Event details subject to change. Please confirm all information via event website.
PPRR Nielson Challenge
North Monument Valley Park 1794 Culebra Ave., Colorado Springs, CO, United StatesRace Format The first time you run this event, you'll establish a base time for yourself. This base time is used to generate a handicap time. The handicap time is […]
Thumbs Up Vertical Challenge
Rules Beginning at 8am, runners will ascend the Thumb Open Space out and back trail, each lap is 2km with 540ft of vertical gain At the turnaround runners collect 1 […]
Sweaty Sweater 5K
Foothills Mall 215 E. Foothills Parkway, Fort Collins, CO, United States5k Run/Walk – 9:00 am Kid’s 1-Mile – 10:00 am Calling all Ugly Sweaters… We want to see your most hideous, outrageous, bulky and unforgettable UGLY sweater running the Sweaty […]
Chasing Santa 5K
Celebrate Christmas with a 5k Run/Walk. This holiday event is designed for the whole family. Instead of your race day "T" shirt, you will receive a complete Santa Suit, Pants, […]
Catfish Flats
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.
Jingle Jog 5K
Jingle Jog is a fun run event to support Mountain Tots fundraising goals. The event will include a 1K kids fun run and 5K route option for participants. Starting in […]
Race Of The Santas 1M
Start the winter festivities in Breckenridge by lacing up your running shoes for the RACE OF THE SANTAS! The race kicks off on Main Street directly in front of the Canteen Tap House (208 […]
Tortoise & Hare 6K
Spring Park 2100 Matthews St, Fort Collins, CO, United StatesThe Tortoise & Hare (T&H) is a low-key “handicap” series of seven races that are run monthly from October to April, typically on the first or second Sunday of the […]
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 […]
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 […]
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. […]
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 […]
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 […]
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 […]
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) […]
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 […]
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 […]
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 […]
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 […]
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 […]
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 […]
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 […]
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’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 […]
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 […]
RMRR Platte River Trailhead Park 5K/10K
Platte River Trailhead Park Colorado Blvd and E 88th Ave, Thornton, CO, United StatesEveryone – slow, fast, or in-between – can win at RMRR Trophy Series races. With our handicap scoring system, we predict YOUR finish time based on recent running results, giving you a great […]
COPS 5K
Colorado State Patrol Track 2054 Quaker Street, Golden, CO, United StatesThe Colorado Outdoor Pace Series ("C.O.P.S.") is a unique set of races presented by Golden Mountain Runners and Golden Endurance. Race Dates January 7, 2026 - 5K January 21, 2026 […]
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