The Big Half 2025

Sunday 7 September 2025

Race London’s most vibrant and inclusive half marathon for Deafblind UK!

Join Team Deafblind UK, and over 16,000 runners, racing 13.1 miles through the buzzing city streets of London from Tower Bridge to a iconic finish beside the Cutty Sark, Greenwich.

The electrifying atmosphere of The Big Half will take you on a route that passes many of the historic landmarks of London’s full marathon and through the London borough’s of Tower Hamlets, Southwark, Lewisham and Greenwich. Check out the full route here

By choosing to run The Big Half and fundraise for Deafblind UK, you’ll be helping us to continue providing vital support to thousands of people living with dual sensory loss every year.

Join team Deafblind UK!

Enter today!

Join the Deafblind UK team with a charity place for just £20 and a commitment to raise £350 sponsorship.

We’ll support you every step of the way throughout your journey, from training and fundraising to crossing the finishing line!

You will get:

An official Deafblind UK running vest or t-shirt
Fundraising pack with everything you need to start fundraising
Help and advice to reach your fundraising goals
Tips for training and planning your marathon day
The opportunity to connect with other Team Deafblind UK runners
The chance to shout about your story on our social media channels

We can’t wait to welcome you to Team Deafblind UK!

Enter online now!

or call 01733 973452 or email [email protected]

Already have your own place in The Big Half?

If you have secured your own place in The Big Half 2025, we’d love you to run in aid of Deafblind UK! You’ll receive the same great level of support from our dedicated team and every £25 raised for your challenge could provide another hour of specialist wellbeing support for someone who is deafblind.

Get in touch with fundraising today so that we can support you in your training and fundraising journey.

Start fundraising today!