All-Out Dog Days

Event Overview

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!

Event Location

Held in a central location between Denver and Boulder, our courses wind northeast along the scenic Big Dry Creek Trail.

Course Highlights

• Scenic Views: Enjoy breathtaking views of the Flatirons on the horizon.
• Dog-Friendly Trails: The trail is perfect for dogs, featuring a generous amount of soft surface along the 10K and half marathon routes.
• Special Awards: We have a special dog division to award the fastest pups at each distance.
• Costume Contest: Join in the fun with a dog-themed costume contest!

Challenge Continuation

And continue the challenge by participating in the endless series counterpart, Fa La La, in December.

Event Details

Date: July 11, 2026

Location: 10170 Church Ranch Way, Westminster, CO

For more information and to register, visit: All-Out Dog Days.