RexRun For PAWSitivity 2026 Trail Run/Walk

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Arapahoe County Fairgrounds, Aurora CO

Saturday, August 29th, 2026

Event Overview

Date and Time: August 29, 2026, starting at 7:00 am.
Location: Arapahoe County Fairgrounds, Aurora, CO.
Schedule: Family 5K run/walk at 7:50 am, followed by the 5K trail run at 8:00 am.
Post-event: Enjoy a complimentary pancake breakfast for all registered participants.

Activities and Attractions

Kids Zone: Featuring inflatable activities, lawn games, and face painting.
Vendor Marketplace: Explore giveaways and pet consultations.
Dog Policy: Dogs are allowed in the event area on a 6-foot leash.
Demonstrations: Watch therapy and patrol dog training events throughout the day.

About K-9 Rex

The star of our event is K-9 Rex, a four-year-old black Labrador therapy dog. He and his fellow K-9s with their handlers go to local schools to primarily offer comfort to students with special needs, many who are in crisis and are dealing with stress, anxiety, and depression. RexRun for PAWSitivity 2026 is presented by Back The Blue K-9 Force, a volunteer-run nonprofit organization. It is dedicated to providing funding for safety and training equipment, health care needs as well as expanding the team of K-9s to meet the needs of these communities. 100% of all net profits from RexRun for PAWSitivity 2026 go to Back the Blue K-9 Force.

To learn more about the mission of Back The Blue K-9 Force and how your support benefits the K-9s, go to: Back The Blue K-9 Force.com.

Race Registration

5K Trail Run: Starts at 8:00 am.
5K Trail Walk: Starts at 8:10 am (dogs welcome!).
Kids 1-mile Trail Run/Walk: Starts at 8:45 am.
Registration Fees: Vary based on the registration date: see below for details.

Pricing Schedule

March 1st - June 30th: $45 + processing fee.
July 6th - Day of Race: $50 + processing fee.

Special Offer

Every registered racer and volunteer qualify for a complimentary ticket with the purchase of an additional ticket to the rest of the games this season. To redeem, go to your confirmation page after registering for the race and click the link to this CO Rapids special. Choose your free ticket and buy any additional ones there! It's another way to show your support for RexRun! $5 of every ticket sold will go back to Rex Run!

Included in Your Registration

Commemorative T-shirt: RexRun for PAWSitivity 2026.
Goody Bag: Full of giveaways.
Finishers Medal: Every participant receives one.
Pancake Breakfast: Included for all registrants.

Fundraising Opportunities

Becoming a fundraiser isn’t required, but we’d love for you to join in! We’ve made it simple to start raising money with your personal fundraising page. You can write your own unique message or use the one we’ve created to share why this cause matters so much! Be a fundraiser!

Honorary K-9 Deputy

Do you have a loyal and honorable companion at home who dreams of being a Police Dog? Well, now they can! Right here at RexRun For PAWSitivity 2026, your K-9 companions at home can become Honorary K-9 Deputies, all for only $10! Sign your pup up and receive an honorary badge and commemorative personalized certificate, signed by Arapahoe County Sheriff Tyler Brown and K-9 Rex. Afterward, they will have the opportunity to be sworn in by the Sheriff for one year of honorary service. Click HERE to honor your pup!

Amazon Gift List

There are lots of ways to get involved in RexRun For PAWSitivity 2026! One fun way is to browse our Amazon gift list for our silent auction basket items. Just go to Amazon.com and SHOP, SHOP, SHOP. This is a fun and most needed way to provide for the K-9s!

Awards

Awards will be given to the top three male and female runners. The Award Ceremony will be held after the last runners cross the finish line.

Packet Pick-Up

Packet pick-up will be the day of the race at registration in the Main Hall, beginning at 7 am.

Safety Guidelines

All dogs must be on a 6-foot leash at all times: retractable leashes are not permitted. Owners are required to clean up after their pets, with several receptacles provided for convenience. Make sure your dog is well-behaved and does not interfere with other attendees. Participation with a stroller or dog is limited to the 5K walk and the children's one-mile run/walk only. Our event will host numerous law enforcement K-9 units with their handlers. It’s important to respect their space and make sure that neither children nor pets approach or attempt to touch them. Parents are responsible for preventing any potential injuries to their children or pets. Please observe and obey the rules established by law enforcement.

Rain or Shine

The event will be held rain or shine unless there are extreme weather conditions in the area at any time before or during the race. If this should occur, you will be directed to the safest area nearby by our law enforcement officers. This is a trail race. In case of a large amount of rain, the dirt trail will become unusable. Please stay alert if the weather becomes severe.