100 miles. 100 days.

There's only one rule with this challenge: you must complete at least 100 miles in less than 100 days. How you complete it, is up to you!

Sign up now

How does it work?

Sign up for a solo challenge or create a team a team with friends, family or colleagues. Everyone who completes 100 miles will receive a Challenge 100 medal and when you've raised your first £25 we'll send you a Challenge 100 t‑shirt!


Epilepsy Society

About us

1 in 100 people in the UK are living with epilepsy, and a third of those have seizures that cannot be controlled by medication.

Your support will help us to continue to transform the lives of people living with epilepsy through advocacy, research and care. If you need any further support please contact fundraising@epilepsysociety.org.uk

Frequently Asked Questions

Thank you for your interest in Challenge 100

Thanks to your support we have raised over £80,000 to help support those living with epilepsy.

Registrations for the 2022 event have now closed but we will be back next year!

See you then.

One more step!

Thank you so much for signing up for Challenge 100 2022! We are so excited you are joining us for this event and can't wait to see what you achieve.

Remember to check your emails to complete your GivePenny registration, and why not ask a friend or family member to join in too?