the grand prismatic

A Yellowstone Race Series Event

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the grand prismatic

5K, 10K or Half Marathon

The Grand Prismatic in Yellowstone National Park is the largest hot spring in the United States. It is well-known for its bold colors and is located in the Midway Geyser Basin. The "boiling lake" gets its name from the rainbow sequence of colors and is one of the most photographed sights within the park. 

Choose your distance, join the private Facebook group and get started! Once you've completed your selected distance, report your time and we'll automatically ship your medal! (If purchased)

This is race 2 of 7 in the Yellowstone Race Series! 


  • Distance: 5K, 10K, or Half Marathon
  • Event Start Date: Whenever and wherever you want!
  • Specialized Race Merchandise: Commemorative Medal
  • Additional Information: View FAQs




Click "Register Now" to sign up for the challenge and select your swag! 

2. Get Moving!

Start working on your training for your race. Decide on the timeline that will work best for you and determine your race day. 

3. Go the Distance!

When it's your race day, complete the distance you registered for and celebrate your accomplishment!

4. Report Your Time

1. Visit the VRC webiste

2. Select "Report My Time" in the navigation. 

3. Follow the prompts to enter your time and complete your race!


what is the distance for the race?

Chose either a 5k, 10k or half marathon as your distance during registration! 

How long do I have to finish my race?

You can race whenever and wherever you feel like it! There is no deadline to complete your distance. We just ask that you have fun and feel accomplished once you've completed it. 

how do I report my mileage?

Click "Report My Time" in the menu on our site then follow the prompts. For more information, view the "How it Works" section. 

How will I receive my medal?

When you order a medal with your registration, you can select whether you'd like to receive it up front or report your race time first.

When will i receive my swag?

Those who registered by September 15 will receive their shirt/bib orders by October 8. Shirts and bibs have since sold out for this event.


All swag ships separately. Shirts and medals ship with a tracking email from Bibs are sent in a white envelope with a first class stamp. Sometimes bibs are set aside as a bill or other mail.

Items will ship based on the timelines listed below.

Recent Registration Deadline
Those who registered by September 15 will receive their shirt/bib orders by October 8. Shirts and bibs have since sold out for this event.

Old Registration Deadline
Those who registered by August 8 will receive their shirt/bib orders by August 31.

are there other yellowstone EVENTS?

Yes! The Yellowstone 150 Challenge is going on now through March 22. This 150 mile challenge is made up of 6, 25 mile milestone where you'll earn commemorative coins featuring Yellowstone landmarks.

will a portion of my registration benefit a charity?

Yes! A portion of proceeds will benefit Wander Project.

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