View some of the best 10K 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 the Windsor Marathon. This event starts and ends at The Island at Pelican Lakes in Water Valley, with a great after party including breakfast, drinks, music and a live band! Tour beautiful Windsor on a variety of terrain, through golf c...
Santa Catch 5K, 10K and 1 Mile Kids Fun RunSaturday December 16, 2023NOCO Sports Center - Windsor, CO Start your holiday season with the joy of running, with courses through the Highland Meadows neighborhood, and enjoy the warmth of the NOCO Spor...
Join us for the annual Summer Sizzler 5k/10k/15k! A fun summer event that is perfect for the whole family. The fun includes - Great Swag - designer shirt & custom medal Chip-timing with live results and awards Free photos Delicio...
One of Colorado's favorite trails meets one of its most glorious parks at our 9th annual Fallfest! As courses wind southwest along Big Dry Creek Trail, the remarkable sight of Standley Lake with the Flatirons on the horizon will come into view. It...
The Autumn Run is held each year on the third weekend in September, in and around the historic, friendly, and picturesque town of Buena Vista, Colorado. Nestled in the upper Arkansas River Valley at the base of the Collegiate Peaks, the Autumn Run...
From the heart of the West Metro area and the Stenger Soccer Complex, All-Out brings you our 12th annual Summer Breeze! Along with its Endless Series sidekick in January, Polar Prowl, these 5K, 10K and Half Marathon courses will follow Van Bibber ...
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 ...
As those summer mornings are just beginning to cool, join us for a celebration to end the season and our 11th Annual Runapalooza! From the award winning Apex Center, these 5K, 10K & Half Marathon courses will run west along the 2020 Best of th...
Join us for the annual Spooky Sprint 5k/10k & Half Marathon! A fun, Halloween-themed event that is perfect for the whole family. The fun includes - Great Swag - designer shirt & custom medal Chip-timing with live results and awards...
We would love to have you join us for this fun event that kicks off our Prairie Dog Race Series! Make it your annual Martin Luther King Jr. remembrance weekend event! Yes, we run in January and for many of the years, we've enjoyed WARM race morni...
Walk or run with run.Windsor and Peculier Ales for our Independence Day Race, starting and ending at Windsor Lake and utilizing the Canal Trail. The race start and finish area will feature live local music, food trucks, free beer for finishers 2...
Welcome to the Pioneer Prairie Dog Half Marathon event; the one that started the series! With 10k and 5k events too! Everyone is back to school and slipping into a routine. Make this your mental health break as you break away from the chaos of ...
This is not your run of the mill 'Turkey Trot.' This is the 10k Turkey TREK! Are you up for the challenge? Run a steady uphill climb to the summit of the course at the 3 mile mark. Poised at the top of the hill is the infamous EGG NOG CHUG Cha...
Each race will run through a part of Loveland we haven’t highlighted until this race. You can pick which distance you want to run! Bring a new, unwrapped toy to the start line and be ready for the “drop”. This race benefits Realities for Children....
One of Colorado's favorite trails meets one of its most glorious parks at our 12th 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...
We are excited to return to Westminster for the 2024 Colorado Women's Classic! While focused on women, all genders are WELCOME at this event! We will run this event rain or shine! :)
Celebrate the last blast of summer at the Labor Day Half Marathon. Sweat your socks off and let summer have its last hooray at Parker’s Salisbury Park, just a few miles southeast of Denver. There’s a distance to meet every taste with a half marath...
Welcome to the Summer Splash Prairie Dog Half, 10k & 5k in Castle Rock, Colorado. Part of the Prairie Dog Half race series, join us in July as we race through Castle Rock along the East Plum Creek Trail. For all race info, click the "race in...
From the base of Table Mountain and Colorado's spectacular foothills, All-Out Multicourse presents our 13th annual Kooky-Spooky from Jefferson County's NAAC Stadium… easily accessible from several nearby highways. Along with its Endless Series sid...
