Ugly Sweater 5K
- Date
- December 20, 2026
- Location
- Washington Park, Denver, CO
- Distance
- 5K · Virtual 5K
From the Organizer
Get into the holiday spirit with the Ugly Sweater 5K! Runners and walkers, young and old, are invited to join us at Washington Park in Denver for a flat, fast 5K. Dress in a tacky sweater – the more tinsel, bows, reindeer and candy canes, the better. It’s not a fashion faux pas if you’re supposed to wear it! All finishers will get an ugly sweater race medal, a themed shirt and a finish line expo with vendors, food and cookies.
Events
Weather
Typical Conditions
It's too far out for a forecast, so here's what weather on this date is normally like in the area. A race day forecast will replace this as race week approaches.
Typical High
46°
Typical Low
20°
Chance of Rain
13%
Based on US Climate Normals data from Denver Water Dept, 2 mi from the venue.
Host City
About Denver, CO
Population
713,734
as of 2023
Elevation
5,286 ft
Nearest Airport
DEN
Denver International Airport · 18 mi
Time Zone
Mountain Time
From Endurance Grid
A big city race. Expect multiple lodging options and plenty to do the day before.
Race Location
Your Next Start Line
What Are You
Waiting For?
Every finish line starts with a single decision. Claim your spot at Ugly Sweater 5K, put it on the calendar, and turn “someday” into a start date.
Coming Up
More Running races near Denver, CO
Juneteenth Fun Run 5K
5K
Less than a mile away
Denver Pride 5K
5K
Less than a mile away
Cookie Chase
Less than a mile away
DRMABPsi 1–5K Walk, Run & Roll
5K
Less than a mile away
From Endurance Grid
About This Sport
Endurance Grid is here to help you understand the sport, decide if it's the right fit, and learn how to prepare. For course distances, logistics, and race-day specifics, always defer to the race organizer's event page.
With running, there's a distance for every fitness level, a community at every start line, and nothing beats the feeling of crossing a finish line you trained for.
Running is an endurance sport that rewards consistency, and showing up every week compounds in ways that will surprise you.
Running
From 5K to marathon, running races are the most accessible entry point into endurance sport. There's a distance for every fitness level and a community at every start line.
Frequently Asked Questions (FAQs)
- What is the Ugly Sweater 5K?
- Ugly Sweater 5K is a running race held in Denver, Colorado on December 20, 2026. It is one of the many endurance events listed on Endurance Grid, a multi-sport endurance event calendar covering running races, triathlons, HYROX, and more endurance sports across the United States. Find more running races near you or explore our sports guides to learn what race day actually feels like.
- When and where is the Ugly Sweater 5K?
- Sunday, December 20, 2026 in Denver, Colorado at Washington Park, Denver, CO. Check the event page for exact start times and wave schedules.
- How do I register for the Ugly Sweater 5K?
- Registration is handled through the event's registration page. Confirm pricing and distances there, and sign up.
Ugly Sweater 5K
Dec 20, 2026