Event details subject to change. Please confirm all information via event website.
Rock Canyon Half Marathon
It is exciting to bring you another exquisite day of racing alongside the scenic Arkansas River! This is a fast course that starts in Pueblo's City Park and takes you around the zoo just for starters. Then you drop down to the gorgeous rivertrail, where you will be encompassed with nonstop gorgeous terrain and scenery. […]
Chase the Glow 5K
Come experience the Estes Park lights at this family friendly Christmas run/walk. Participants will follow a paved 4 mile route through all of Estes Park's amazing holiday light displays finishing in Bond Park surrounded by the Christmas village. Stay warm and cozy after the run with hot chocolate and Christmas cookies made locally.
Canceled Santa Stampede 5K/10K/Half Marathon
Join us for a Christmas Classic! The Santa Stampede 5K/10K/Half Marathon is a flat and fast race held along the banks of the scenic South Platte River in Littleton, Colorado. The holidays can be stressful, so why not keep the stress away with a family friendly run and walk.
Santa Shuffle 5K
HO HO HO! Let's kick off the holiday season with our Santa Shuffle at Fleet Feet Littleton! Join us for a family friendly Santa-themed 5K around Clement Park. New Balance is joining us with demo shoes, raffle prizes, and MORE! This year's event will feature a new 5K course, vendor village, several food trucks to […]
YMCA Jingle Jog
Get ready for the Annual Jingle Jog 5K and Kids' Reindeer Romp as we take on the fun and festive course at the Fountain Creek Regional Park! We are excited to announce that the Jingle Jog will utilize the 5K cross-country at the Fountain-Fort Carson High School.The event's growth has led us to look for […]
Santa Claus Run
A festive Celebration with Santa, Trail Running and plenty of Cookies and Music to get you in the Holiday Spirit. This 5k and 10k Trail Race is in Louisville and with Blowup Balloons and Christmas decorations makes for a holiday extravaganza. A selfie wall with a visit from SANTA CLAUS finishes off the day. We […]
Main Street Kids Run
Join us for the Annual Main Street Mile Kids Run, hosted by Shoes & Brews and the Longmont Downtown Development Authority (LDDA). This merry mile (just about one mile total) is open to all ages, all abilities, and all levels of holiday spirit! Before the Longmont Lights Parade takes over downtown, enjoy a rare moment […]
Summit For Life
Join the Summit for Life on December 4th. In this exciting event, participants race from the base of Aspen Mountain all the way to the top! Racers will climb 3,267 vertical feet, over the course of 2.5 miles—at night! Dinner will be provided by The Little Nell at the summit.
Ugly Sweater Fun Run
Grab your best and ugliest holiday sweater and join the Vail Recreation District for a fun-filled morning run through Vail Village on December 11th.
Candy Cane Chase
Now in it's 5th Year...we will have 2 now courses at the Creek Oath and Westminster Park is finished! We get the same families coming back year after year, Celebrating the upcoming Holiday Season. Collecting the different Mugs each year.... This years mugs will be made of Glass. and the Finisher Medal TURNS INTO A […]
Ugly Sweaty Sweater 5K
Grab your ugliest sweater, running shoes, some friends and family, and come on out for the Ugly Sweaty Sweater 5k Fun Run/Walk. This family and dog friendly event starts at 10am at the PLPOA Rec Center located at 45 Eagle's Loft Cir, Pagosa Springs, CO 81147. The course is a gentle loop that follows bike […]
Ugly Sweater Run
Fruita Tavern 153 N Mulberry St., Fruita, CO, United StatesWear your most festive or ugliest holiday gear and get ready for some magical winter fun! After a social 5k fun run enjoy seasonal brews, hot chocolate, music and a big ugly sweater contest benefiting Girls on the Run Western Colorado.
Run Like a Reindeer 5K
Get ready to lace up your running shoes or Nordic boots and snowshoe, cross country ski, fat bike, or walk with snow cleats on the Fraser River Trail to the Rendezvous Event Center in Downtown Winter Park. Embrace the magic of the season as you race against friends, family, and fellow holiday enthusiasts. Participants are […]
Hot Chocolate 5K
Warm up your taste buds because you’re invited to the very first Hot Chocolate 5k Run! Come run your personal record and enjoy some post-race treats. This race is the perfect way to end 2025! Cross the finish line to a sweet reward of rich and delicious hot chocolate.
