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Popular Thornton, Co 5K Races

View some of the best 5K races in Thornton, Co! 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.

    • 5K

    Thornton, CO

    2.36 miles away

    I'm Attending

    Unicorn 5k (North)

    / 1 RaceMobber Scheduled

    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 ...

    • 5K

    Littleton, CO

    18.98 miles away

    I'm Attending

    Gobble Wobble Run

    / 1 RaceMobber Scheduled

    The Gobble Wobble Run is a family friendly 5K that has been going strong since 2010!  We welcome all ages and abilities.  Our race takes place at beautiful Clement Park in Littleton, Colorado every Thanksgiving morning Frequently Asked Questions:...

    • 5K

    Thornton, CO

    2.53 miles away

    I'm Attending

    Run For My Neighbors - 5k for Fire Relief

    This is a physical way to show support for our neighbors affected by the Marshall and Middlefork Fires of December 30, 2021.   Registration is by donation only and all donations go DIRECTLY to the Boulder County Wildfire Fund (Community Foundatio...

    • 5K

    Denver, CO

    8.4 miles away

    I'm Attending

    Valentines Cupid Run DENVER VR

    Run in our first Valentines Cupid Run on your own time and pace on our designed course! How it Works:1. Signup for the Marathon, Half-Marathon, 10K, or 5K.   2. Get a running shirt, race bib, finisher's medal and race course mailed to you.  3. Sta...

    • 5K

    Anywhere, CO

    4.47 miles away

    I'm Attending

    Sunrise Marathon COLORADO VR

    Run in our first Sunrise Marathon Virtually!    How it Works:1. Signup for the Marathon, Half-Marathon, 10K, or 5K.   2. Get a running shirt, race bib, finisher's medal and race course mailed to you.  3. Start @ the same start line as others a...

    • 5K

    Denver, CO

    8.71 miles away

    I'm Attending

    Sunrise Marathon VR DENVER

    Run in our first Sunrise Marathon on your own time and pace on our designed course! How it Works:1. Signup for the Marathon, Half-Marathon, 10K, or 5K.   2. Get a running shirt, race bib, finisher's medal and race course mailed to you.  3. Start @...

    • 5K

    Thornton, CO

    2.53 miles away

    I'm Attending

    Lucky Dog Dash

    Lucky to be a dog owner?  Show your love with the Lucky Dog (Owner) Dash! This is a 5k Run with (or without) your lucky dog during the luckiest month of the year!  All the info you need to know about this race is on this website.  Click the menu ...

    • 5K

    Windsor, CO

    42.44 miles away

    I'm Attending

    Lucky Brew Race 5k & 10k

    Start your St. Patrick's celebration with a 5k or 10k on the Poudre River Trail. All participants will receive chip timing, free photos, rockin’ Lucky Brew Socks and a great after party sponsored by High Hops Brewery complete with food trucks and ...

    • 5K

    Highlands Ranch, CO

    22.23 miles away

    I'm Attending

    HRCA St. Patrick's Day 5K

    Grab your friends, family, running/walking shoes, your best Irish costume, and join us as we celebrate St. Patrick's Day with a festive 5K!  Presented by Living the Dream Brewing Company, this year's St. Patricks Day 5K will be the most fun anyone...

    • 5K

    Denver, CO

    33.02 miles away

    I'm Attending

    Winter Warm Up- Denver

    Like Running or Walking?  Love Flannel?  This race is for you!  Join us on Sunday, March 20th, 2022 for an exciting new event that features the amazing scenery and landscape of TBA!  Whether you are looking to run, walk or just enjoy the race SWA...

    • 5K

    Denver, CO

    8.69 miles away

    I'm Attending

    Central Park 5k

    Is it spring or still winter?  We'll know when we run the Central Park 5k on the fourth Sunday in March!  Celebrate the end of winter with us on this flat and fast course in Stapleton's neighborhood Central Park!  --------------------------------...

    • 5K

    Arvada, CO

    9.65 miles away

    I'm Attending

    Spring Fling Prairie Dog Half, 10k, & 5k

    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...

    • 5K

    Denver, CO

    10.9 miles away

    I'm Attending

    Mile High Mile & 5k

    Think you're the fastest in Denver? Test your spikes at the Mile High Mile with prizes for ELITE and OPEN divisions!  A 5k event is also offered!

    • 5K

    Denver, CO

    7.27 miles away

    I'm Attending

    STRIDE Storybook 5k

    Please join STRIDE Community Health Center for its annual Storybook 5k!  As we share the stories of more than 50,000 patients STRIDE serves annually, we encourage you to dress up as your favorite storybook character as you walk or run to raise muc...

