The Big Half is a vibrant, inclusive half marathon with an unmissable festival atmosphere! It features a stunning 13.1-mile course that sets off by Tower Bridge in central London and finishes at the famous Cutty Sark in Greenwich.
If you’d like to take part in The Big Half next year, you can register your interest in the 2023 event now! We’ll let you know as soon as a date is confirmed and entries open.
Event Details
- Date:
- 3 September 2023
- Location:
- London
- Registration Fee:
- TBC
- Fundraising Target:
- As much as you can

We will be with you every step of the way:
- Dedicated fundraising and training support, including a fundraising pack and regular updates
- Your own GBSS t-shirt or running vest
Whether want to take on the full half marathon distance in The Big Half, complete 13.1 miles as a team in the New Balance Big Relay, or have fun with family and friends in The Big Mile, simply fill out the form and we’ll let you know when entries open for 2023.
Got your own place for this event?
Got a question?
We would love to hear from you and answer any question you may have about taking on the Big Half for Group B Strep Support. Call the fundraising team on 0330 120 0795 or e-mail fundraising@gbss.org.uk