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 chicks...
From the base of Table Mountain and Colorado's spectacular foothills, All-Out Multicourse presents our 12th annual Spring Fever from Jefferson County's NAAC Stadium… easily accessible from several nearby highways. Along with its Endless Series sid...
All participants will receive chip timing, photos, Lucky Brew Socks and a great after party, complete with beverages, food trucks and awards ceremony for top finishers. Starting and ending at Eastman Park, you'll love views of Longs Peak as you ru...
Get ready for some fun in the sun and a great mid-season test of your training as we bring our 12th Annual Dog Days 5K, 10K & Half Marathon! Centrally located between Denver & Boulder along with its Endless Series sidekick in December Fa L...
You CAN 5k. This event is for EVERY ONE. EVERY BODY. You won't get lost. You won't get forgotten. You'll run a clearly marked 5k loop with multiple portojohns & aid stations along the way. And if you're up for a 10k you'll be running th...
Giddy Up to the Holy COW Trail Stampede where we hit the trail together! Growing Home is our Charity Partner - check out the Raffle Page to learn how your donation to Growing Home can win you something awesome! All information you need to know ab...
The Wildcat Mountain trail races take place starting at the Douglas County East/West trailhead at Rocky Heights Middle School and run along the E/W trail to the beautiful HRCA Backcountry Wilderness Area Wildcat Mountain trail system.
So Long to Summer 5K/10K Enjoy the end of another Colorado summer with a workout with family and friends, and then reward yourself with delicious pancakes and a beer! Date: Sept. 21, 2024Time: 10K: 8 a.m. 5K: 8:05 a.m.Location: Salisbury Park, ...
Dress up as your favorite American Hero! This could be your mom, dad, Albert Einstein, Batman, Superman, or the Powerpuff girls! This event is all about celebrating GREAT people who do and have done GREAT things! Come be GREAT with us! Sign up f...
Winter never disappoints us when racing in February in Highlands Ranch! You won't feel chilly after a course so hilly! After conquering the 5k or 10k distance, warm up with hot apple cider or hot cocoa at the finish line in your new FINISHER mug...
Welcome to the 8th annual All-Out Mardi Crawl! 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 stunning golf course co...
10K & 5K:These are the Most Eggcellent of excellent races - 80s in all its glory! Bring out your pastel, your shoulder pads, your blue eyeshadow, and that big hair! We will start and end at McPhelemy Park. This run is stroller friendly! The...
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 ...
Love 'em or Leave 'em Valentine's Day 5K/10K Will you embrace the holiday full of heart or will you run from Cupid? Either way, you're going to LOVE this fun and festive workout with family and friends...oh, and those pancakes! Date: Feb. 10,...
From the heart of the West Metro area and the Stenger Soccer Complex, All-Out brings you our 10th annual Polar Prowl! Along with its Endless Series sidekick in June, Summer Breeze, these 5K, 10K and Half Marathon courses will follow Van Bibber Cre...
Get ready for a 5K run/walk, 10K run/walk, & 2-Mile walk that begins and ends at (Course will be announced soon). Participants can join us for an in-person run or walk run on their own time with our virtual option. All participants who regis...
*Register by Sunday at midnight the weekend BEFORE the race to be guaranteed a shirt!Join us for the annual Time to Paddy 5k/10k and Lucky 13.1 Half Marathon! A St. Patrick-themed run that is perfect for the whole family. The fun includes great s...
Question: Is it supposed to be DO NOT STOP, or DONUT STOP? Answer: YES! Like Running or Walking? Love Donuts? This race is for you! Join us for the annual Donot Stop 5k/10k! A donut-themed event that is perfect for the whole family. The fu...
Join us for a fun progressive series in Westminster! Series participants will enter at their own pace - running a 1 mile race in the first event and adding a mile at each event to complete a full 10k (6.2 Mile) race at the end of the series. Th...
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