About the 2026 BOO! Brain Cancer Virtual Challenge
This is a virtual event, so the course is wherever you are. You can walk, run, hike, or bike, and you pick the distance that fits your month. There is no single race morning to plan around; participation is spread across the whole month. All proceeds go to a volunteer-led foundation working to find better treatments for children with pediatric brain cancer.
Participants track their activity on the race page and can share photos and updates in a dedicated Facebook group throughout the month. You can go solo or join a team, and there is an open team available if you want to connect with other participants without forming your own group.
Free race emails
Get the Weekly RunSesh
In for this one or still deciding, keep race season near Any City-Any State on your radar: a Monday look ahead and a Thursday rundown of the weekend's races.
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Distances & Start Times
3.1 Miles10/1/2026 00:00$30
3.1 Miles10/1/2026 00:00$25
6.2 Miles10/1/2026 00:00$30
6.2 Miles10/1/2026 00:00$25
Boo! Brain Cancer "Choose Your Own Challenge" Event - With Challenge Medal10/1/2026 00:00$30
Boo! Brain Cancer "Choose Your Own Challenge" Event - No Challenge Medal10/1/2026 00:00$25
Going for a Time?
Set a goal and get a pace band: every mile split on a card sized for your phone lock screen, so race morning needs no math.
Where to Stay
Traveling for this race? The map shows hotels and rentals in and around Any City-Any State — pan or zoom to compare what's nearby.
The map is provided by Stay22. If you book through it, RunSesh may earn a commission at no extra cost to you — it never affects the races we list.
