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Final Endless Series Logo As a part of our first-of-its-kind Endless Series, race the same distance at back-to-back events to measure your progress on identical 5K, 10K or Half Marathon courses.  Prizes may be awarded to those who beat their previous time!  Click here for more information.
New Virtual Race Graphic2 With about a gazillion reasons why you might not be able to join us on race day, we know you still want to race with your friends & family. Well, we’ve got your back! Space will be extremely limited, so get in early if you want to race from afar for any reason.  Click here for more information.

Get ready for some fun in the sun and a great mid-season test of your training and fitness as we bring our 3rd Annual Dog Days 5K, 10K & Half Marathon to Westminster’s award winning City Park!  Centrally located between Denver & Boulder, and just a mile off US 36, the beauty of our breathtaking Flatirons as a backdrop will remind you why you live here.  Plus, Big Dry Creek Trail is well known as a Colorado favorite!

    • 5K, 10K & Half Marathon Distances
    • USATF Sanctioned & RRCA Certified Direction for your safety
    • Early AND Race Day Packet Pick-Up
    • GEAR CHECK!!  No trips back to the car for our athletes… no sir-ee!
    • Accurately measured, clearly marked, ‘no-brainer’ courses
    • More Aid Stations than you might even think are necessary
    • Porta-Poos-A-Plenty!
    • Start / Finish and On-Course Medical Support
    • Reliable, Accurate, Disposable Chip Timing
    • Same day searchable & sortable results online
    • Finish Aid for immediate rehydration & electrolyte replacement
    • FREE Post-Race Meal including Fruit, Bagels, Breakfast Burritos and Chocolate Milk!
    • 3 Deep Overall and Division Awards
    • Winner & Raffle Prizes GALORE!
    • Sweet SWAG including:
      • Custom Race Bibs
      • Tech shirtssuper comfy, performance wicking & gender specific!
      • Distance Specific Finisher Medals for ALL distances!
      • Rally towelsdripping with ice water and ready to cool your core temp at the finish line!
      • Plus… FREE RACE PICS! That’s right… print ’em, post ’em & share ’em all day long cuz unlimited downloads are on us.

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Dedicated in support of Colorado Canine Rescue!

Rescuing ‘next-in-line’ dogs of all breeds from overcrowded shelters, Dog Days is presented in support of the Colorado Canine Rescue. Run entirely by volunteers, and with no central location… only foster homes, please consider a generous donation when you register!

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Web Section Titles- Official Lodging Sponsor

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Only about a 1/2 mile from the race start / finish, enjoy a relaxing night’s sleep at The Westin Westminster!
With their spacious guest rooms, spectacular views, and signature Heavenly® Beds, you’ll be all set to go All-Out on race day!

Reserve your room by July 10th to get their very special rate of just $109!

Call 888.627.8448 to tell them you qualify for our Dog Days Courtesy Room Block, or click below to reserve online.

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Site Map Directions Printable PDF

City Park: 10455 Sheridan Blvd, Westminster, CO 80020

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With you and about 1,000 of your closest friends all joining us on race day, parking could get a bit hairy.
Please be sure to scroll to ‘Event Information’ for deets and please plan to park in approved lots only.



5K Course  (13% Asphalt / 87% Concrete) Interactive Map Printable PDF
5K athletes will leave the lot at City Park heading southwest on Big Dry Creek Trail. As an out-and-back course, athletes will run approximately 1.5 miles to the turnaround then return the way they came.
Course Records: M 15:51.08 / 5:07 Pace (Nick Kadlec) – F 22:14.05 / 7:10 Pace (Alicia Caldwell)


10K Course  (6% Asphalt / 83% Concrete / 11% Soft Surface) Interactive Map Printable PDF
10K athletes will leave the lot at City Park heading southwest on Big Dry Creek Trail. As a double out-and-back course, athletes will run approximately 1.5 miles to the 1st turnaround then return the way they came, passing City Park to run another 1.5 miles to the 2nd turnaround, before returning directly to the finish line.
Course Records: M 34:49.04 / 5:37 Pace (Omar Martinez) – F 42:06 / 6:48 Pace (Dawn Scott)


