, following the 5k run, walk and fun run we invite you to stay and visit with your friends while enjoying some music, a pancake breakfast and desser...
Come run a PR in Adams County. Both races start/finish at Riverdale Regional Park, and run along gently flowing waters of the S. Platte, with wildlife, wildlife sculptures, and mountain views. Racers get tech running socks, finisher medals/glasses...
We are pleased to offer 3 x Spring track meets for middle distance and distance runners, that will be conducted similarly to the BMC (British Milers Club) meets. All meets will be held at Niwot High School. Our 3rd track meet, known as the Frank S...
Adams County will host its tenth annual 5K race, and 1 mile fun run on Saturday, May 6th at the Riverdale Regional Park which is home to the Adams County Fair. Registration opens at 6:45 a.m., and the 5k race starts at 7:30 a.m. The Fun Run will...
Rocky Mountain Road Runners holds a monthly series of timed races in the Denver area. We provide a low-key and COVID-safe running environment, and everyone is welcome to run with us! Our May race will run at Stapleton's Central Park, and we will...
Great family-friendly course for 2023! Bring your family and friends and join in the fun at the 8th Annual HRCA Mother’s Day 5K! Sign up the whole family and make it a morning of activity they can all enjoy. First-time 5K participants, elite run...
Get ready for a 5K & 2-Mile walk that begins and ends at the beautiful Carpenter Park. Participants can join us for an in-person run or walk run on their own time with our virtual option. All participants who register by the shirt cutoff dat...
DUE TO FACILITY SECURITY GUIDELINES, RACE REGISTRATION WILL CLOSE 2 DAYS PRIOR TO THE EVENT. THERE WILL BE NO ONSITE/RACE DAY REGISTRATION. COME JOIN US FOR THE 2023 FEDERAL CUP 5K! This will 38th Running of the Federal Cup 5K. Each participant...
The Colorado Friends of First Responders (CFoFR) annual 10K Run 5K Run/walk Memorial Event is dedicated to the memory of those who lost their lives on the scene of an AirLife Denver medical helicopter crash that occurred in 1997. This event keeps ...
If you’ve done a traditional 5K, you know they can be a bit lackluster. But the BUBBLE RUN™ is like running through Willy Wonkas’ factory. Clad in white t-shirts, adults, kids and strollers run, walk, dance and play across 3 miles of absolute fun!...
The Denver Mother's Day 5K – It's What Colorado Moms Do! This year, pancake and sausage breakfast with OJ is provided by Flippin' Flapjacks for all registered participants. All female participants will be greeted at the finish line with a rose to...
We are excited to return to Westminster for the 2023 Colorado Women's Classic! While focused on women, all genders are WELCOME at this event! We will run this event rain or shine! :)
Explore the trails through the Scrap Yard Scramble this summer at Race #1 of the 22nd Annual Summit Trail Running Series. Race #1 is at the Dillon Dump Loops with a 5K short course and 8K long course. Back by popular demand post race parties will ...
We are pleased to offer 3 x Spring track meets for middle distance and distance runners, that will be conducted similarly to the BMC (British Milers Club) meets. All meets will be held at Niwot High School, and this track meet is known as the "Fra...
The Cerus Fitness Festival is a local celebration of health & fitness. This two-day event brings local businesses from the Town of Frederick to Centennial Park to promote nutrition, movement, and fitness in all forms. Participants will experie...
Date: Saturday, May 20th 2023 Race Start Time: 10:00AM Location: Charlie's Place - 498 W Dumont Rd, Dumont, CO 80436 (Please see note below on new Starting Line location) Grab your family and friends (don't forget Fido!), your running (or walki...
We are so thrilled to announce the return of our 11th annual Gluten Free Gallop 5K! Come join Denver Celiacs to raise awareness of Celiac Disease and gluten related disorders. Our 11th Annual Gluten Free Gallop 5K will take place at Clement Park ...
This family friendly event begins and ends on the track at the North Area Athletic Complex (NAAC) in Arvada with a scenic trek along the Fairmount Trail in the middle. Following the 5K there is a 50-yard Jordyn's Adaptive Dash where children with ...
