Spring Fling Prairie Dog Half, 10k, & 5k

Welcome to the SPRING FLING Prairie Dog Half, part of the Prairie Dog Half Race Series. This spring-time event also features 10k & 5k distances!

If you're looking for race day info (including, schedule, course, packet pick up, etc) navigate to the menu under "race info" at the top! 

Date: April 10, 2026
Time: 4 - 7 PM

Location: Road Runner Sports- Westminster
Address: 10442 Town Center Dr, Ste 300, Westminster, CO 80021

It's not a secret, we WANT you to come to Advanced Packet Pick Up! This helps keep lines and crowds down on race day! 
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Come ready with your QR Code (sent to you via email the day before packet pick up)! 

This is the only date for ADVANCED packet pick up.  You are welcome to send a friend or family member to pick up your packet for you.

Bring your bib and ID to Colorado Tap House after the race! They open at 8:30AM.

Your race bib gets you a BOGO (Buy One Get One) deal on any beverage item (discount applied to the lesser value item) at the Colorado tap House.

14982 WEST 69TH AVENUE, ARVADA, CO, 80007

Start, Finish & Expo:

START & FINISH
14982 W 69th Ave, Arvada, CO 80007 (Colorado Tap House)

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PARKING:

You can park in the grass field/lot at 6800 Joyce Street and along the streets. Please do NOT park at the Colorado Tap House lot, as it should be available for specific Tap House staff and guests.

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Support:

-Port-a-Johns will be at the Expo (start/finish) and at approximately miles 3.2 and 12.2 on the course.  (5k miles .9 and 2.2 / 10k miles .9 and 5.3)
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-5k course will not have any water station.

-10k runners will encounter two aid stations for a total of FOUR passes.  They are at approximately miles 2, 2.9, 3.3 and 4.2.

-Half Marathon runners will pass water stations FIVE times at approximately miles 2.5, 4.5, 7.6, 10.2, & 11 with water and Gatorade.  GELS will be available by request at the southernmost aid station approximately miles 7.6 and 10.2

-All distances contain OUT and BACK sections, which means runners need to stay to the right to avoid oncoming racers. 

*The 1/2 marathon course support and timing will be open for 3:30:00.  Racers must average at least 16 minutes per mile to remain on the course and receive course support.

Dogs and Strollers:
-Dogs are welcome at the Spring race. We do ask that you keep dogs on a short leash and you start near the back or off to the side.

-Strollers are welcome at the Spring race. We do ask that you start near the back or off to the side. The half marathon course DOES have some tricky spots that strollers might struggle with. A specific jogging stroller would be recommended for the half. Traditional strollers would be fine for the 10k or 5k.

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Course Surface

The course is primarily on a concrete trail with a little bit of hard-packed dirt (about a mile) around the lake.

CLICK on the following for links to the course on MapMyRun.com

5k

10k

13.1

May:  Half Marathon: $60 / 10k: $35 / 5k: $25
June - August:  Half Marathon: $70 / 10k: $40 / 5k: $30
September - March:  Half Marathon: $75 / 10k: $45 / 5k: $35
April 1 - Evening before race @ 4 PM:  Half Marathon: $80 / 10k: $50 / 5k: $40
​Race Day:  Half Marathon: $90 / 10k: $60 / 5k: $50

(fees above to not include the processing fee you see on the home page)

Registration fees are non-refundable.

GROUPS: 
Join a TEAM during registration, and when your group reaches 5 or more members in the 5k, 10k or Half Marathon events, everyone gets $5 off!  (See FAQ for details.)  Discounts are honored ONLINE only in advance of race day.

Want to win some cool stuff including 3W Races vouchers, gift cards, and gear from our sponsors?  Bring 5 or more items to donate to Community Table on race day and you'll be entered into the exclusive race day raffle!! Drop off items before you run at the charity table near the 3W Race's tent in the expo. After you race, view the RAFFLE board at the registration tent to see if your bib number was pulled for a prize!