    • 5K

    Littleton, CO

    23.91 miles away

    I'm Attending

    HRCA Mother's Day 5K

    Bring your family and friends and join in the fun at the 8h Annual HRCA Mother’s Day 5K! Soak in the amazing views of the front range, Highlands Ranch Windmill and Highlands Ranch Mansion by running, walking, or strolling. Sign up dad and the kids...

    • 5K

    Westminster, CO

    5.2 miles away

    I'm Attending

    Colorado Women's Classic - Westminster

    We are excited to return to Westminster for the 2022 Colorado Women's Classic! Traditionally a female-only event, we're opening up the race for men to come race and celebrate Mother's Day with their loved ones! Sign up to race with us IN PERSON on...

    • 5K

    Denver, CO

    8.54 miles away

    I'm Attending

    Denver Mother's Day 5K

    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...

    • 5K

    Lakewood, CO

    12.92 miles away

    I'm Attending

    Federal Cup 5k

    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 2022 FEDERAL CUP 5K! This will 37th Running of the Federal Cup 5K. Each participant...

    • 5K

    Arvada, CO

    13.56 miles away

    I'm Attending

    Miles for Smiles 5K

    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 disabled child...

    • 5K

    Denver, CO

    8.64 miles away

    I'm Attending

    Spring Sprint- Denver

    Like Running or Walking? How about the warmer weather? Then we have an event for you... the Spring Sprint, the second chapter of our Seasons Series! Join us for an exciting new event that features amazing scenery and great times!  Whether you are...

    • 5K

    Denver, CO

    9.17 miles away

    I'm Attending

    Flamingo Day 5K

    For more info, please visit the official race website: www.ColoradoRunnerEvents.com

    • 5K

    Westminster, CO

    6.95 miles away

    I'm Attending

    Six Pack Summer Series Westminster- 1 mile & 5k

    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...

    • 5K

    Westminster, CO

    6.95 miles away

    I'm Attending

    Six Pack Summer Series Westminster

    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 ...

    • 5K

    Lafayette, CO

    10.69 miles away

    I'm Attending

    Run for the Sun 5K

    The 5th annual Run for the Sun 5K is back and LIVE for 2022! We want to welcome back the community for our summer annual 5K (or approximately 3500 steps) that weaves through the heart of Lafayette. This year, we are joining together with our chari...

    • 5K

    Westminster, CO

    6.95 miles away

    I'm Attending

    Six Pack Summer Series Westminster- 2 mile & 5k

    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...

    • 5K

    Arvada, CO

    9.67 miles away

    I'm Attending

    Father's Day Classic 1 Mile, 5k, 10k, & 10 Miler

    It's an annual Fathers Day tradition in Arvada!  All are welcome - walkers, joggers and speed demons, too!  In 2019, we added a 10 mile distance to this fun event and t-shirts for ALL participants!  The Fun Run is an un-timed 1 mile out and back r...

    • 5K

    Westminster, CO

    6.95 miles away

    I'm Attending

    Six Pack Summer Series Westminster- 5k

    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...

    • 5K

    Windsor, CO

    42.76 miles away

    I'm Attending

    Red, White and Brew 5K & 10K

    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 have music, a coffee/treat truck, donut truck, free beer for fin...

    • 5K

    Loveland, CO

    36.25 miles away

    I'm Attending

    Loveland Liberty 5K

    The LL5K, hosted by Sweetheart City Racing is scheduled to begin at Loveland Fairgrounds Park on Thursday, July 4th at 8:00 am. We are proud to support a local Veteran group, High Plains Honor Flight with the 2022 Liberty 5K. There is a cash purse...

    • 5K

    Littleton, CO

    22.23 miles away

    I'm Attending

    HRCA Independence Day 5K

    Kick-off your 4th of July with a family-friendly and festive 5k! This is a family friendly event so you are welcome to bring your strollers and your dogs. This fun family run/walk is a great way to kick off your 4th of July holiday. As part of the...

    • 5K

    Westminster, CO

    6.92 miles away

    I'm Attending

    Six Pack Summer Series Westminster- 4 mile & 5k

    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...

    • 5K

    Brighton, CO

    6.6 miles away

    I'm Attending

    I Can 5k (Featuring the Deja Vu 10k and 15k!)

    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 or 15 distance, you'...

    • 5K

    Westminster, CO

    6.92 miles away

    I'm Attending

    Six Pack Summer Series Westminster- 5 mile & 5k

    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...

    • 5K

    Castle Rock, CO

    31.72 miles away

    I'm Attending

    Summer Splash Prairie Dog Half, 10k, & 5k

    Welcome to the Summer Splash Prairie Dog Half, 10k & 5k in Castle Rock, Colorado. Visit www.PrairieDogHalf.com for more information on this event: http://prairiedoghalf.com/summer.html  

    • 5K

    Westminster, CO

    6.92 miles away

    I'm Attending

    Six Pack Summer Series Westminster- 5k & 10k

    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...