Half Marathon Course  (3% Asphalt / 48% Concrete / 49% Soft Surface) Interactive Map Printable PDF
Half marathon athletes will leave the lot at City Park heading southwest on Big Dry Creek Trail. As a double out-and-back course, athletes will run approximately 1.5 miles to the 1st turnaround then return the way they came, passing City Park to run another 5 miles to the 2nd turnaround before returning directly to the finish line.
Course Records: M 1:18:39 / 6:01 Pace (Ryan Krol) – F 1:33:00 / 7:06 Pace (Andrea Holt)


Early (thru 5/25) Advance (thru 7/11) Late* (thru 7/22) Walk-Up*
5K $35 $40 $45* $50*
10K $40 $45 $50* $55*
Half $55 $60 $65* $70*

*Because goodies must be ordered far enough in advance to have them printed & shipped, late and walk-up entrants will receive SWAG on a first come, first-served basis. If the shirt size you prefer is unavailable when you register, please select your next best size to be sure you get one, then stop by the packet pick-up area after you race to see if a swap is possible.


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Without YOU, these events simply wouldn’t be possible.

From event prep to packet pick-up, and from course marshals to meal service, there are a variety of ways you can help. Sure… when you volunteer, you can look forward to that warm & fuzzy feeling that comes by giving back, but with All-Out, there’s WAY more to it than that. There’s no experience necessary, but space is limited so please let us know you’re available right away! Athletes: We know endurance sports can take a big chunk out of your pocket book and we’ve got your back. Check out our ‘Earn a Free Entry’ program! Groups: Tired of those bake sales & car washes? We are happy to be a part of your fundraising efforts! (Donations begin with just 10 volunteers and you need not be an official nonprofit.) Students: Earn those credits in the most fun way possible!


Click the buttons above or ‘Volunteer Now’ below for more information, then brace yourself… you’re about to have a blast!

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Monday, 5/25 11:59p Early Pricing Ends
Saturday, 7/11 11:59p Advance Pricing Ends
Wednesday, 7/22 11:59p Late Pricing Ends & Online Registration Closes
Thursday, 7/23 4:00 – 7:00 p.m. Early Packet Pick-Up & Walk-Up Registration (photo ID required):
RRS-Logo Road Runner Sports: 10436 Town Center Dr, Westminster
Click here for a map or to get directions.
You do NOT want to wait until race morning to pick up your packet! Why? You’ll miss out on the chance to win one of several SWEET prizes being given out only at Early Packet Pick-Up. (Psst… winning at packet pick-up will not reduce your chances of winning again on race day.)
Saturday, 7/25 5:00a Venue Volunteer Check-In
  5:30a Course Volunteer Check-In
5:30a Race Day Packet Pick-Up & Walk-Up Registration Open
6:30a Half Marathon Warm-Up Begins (optional)
6:45a Half Marathon Walk-Up Registration Closes
7:00a Half Marathon Start
7:15a 5 & 10K Warm-Up Begins (optional)
7:30a 5 & 10K Walk-Up Registration Closes
7:45a 10K Start
7:50a 5K Start
8:45a 5K Awards & Raffle
9:15a 10K Awards & Raffle
10:00a Half Marathon Awards & Raffle

Directions – Westminster’s City Park is located at 10455 Sheridan Blvd.  Click here for a map or to get directions.

Parking – Athletes & spectators will be allowed to park in the lots indicated as ‘A’, ‘B’ and ‘C’ below only, leaving other lots available for park maintenance staff and the softball tournaments scheduled for the same morning.

Parking Map

Towels – It’s gonna be HOT!  As great as the ice water dripping from your finish line towel will feel, please DO NOT return to the finish aid tent to re-dip your towel once it starts to dry.  (Think about that for a minute… Ewww!)


The above information is only that which is unique to this event.

Please click here to review other general but important details and AMP Company Policies.