Here's what you can donate! Community Table can always use personal care / hygiene products and:
Directly from Community Table: "As for needed items, we are low on our miscellaneous items! AKA baking supplies (flour, sugar, oil, baking powder), condiments, dressings, seasonings, and similar items that wouldn’t fit into a food category such as protein, veggies, fruit, dairy etc."

7:00 - AM: Same day registration and late packet pick up opens
7:30 - 11:30 AM: Expo Open
8:00 AM: Half Marathon Start
8:30 AM: 10k and 5k Start
9:15 AM: 5k Awards
9:45 AM: 10k Awards and overall Half Marathon Awards
10:15 AM: Half Marathon Age Group Awards 
11:30 AM: Finish Line Closes

We’re excited to announce that we’ve partnered with Sneakers4Good to provide you with a socially responsible way to donate your gently worn, used or new sneakers and running shoes to a good cause we support! The sneakers will help benefit Growing Home as well as give a hand up, not a handout, to micro-enterprises in 25 developing countries. The athletic shoes will be kept out of landfills where they can take decades to fully decompose. Visit Sneakers4Good to learn more!

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It's super simple! All you need to do is bring your lightly worn athletic shoes and sneakers to the race (either race day or at packet pick up). We collect them and mail them and a donation is made to Growing Home! 

Please donate only gently worn, used, and new athletic shoes.  These sneakers, trainers, and other athletic shoes will be worn again by people in developing nations, so please make sure there are no holes or soles falling off and that they are in wearable condition.  Dress shoes, sandals, brown shoes, flip flops, cleats, etc. and other shoes that are NOT athletic shoes will NOT be accepted. 

Please tie your shoes together or put a rubber band around the pair! 

Each 1/2 Marathon finisher will receive a custom Peedy the Prairie Dog finisher's medal.

All participants will receive a Tech T-Shirt (style/color varies) and a Pint Glass!

**Available shirt sizes are listed during registration.  In the final few days before the event, some sizes will sell out.  Not all sizes may be available for same day registration.  Visit the 3W Races table at the Expo after 8:30 AM for shirt exchange if you are interested in trading out the size you ordered for a different size!

Men's Sizing:

Women's Sizing:

The top three men and women of each distance (based on gun time) and top three men and women in each age group (based on chip time) are recognized! 

Awards will be given to the top three men and women overall and in each age group for each distance.
Must be present to claim awards/prizes. 
Awards will NOT be mailed.

Age groups: 
10k and Half Marathon:  19 and Under, 20-29, 30-39, 40-49, 50-59, 60-69, 70-79, 80+
5k:  0-9, 10-14, 15-19, 20-29, 30-39, 40-49, 50-59, 60-69, 70-79, 80+

RESULTS are posted LIVE during the event!

The Start/Finish and Expo are located:

Colorado Tap House
14982 W 69th Ave, Arvada, CO 80007

Parking may be limited, so please CARPOOL as you are able!

Each Registrant:
- Race Day Shirt 
- Finisher's Pint Glass
- Chip Time
- FREE Photo Downloads
- Free GPS Tracking for friends and family
*Those in the HALF MARATHON package receive a Finisher's Medal 

A Gender-Specific Short-Sleeved Tee Shirt is offered for ALL distance participants.
**Available shirt sizes are listed during registration.  In the final few days before the event, some sizes will sell out.  Not all sizes may be available for same-day registration.  Visit the 3W Races table at the Expo after 8:30 AM for shirt exchange if you are interested in trading out the size you ordered for a different size!

Join us in support of Community Table, serving the Arvada Community since 1982!

"Empowering our community by providing the tools to lift people from poverty."

This event features a food drive for Community Table.  You can care for your neighbors without making a special trip! See our RAFFLE Page for more info!

We are proud to partner with Sneakers4Good! When you donate your gently used or new athletic shoes at the Spring Fling Prairie Dog race, a donation is made to our other charity partner, Growing Home! 

Bring your shoes on Race day and drop them off in the box near the registration tent! Click here for more info and "dos" & "donts"!