Event details subject to change. Please confirm all information via event website.
Sawmill Trail Runs
Weaving and rambling across the various rolling hills of Staunton State Park, the Sawmill Trail Runs serve as the ultimate test for December running. Runners will enjoy a single loop […]
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 […]
All-Out Fa La La
Dash through the snow (or not snow) at Fa La La! Along with its Endless Series sidekick in July… Dog Days, the majesty of our breathtaking Flatirons as a backdrop will inspire […]
Toy Drop
Each race will run through a part of Loveland we haven’t highlighted until this race. Bring a new, unwrapped toy to the start line and be ready for the “drop”. […]
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, […]
Candy Cane Course 5K
Join us for the annual Candy Cane Course 5k/12k! A fun, Christmas-themed event that is perfect for the whole family. The fun includes - Great Swag - designer shirt & […]
Onesie Dash
Enjoy a scenic little dash in and around Red Feather Lakes, Colorado! Wear your favorite onesie (and layer it underneath if you need extra warmth!). Start at The Tavern at […]
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 […]
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.
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 […]
Candy Cane Course 5K
Join us for the annual Candy Cane Course 5k/12k! A fun, Christmas-themed event that is perfect for the whole family. The fun includes - Great Swag - designer shirt & […]
Rudolph Ramble 5K
Bad news...Rudolph has gone missing. Good news...Santa knows exactly who to call. The Denver running community! Lace up your running (or walking) shoes and join the Rudolph Search & Rescue Team on […]
Santa Catch
Start your holiday season with the joy of running! Proceeds from this race benefit the nonprofit Adopt A Family- serving thousands of local families in need this holiday season. All […]
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 […]
CMRA Sand Creek 5M
Runners will compete over a 5 mile distance. runners and Race Walkers will compete over a 5 KM distance. The course will use the crushed gravel trails and single track […]
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 […]
Stocking Run 5K
Village Green Park - Superior 1 Superior Drive, Superior, CO, United StatesJoin us on Saturday December 13th for a fun and festive, family-friendly 5K run and walk in the town of Superior - conveniently located off Highway 36 between Denver and […]
Winterfest 5K
Kick off the holiday season with a spirited run/walk at Thornton's Carpenter Park. Choose from the chip-timed 5k, or experience the festive atmosphere in a shorter distance in our untimed […]
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 […]
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 […]
Santa’s Dash for Ca$h
Join 3W Races on December 18th at Sloan's Lake Park. Collect your prize envelope at the finish line for gift cards from local businesses and maybe even CA$H!
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 […]
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 […]
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 […]
Polar Bear 5K
You run faster when it's cold, right? Come Run for the 🥶Chill of it...all the "cool" runners are doing it! RACE HIGHLIGHTS 🛍️Participants get some super fantastic running socks! 📸FREE […]
Chilly Cheeks Winter Duathlon
Cherry Creek State Park 4201 S Parker Rd, Aurora, CO, United StatesThe Chilly Cheeks Duathlon Series is now a stand-alone event held in late February. The 63rd Chilly Cheeks Duathlon will be held in the traditional format of Run-Bike-Run. Both runs […]
Three Creeks Half Marathon
Racing Underground brings you an amazing half marathon this spring! The Three Creeks Half Marathon features a half marathon course that is flat, fast and scenic! Travel on foot through […]
Platte River Half Marathon
Denver's oldest half marathon runs along the Platte River Trail, covering parts of Littleton and Denver.
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