
BOO! Brain Cancer 5K and Bike Challenge
Wed, Sep 30, 2026, 8:00 PM CDT
- Type
- Virtual
Finish signup on the organizer site (check fees and dates there).
Race feel
A virtual bike and run challenge in October, raising vital funds for pediatric brain cancer research and patient support.
- Quirky
- Festive
- For a Cause
Join the virtual BOO! Brain Cancer Bike Challenge and 5K throughout October to support pediatric brain cancer research and patient care. This event helps raise crucial funds for Princess Hailey's Hope Foundation, dedicated to fighting Diffuse Intrinsic Pontine Glioma (DIPG), a devastating childhood disease. Participate virtually from anywhere to make a difference in the lives of children battling brain cancer.
What to expect
- Complete 25 or 200 virtual bike miles, or a virtual 5K walk/run, throughout October.
- Track your progress on the race page and share photos in the Facebook group.
From the organizer
Join us for our 4th annual BOO! Brain Cancer Bike Challenge and 5K , and help us raise funds for pediatric brain cancer research and patient support!
Brain cancer is now the leading cause of death by disease in children and Diffuse Intrinsic Pontine Glioma (DIPG) accounts for approximately 50% of those deaths. There is no cure for DIPG and the majority of kids will survive 9-11 months following diagnosis. No child deserves to be given a death sentence. Help us raise awareness and change these scary statistics.
The Boo! Brain Cancer Challenge has several participation options. We are continuing the virtual bike challenge for 2026, in which participants choose to complete 25 or 200 miles during the month of October. We also have a virtual 5K walk/run challenge. We encourage you to track your miles on our race page and post pictures in our Facebook group!
Register by September 30th to receive a challenge medal!
How do I sign up?
Visit https://runsignup.com/boobraincancer Enter the registration details for yourself and any members of your family who are completing a challenge with you You can create a team or ride as an individual. If you want to join a team but don’t know anyone else participating, join Team Princess Hailey! Choose the bike challenge or 5K event(s) you would like to complete during October Sign up to become a fundraiser and share! This part is completely optional, but the more funds raised = the more research and support funds are available to help the next child diagnosed. As you compete in your challenge, send your photos to princesshaileyshope@gmail.com, and we will post them on social media! You can also tag us @princesshaileyshopefoundation and use the hashtag #boobraincancer. Childhood Cancer is Boo Sheet shirts are available at https://www.bonfire.com/childhood-cancer-is-boo-sheet/ .
Proceeds from this race benefit Princess Hailey's Hope Foundation , a childhood brain cancer charity formed in memory of Hailey Acevedo, who bravely battled DIPG for 17 months. Our mission is to raise funds for childhood brain cancer research, with an emphasis on DIPG, and to support children who are battling the disease. We provide support by sending personally curated care packages, called Hugs from Hailey, to children in the fight; we also help patient families with the cost of travel to clinical trials and expanded access treatment centers. For more information on our organization and programs, please visit our website at https://princesshaileyshope.org , and like/follow us on our Facebook/Instagram pages @princesshaileyshopefoundation.