WinterFest 5k & Fun Run

WinterFest 5k & Fun Run is a holiday running sporting event on Saturday, December 12, 2026, at Carpenter Park, 3498 E 112th Ave in Thornton. It is part of Thornton’s WinterFest celebration, which the organizer lists with ice skating, a holiday marketplace, visits with Santa and a heated beer garden.

There are two ways to take part. The 5K Run/Walk is chip timed with awards for competitive runners and starts at 10:15 AM. The Family Fun Run/Walk is an untimed course of about 0.75 miles for kids, families and anyone who wants a shorter route, and it starts at 10:10 AM. Runners chasing a personal best and walkers out with friends are both welcome.

Every 5K and Family Fun Run/Walk finisher receives the annual collectible WinterFest mug, a cobalt blue mug with custom 2026 WinterFest artwork. The 5K is an official BOLDERBoulder qualifier, and free GPS tracking is available through RaceJoy.

Entry is $45 for the 5K and $30 for the Fun Run/Walk, with all-in pricing and no extra fees. Register on the race’s RunSignup page.

Details are subject to change, so always confirm with the organizer before registering.

WinterFest 5k & Fun Run at a glance

WinterFest 5k & Fun Run is a run / walk event at Carpenter Park in Thornton, Colorado. It takes place Sat, Dec 12 at 10:10 am.

• When: Sat, Dec 12 · 10:10 am
• Where: Carpenter Park, Thornton
• Sport: Run / Walk
• Format: 5K
• Entry: $45

Find more like this: More Run / Walk events in Colorado · More 5K events · Events in Thornton · Other events at Carpenter Park