Resolution Run 5K
Run out the old year, and welcome the new! Now in its 42nd year, the Resolution Run is a family-friendly, neighborhood streets 5K starting & finishing at the Edora Pool Ice Center. Kids, strollers, dogs & walkers welcome! Finish in under 20:26 to earn a special prize! The race is held after sunset – we’ll […]
FAR Resolution Run
Does your new year's resolution involve being active? Setting healthy goals? Engaging with your community? Come start the year off right by joining Fremont Adventure Recreation for their third annual Resolution Run on the first day of the new year - January 1, 2022!
Rescue Run
Welcome back to Norris-Penrose Events Center / Bear Creek Park! Back in the beginning... The Rescue Run Start/Finish was at Norris-Penrose Events Center - After many wonderful years at Palmer Park we are returning back to our roots! But rather than run on the streets, as we did then, we will be running on the […]
Resolute Runner 5K
The Resolute Runner 5K is the KICK OFF PARTY OF THE YEAR! It's time to be RESOLUTE, to retroactively earn your pumpkin pie and chocolate truffles, and to start the new year on the right foot, literally! The course starts at Johnny Roberts Memorial Park in Arvada, CO, and winds through the beautiful Ralston Creek […]
New Year’s Day 5K
The New Year's Day 5k is a great way to kick off the new year! The event is a fun local tradition. We encourage costumes, and all people of all speeds and ability levels are welcome. This year, we've added an event timer with online registration to streamline the results and registration process. Your time […]
Resolution Run 5K
Ring in the New Year Durango-style! Lace up, layer up, and join the Resolution Run 5K for a refreshing start to 2026. This family- and pet-friendly event is perfect for anyone ready to move, laugh, and kick off new goals with a smile. Start your year surrounded by neighbors, mountain views, and a whole lot […]
All-Out Polar Prowl
From the heart of the West Metro area and the Stenger Soccer Complex, All-Out brings you Polar Prowl! Along with its Endless Series sidekick in June… Summer Breeze, these 5K, 10K and Half Marathon courses will follow Van Bibber Creek Trail west through Arvada's open spaces with spectacular views of the countryside and Table Mountain. Plus… all distances […]
Sentinel Flurry 5K
The Sentinel Flurry returns for the 2025-2026 School year! It will take place on January 10th, 2026. Participants can sign up for the 1 mile, 5K or the Combo. Combo participants will run both the 5K and the 1 Mile.
CMRA Frozen Platte 8K
The course will go north from there on the S. Platte trail, across the suspension bridge at the Big Dry Creek Trail, back south on the west side of the river, across the bridge near the Platt River Bar and Grill, south past the finish line, around the Lee Gulch roundabout, and back north to […]
Beaver Creek Uphill
Come ski, board, or run with us until the sun comes up on some of the best ski slopes in Colorado! Kicking off the Winter Races is the Beaver Creek *Skimo/Boardmo and Uphill with over 2,000 feet of vertical gain from the base of Centennial Lift to Spruce Saddle Lodge. Get those thighs and quads […]
Canceled Frosty’s Frozen Half Marathon, 10K and 5K
Frosty's Frozen Five & Ten is a flat and fast half marathon, 10K and 5K held each January in Littleton Colorado. The race starts and finishes at Hudson Gardens and the course travels the paved Platte River Trail.
Trail Apples 4 Mile
We host one race per month from November to March. All races are at Chatfield State Park and start at 9:00 am on Saturday mornings. Check-in starts at 8:15 am.
Almageddon Winter Triathlon
Take on the ultimate winter endurance challenge at 10,653 feet in Alma, Colorado, the highest incorporated town in North America. The ALMAGEDDON Winter Triathlon combines fat biking, Nordic skiing, and snowshoeing across rugged mountain terrain with breathtaking views of the Mosquito Range. This unique event is part of the Race in the Clouds series, benefiting […]
Colorado Cold Rush 5K/10K
Baby, it's cold outside... And we're gonna take it on, because that's what living in Colorado is all about. Let's conquer the elements together at this WINTERY January 5k/10k race. We're staying cool in Colorado, one mile at a time! Starting at Louisville's Coal Creek Golf Course and running through neighborhoods, past fairways and along […]
Chilly Willy Half Marathon
It's winter time & it's cold, but don't hibernate! Keep moving because it's a great time to go for a run whether you join us live or run virtual! We're racing the trails Cottonwood Creek Park. All the races start at 8:30 am, with Finisher Medals for everyone! Only 200 finisher medals will be ordered […]
Rio Frio 5K
The Annual Rio Frio 5K on Ice is one of America’s most unique 5k races! This spectacular event is conducted entirely on the majestic frozen Rio Grande! Have you ever run on a frozen river? Come and try it out on January 29th in Alamosa.
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