Westminster, Colorado · Saturday, August 15, 2026
The Westminster Trail Races is a 6k, 12k, 18k, 36k, 50k, trail running, and ultra event held on Saturday, August 15, 2026. It is located at 10020 100th Ave in Westminster, Colorado.
Get ready for a sun-soaked adventure and a fantastic mid-season challenge with our 13th Annual Dog Days 5K, 10K & Half Marathon, benefiting Do Over Dogs! Held in a central location between Denver and Boulder, our courses wind northeast along the scenic Big Dry Creek Trail. As you run, you’ll enjoy breathtaking views of the Flatirons on the horizon. Our trail is perfect for dogs, featuring a generous amount of soft surface along the 10K and half marathon routes. Plus, we have a special dog division to award the fastest pups at each distance and a dog-themed costume contest for extra fun! And continue the challenge by participating in the endless series counterpart, Fa La La, in December.
As the summer mornings start to cool, join us for a fantastic end-of-season celebration at our 14th annual Runapalooza! From our new venue at Colorado Tap House, you'll have the chance to tackle relatively gentle 5K and 10K courses that go along the acclaimed Ralston Creek Trail, taking you through shady, creekside beaty along Arvada's picturesque open spaces and charming golf course communities. Or our challenging half marathon course that combines the beauty of the Ralston Creek Trail with the challenging Blunn Reservoir loop with its gorgeous Denver and Front Range views. This event, paired with its Endless Series' counterpart Mardi Crawl, offers a can't-miss opportunity to experience the best of what Colorado has to offer!
One of Colorado's favorite trails meets one of its most glorious parks at our 9th annual Fallfest! As courses wind southwest along Big Dry Creek Trail, the remarkable sight of Standley Lake with the Flatirons on the horizon will come into view. Its Endless Series sidekick in September is Beat the Heat.
The race benefits THE United States Marine Corps Memorial dedicated "to all Marines for all time" to "Honor Marines and remember all who serve". Lives are changed when veterans visit the Memorial - learn more on the web site at Https://USMCMemorialFoundation.org Funds help maintain flags, lights, and what we have until funds can be raised to remodel the memorial.
Race Location:
Colorado Tap House
14982 W 69th Ave, Arvada, CO 80007
Parking:
There will be specific parking for the race - follow the signs
Course:
This is a very simple 5K and trail is well marked. There are a couple of streets to cross and guards will assist with that.
Walking and kids are welcome…
Awards
Top 3 male and top 3 female runners
Top 3 male and female in following age brackets: 20 & Under, 21-30, 31-40, 41-50, 51-60, 61 & Over
Those who finish the race receive a collectible dog tag as they cross the finish line from a veteran volunteer!
Ho-ho-hit the trail this holiday season at the 15th Annual Fa La La 5K, 10K & half marathon! This festive run/walk benefits A Precious Child and takes you on a scenic journey along the Big Dry Creek Trail with amazing Front Range views. Bring your furry friends (they'll love the soft surfaces!), your holiday spirit, and a gift donation. Don't miss our summer Dog Days event for another tail-wagging good time and to track your fitness progress in our endless series challenge!