    • 5K

    Estes Park, CO

    44.67 miles away

    I'm Attending

    Rocky Mountain Half Marathon & 5K

    Join us for a weekend of running and scenic mountain views in historic Estes Park, Colorado just outside Rocky Mountain National Park.  Race Dates:5K - July 29, 2022Half Marathon - July 30, 2022 Run one race or register for the Elk Double and ru...

    • 5K

    Golden, CO

    14.41 miles away

    I'm Attending

    Spirit of the West 5K Run/Walk

    Congratulations to all of our 2021 athletes, and thank you for participating in our inaugural year.  Please join us for the 2022 Spirit of the West 5K and Family Fun Dash on July 31, 2022.

    • 5K

    Highlands Ranch, CO

    22.89 miles away

    I'm Attending

    Unicorn 5k (South)

    Ready to get off the sofa and gallop around Highlands Ranch with some friends?  Yeah, you are!  Come frolic with us at the Unicorn Runner 5k in Highlands Ranch to finish off your summer!  You'll earn a sweet tee shirt and a flashy unicorn finisher...

    • 5K

    Denver, CO

    33.02 miles away

    I'm Attending

    Summer Sizzler- Denver

    Like Running or Summer?  Love Beach Parties?  This race is for you!  Join us on August 6th, 2022 for an exciting new event that features the amazing scenery of TBA!  Whether you are looking to run, walk or just enjoy the race SWAG this race is a ...

    • 5K

    Centennial, CO

    19.79 miles away

    I'm Attending

    Arapahoe Warrior 5K

    Come out and support the Arapahoe Warrior Cross Country team at the 2nd Arapahoe Warrior 5K. $10.00 of every registration goes directly back to the Arapahoe Cross Country Booster team.  Register by July 25, 2021, to receive a t-shirt. Shirts are ...

    • 5K

    Loveland, CO

    38.72 miles away

    I'm Attending

    Valley 5000

    With over 300 runners expected and even more spectators, this will be an amazing year for the 39th Valley 5000, hosted by Sweetheart City Racing. This run/walk is scheduled to begin in Mehaffey Park on August 26, 2022. We are proud to support Hous...

    • 5K

    Conifer, CO

    30.4 miles away

    I'm Attending

    Conifer Climb

    A challenging but rewarding climb from the town of Conifer through the windy roads of the Hilldale Pines Neighborhood and back.

    • 5K

    Denver, CO

    8.64 miles away

    I'm Attending

    Fall Finish- Denver

    Like Running or Walking?  Love Smore's?  This race is for you!  Join us for an exciting new event that features amazing scenery, landscape, and great times!  Whether you are looking to run, walk or just enjoy the race SWAG this race is a sure thi...

    • 5K

    Longmont, CO

    22.21 miles away

    I'm Attending

    American Heroes Run

    The tragic events of 9/11/01 changed our nation forever. Let us not forget our proud history and those who fight everyday to keep us free. Please join us for this special day on this beautiful, flat, fast 1.05-mile loop course. The 100-mile race c...

    • 5K

    Littleton, CO

    22.23 miles away

    I'm Attending

    HRCA Oktoberfest 5K

    Put on your lederhosen and your running/walking shoes and join us as we kick-start the annual Highlands Ranch Community Association's Oktoberfest event in Town Center with the Oktoberfest 5K!  The HRCA Oktoberfest 5K course is a mixture of both s...

    • 5K

    Windsor, CO

    40.82 miles away

    I'm Attending

    Windsor Marathon, Half Marathon, 10K & 5K

    Welcome to the second annual Windsor CO Race! This year's event will start and end at The Island at Pelican Lakes in Water Valley, with a great after party including beer, food, music and a live band! New to the series is a Full Marathon distance,...

    • 5K

    Lakewood, CO

    18.38 miles away

    I'm Attending

    The Great Trailhead Foot Race 10 Miler & 5k

    Welcome to the Great Trailhead Foot Race at Bear Creek Lake Park!  Featuring legitimate TRAILS in the shadow of Denver's skyline, you'll love the single-track and dirt as you race 10 miles to the finish line party!  Don't quite have 10 miles in ya...

    • 5K

    Denver, CO

    8.66 miles away

    I'm Attending

    City Park 5k

    Get ready for the winter season while enjoying a race with your friends at the City Park 5k!  

    • 5K

    Denver, CO

    8.87 miles away

    I'm Attending

    Santa's Dash for Ca$h

    Choose your distance or run them BOTH!  The Santa's Dash for Cash 1 Mile(ish) event is a celebration of Slo-Hi/Denver and EVERY finisher in the 1 Mile(ish) Dash for Ca$h will receive a BONUS gift envelope! Some of the gift envelopes contain CA$H -...

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