The Healing Warriors 2nd Annual 5k Fun Run/Walk is a fun, family & pet friendly event held at the beautiful Spring Canyon Park. This professionally timed event is perfect for serious runners who may be looking to improve a time, or just have a...
Run, Walk, Ruck or choose a Relay Team: 50K, Heavy Marathon, Heavy Half Marathon, and 7k run or ruck, brought to you by the run.Windsor Race Series. Held on the Poudre River Trail. Connecting Windsor to Greeley, this race will strengthen your re...
Roads? ....where we're going we don't need roads! Celebrate kicking off the New Year right and come Time Travel through our events! You’ll be doing the hustle through the far-out miles of this tubular race man! With all the other cool groovy ch...
HERO Kids Sports is a non-competitive sports enrichment program teaching the fundamentals of sports and the values of teamwork. We're bringing the FUN back to sports! *Children must be fully potty trained to attend camp. Our HERO Coaches will no...
HERO Kids Sports is a non-competitive sports enrichment program teaching the fundamentals of sports and the values of teamwork. We're bringing the FUN back to sports! *Children must be fully potty trained to attend camp. Our HERO Coaches will no...
Sponsored by Charles Schwab • Hosted by Colorado Veterans Project www.FreedomFourMiler.com Colorado Veterans Project invites everyone to come together to celebrate the 4th of July the way it was meant. Celebrate your Freedom while helping us rai...
Community Reach Center presents our 4th Annual Reach For Recovery 5K. This event has a timed 5K Run & a Fun Run/ Walk Kids Fun Run Snacks, Food & Beverages Prizes!! All to promote Mental Health Awareness
Stepping Stone Support Center and Trailhead Community have come together to present this amazing event to benefit adults with developmental disabilities, raising both awareness and funds to give these participants a home of their own! Join us on J...
Rocky Mountain Road Runners holds a monthly series of timed races in the Denver area. We provide a low-key and COVID-safe running environment, and everyone is welcome to run with us! Our June race will run in Denver's Bible Park, and we will hav...
The Colorado 13er is THE event where the best parts of trail running and road racing combine to create a truly enjoyable, kind-to-your-body, well-supported 13.1 race! Seasoned runners and first-timers alike appreciate the excellent communication f...
HERO Kids Sports is a non-competitive sports enrichment program teaching the fundamentals of sports and the values of teamwork. We're bringing the FUN back to sports! *Children must be fully potty trained to attend camp. Our HERO Coaches will no...
HERO Kids Sports is a non-competitive sports enrichment program teaching the fundamentals of sports and the values of teamwork. We're bringing the FUN back to sports! *Children must be fully potty trained to attend camp. Our HERO Coaches will no...
HERO Kids Sports is a non-competitive sports enrichment program teaching the fundamentals of sports and the values of teamwork. We're bringing the FUN back to sports! *Children must be fully potty trained to attend camp. Our HERO Coaches will not...
HERO Kids Sports is a non-competitive sports enrichment program teaching the fundamentals of sports and the values of teamwork. We're bringing the FUN back to sports! *Children must be fully potty trained to attend camp. Our HERO Coaches will no...
HERO Kids Sports is a non-competitive sports enrichment program teaching the fundamentals of sports and the values of teamwork. We're bringing the FUN back to sports! *Children must be fully potty trained to attend camp. Our HERO Coaches will no...
This series is MADE for ROOKIES - looking to learn 'how to run or race'. THIS is the place to feel welcome and where you can ask ANY question.Race in EITHER distance offered at each event; you can choose the 5k for every single event, or you can ...
Ready to get off the sofa and gallop around Thornton with some friends? Yeah, you are! Come frolic with us at the Unicorn Runner 5k in Thornton to kick off your summer! You'll earn a sweet tee shirt and a flashy unicorn finisher medal! It's a ...
Start the summer with our 11th Annual Summer Breeze! NEW LOCATION from the award winning Apex Center, these 5K, 10K & Half Marathon courses will run west along the 2020 Best of the Best Ralston Creek Trail through Arvada's open spaces and stun...
Loading more results..
