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  • Home
  • Hailey's Story
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  • Donate
  • PHHF Blog
  • Resources
  • Merchandise
  • Financials & Contact
  • Little Drummer Fund Video

Register Today for the 2026 Boo! Brain Cancer Challenge!

There’s nothing scarier than a childhood brain cancer diagnosis. Join Princess Hailey’s Hope Foundation for the 4th Annual BOO! Brain Cancer 5K/10K is a virtual walk/run held throughout October to raise critical funds for DIPG and DMG research. Whether you walk, run, or participate with a team, every step helps bring hope to children and families facing these devastating diseases. 


Registration is open during October, but you must register by September 20th if you would like to receive a challenge medal!


#BooBrainCancer #PowerUpAgainstDIPG

Register Today!

How Does It Work?

Join participants from 11 states (so far!) and choose a 5K, 10K, or a challenge of your choice, then complete it anytime, anywhere in October. 

What Do My Registration Fees Fund?

 100% of event proceeds support pediatric brain cancer research through our Hope from Hailey program because children diagnosed with DIPG and DMG deserve better treatments, more options, and more tomorrows. 

How Do I Register?

 Register today, form a team, or donate to say "Boo!" to brain cancer and Power Up Against DIPG!

https://runsignup.com/boobraincancer


Register by September 30th to receive a challenge medal!


More research. More hope. More tomorrows.

Thank You to Our Sponsors

Meet the Kids We Honor in the Boo! Brain Cancer Challenge

Copyright © 2026 Princess Hailey's Hope Foundation - All Rights Reserved.


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