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 calculated using an algorithm developed by Bob Royse, and it's geared to favor a beginning runner and the slower runners. Click here for an explanation of the […]
Thumbs Up Vertical Challenge
Thumb Open Space 101 Peak View Drive, Estes Park, CO, United StatesRules 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 poker chip to bring back to the start and deposit in their jar Turn around and climb again Uphill runners yield to downhill At 4pm, […]
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 Sweater Race. This is an event for everyone, whether you are walking with friends, running for an award or even prancing towards the finish line […]
All-Out Fa La La
Church Ranch Office Park 10170 Church Ranch Wy, Westminster, CO, United StatesDash 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 you every step of these 5K, 10K & Half Marathon courses along Big Dry Creek Trail… well known as a Colorado favorite. Bring your festive […]
Toy Drop
5030 Local by Berthoud Brewing Company 1480 Cascade Ave, Loveland, CO, United StatesEach 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”. You can pick which distance you want to run!
Chasing Santa 5K
First Tech Federal Credit Union 5725 Mark Dabling Blvd, Colorado Springs, CO, United StatesCelebrate 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, Jacket, Belt, Hat and of course a Beard, yours to keep.
Catfish Flats
Chatfield State Park 11500 N Roxborough Park Road, Littleton, CO, United StatesWe 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.
Ugly Sweater 5K
Left Hand Brewing Company 1265 Boston Avenue, Longmont, CO, United StatesJoin us for The Ugly Sweater 5k on December 6, 2025, for a 5k-ish, fun run event that starts and ends at this awesome taproom in Longmont. Run, walk, jog - whatever goes! Complete the course and celebrate with us and a FREE, local craft brew at the finish line. Wear your best ugly sweater […]
Jingle Jog 5K
Mountain Tots Pre-School 236 W 3rd St, Eagle, CO, United StatesJingle 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 historic downtown and the same day as Christmas on Broadway this race will be joy to all young and old and is a fantastic way […]
Onesie Dash
The Tavern at Red Feather Lakes 1078 Ramona Dr, Red Feather Lakes, CO, United StatesEnjoy 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 Red Feather Lakes and end back at The Tavern for a hot cocoa and s'mores bar and then we'll all walk into town (3 min […]
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