Have you been diagnosed with a brain tumour? Order your free information pack.

Santa in the City London 2025

Take part in the most festive 3K in London all whilst accelerating a cure. Fun for the whole family!

When:

3rd &4th December 2025

Where:

Paternoster square

Registration fee:

£35

Sponsorship:

As much as you can!

Join hundreds of other Santa’s for a 3Km fun run, jog or walk, starting at Paternoster square. This event is for the whole family to enjoy so is the perfect way to get in the festive spirit, whilst helping all those affected by a brain tumour diagnosis.

Every runner is provided with a 5-piece Santa Suit (Hat, beard, jacket, trousers & belt), runner number & medal!

Registration for this event is completed by Run For Charity.


Supporting you

When you join our team, you’ll receive support from the Events Team including:

If you have any questions, don’t hesitate to get in touch with us; email events@thebraintumourcharity.org or call 01252 237867.

Got your own place?

We’d love you to run for us, so let us know to get your free Charity running vest. We’ll support you every step of the way!


Every day, 34 people in the UK are given a devastating brain tumour diagnosis. For these people and their loved ones, cures simply can’t wait! When you sign up to take on the Robin Hood Half Marathon, every mile you run, every metre you move and every penny you raise, will help give hope to those affected by brain tumours.

Vector image of test tubes in a stand

Every £300 you raise

could fund a day of world-class research into brain tumours.

Vector image of a DNA strand

Every £1,000 you raise

could fund the RNA sequencing required for one of our research projects developing cures for children with brain tumours for an entire year.  

Vector image of a cell under a magnifying glass

Every £2,000 you raise

could fund the bioluminesence imaging required for a year on one of our glioblastoma research projects. 


Looking for an alternative run local to this event?

Click below to to find a place, sign up and run for us!