In 15 days · Sat, Aug 29, 2026
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Saturday, August 29th, 2026
Arapahoe County Fairgrounds, Aurora CO
5K · 1 Mile
59–83°F · low rain risk
See last 10 years
On this date: rain 1 of the last 10 years
2025
58–79°F
rain
2024
62–81°F
dry
2023
54–80°F
dry
2022
58–84°F
dry
2021
58–83°F
dry
2020
57–78°F
dry
2019
65–89°F
dry
2018
55–86°F
dry
2017
62–86°F
dry
2016
55–77°F
dry
Best months to race in Colorado →
About this race
Event Details
- Date: August 29, 2026
- Location: Arapahoe County Fairgrounds, Aurora, CO
- Start Time: 7:00 AM for Vendor Marketplace
- Website: RexRun For PAWSitivity
Race Schedule
- 7:50 AM: Family 5K Run/Walk begins with National Anthem
- 8:00 AM: 5K Trail Run starts
- 8:10 AM: 5K Walk (dogs welcome)
- 8:45 AM: Kids' Run
Post-Race Activities
- Pancake Breakfast: Free for all registered participants
- Dog Training Demos: Featuring therapy and patrol dogs
- Costume Contest: Colorful dog costume contest with a prize
- Auction: Participate in silent and live auctions
Kids Zone
- Inflatable Activities: Fun for all family members
- Lawn Games: Classic games to enjoy
- Face Painting: For children, along with snow cones
- Vendor Marketplace: Event giveaways and pet specialists
About 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 go to Back the Blue K-9 Force.
Registration Types
- 8:00 AM: 5K Trail Run
- 8:10 AM: Family 5K Trail Walk (dogs welcome)
- 8:45 AM: Kids 1-mile Trail Run/Walk
Pricing Schedule
- March 1 - June 30: $45 + processing fee
- July 6 - Day of Race: $50 + processing fee
Special Offers
Every registered racer and volunteer qualifies 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!
Breakfast Included
The Flippin' Flapjacks food truck is back, and their breakfasts are getting rave reviews! This tasty combo of pancakes, sausage, coffee, or juice is included with all runner, walker, and volunteer registrations. If you’re not registered for the run/walk, you can still purchase a meal at the pancake truck. They’ll be serving from 8:30 AM to 10:30 AM.
All Registrants Receive
- Commemorative T-shirt: RexRun for PAWSitivity 2026
- Goody Bag: Full of giveaways
- Finishers Medal: Acknowledging your achievement
- Pancake Breakfast: Included in registration
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? Right here at RexRun For PAWSitivity, your K-9 companions at home can become Honorary K-9 Deputies 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. Click HERE to honor your pup!
Amazon Gift List
There are lots of ways to get involved in RexRun For PAWSitivity! 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. We've made it so easy!
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 First
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.
Course map
Train with a club
Run clubs near Aurora to train with before race day.
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