
All-Out Dog Days is a running race on July 10, 2027 in Westminster, CO, with entry fees from $55 to $85.
From the Organizer
Get ready for a fantastic mid-season challenge and a sun-soaked adventure at our 15th Annual Dog Days 5K, 10K, and half marathon, proudly benefiting Lifeline Puppy Rescue! Held in a central location convenient to both Denver and Boulder, our courses go along the scenic concrete-paved Big Dry Creek Trail as it winds northeast. You'll enjoy breathtaking views of the Flatirons on the horizon while you run.
This event is perfect for both human and dog athletes! The trail offers a generous amount of soft surface, especially along the 10K and half marathon routes, making it ideal for dogs. We celebrate our canine competitors with a separate dog division for each distance, where the first three finishing dogs will receive a medal, award, and prize. (Just remember to register your dog the morning of the event!) . For extra fun, join our dog-themed costume contest!
After conquering Dog Days, keep the challenge going by participating in the "endless series" counterpart, Fa La La, held in December.
Events
Weather
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
91°
Typical Low
59°
Chance of Rain
23%
Based on US Climate Normals data from Northglenn, 3 mi from the venue.
Host City
Population
115,546
as of 2023
City Elevation
5,551 ft
Nearest Airport
DEN
Denver International Airport · 19 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
Every finish line starts with a single decision. Claim your spot at All-Out Dog Days, put it on the calendar, and turn “someday” into a start date.
352
Days to train
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From Endurance Grid
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.
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
Jog in the Bog 5k
2 miles away
Pioneer Prairie Dog Half, 10k & 5k
Less than a mile away
All-Out Fall Fest
Less than a mile away
Runway 5K - Run for the Angels
2 miles away
Plan your trip
Coming from out of town? There's more to Westminster 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 WestminsterFrequently Asked Questions (FAQs)
All-Out Dog Days
Jul 10, 2027