WinterFest 5k & Fun Run
WinterFest 5k & Fun Run is a running race on December 12, 2026 in Thornton, CO, with an entry fee of $25.
- Date
- December 12, 2026 (142 days to go)
- Location
- 3498 E 112th Ave, Thornton, CO
- Price
- $25
- Sport
- Running
From the Organizer
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 Fun Run/Walk.
Stick around after for the festival, including Ice skating, Holiday Marketplace, Santa visits, and the Heated Beer Garden.
Celebrate the Best of Winter in Thornton, Colorado. You'll enjoy a warm drink at the finish line in your festive collectible mug.
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For details about this event, click on the menu options under "Race Info" or scroll to the very bottom of this page for links to other pages on this site.
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
47°
Typical Low
19°
Chance of Rain
13%
Based on US Climate Normals data from Northglenn, 3 mi from the venue.
Host City
About Thornton, CO
Population
142,878
as of 2023
City Elevation
5,347 ft
Nearest Airport
DEN
Denver International Airport · 16 mi
Time Zone
Mountain Time
From Endurance Grid
A mid-size host city. Enough lodging and amenities to keep race weekend easy, without big-city sprawl.
Race Location
Your Next Start Line
What Are You
Waiting For?
Every finish line starts with a single decision. Claim your spot at WinterFest 5k & Fun Run, put it on the calendar, and turn “someday” into a start date.
142
Days to train
- Race
- WinterFest 5k & Fun Run
- Date
- December 12, 2026
- Location
- 3498 E 112th Ave, Thornton, CO
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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 an accessible entry point into endurance sport. There's a distance for every fitness level and a community at every start line.
Coming Up
More Running races near Thornton, CO
Summer Sizzler- Denver
1 Mile · 5K · 10K · From $17 · Carpenter Park/Thornton Recreation Center Park
3 miles away
RMRR Fall Marathon Training Series
10 Mile · From $20 · Riverdale Ballfields in Thornton
3 miles away
RMRR September 5k/10k
5K · 10K · From $10 · 9830 Riverdale Road
2 miles away
RMRR Fall Marathon Training Series #2
From $20 · Riverdale Ballfields in Thornton
3 miles away
Plan your trip
Make it a Racecation
Coming from out of town? There's more to Thornton than race day. We'll help you line up nearby lodging, flights, a rental car, and things to do so you can make the most of your racecation.
Plan your trip to ThorntonFrequently Asked Questions (FAQs)
What is the WinterFest 5k & Fun Run?+
When and where is the WinterFest 5k & Fun Run?+
How do I register for the WinterFest 5k & Fun Run?+
WinterFest 5k & Fun Run
Dec 12, 2026