Organised by London Marathon Events, Big Half is a vibrant, inclusive half marathon with a fun, festival atmosphere. The 13.1 mile course weaves through London from Tower Bridge to the iconic Cutty Sark in Greenwich. Great for novices and experienced participants alike, join thousands of other participants in this spectacular half marathon event through the heart of London.

Big Half 2025 - Big Half 2025 - Charity Place

Charity Place

Pay the registration fee to secure your charity place and then pledge to raise the minimum sponsorship target by one month after the event.

£20.00
Register
Big Half 2025 - Big Half 2025 - Own Place

Own Place

If you have purchased your own place directly with the race organiser but would like to fundraise for Diabetes UK, you can register with us for free.


Register