The Big Half 2025
Sun 07 Sept
|London
Attending London's biggest Half Marathon? Sign up to stay in the loop with what we are doing.


Time & Location
07 Sept 2025, 07:30 – 15:30
London, 40-42 Greenwich Church St, London SE10 9BL, UK
About the event
RUN SOCIAL's biggest event of the Autumn is back! The Big Half begins in the heart of the old city by Tower of London, heads to Canary Wharf, loops around back to Tower of London and across Tower Bridge, before heading torwards historic Greenwich and finishing at the iconic Cutty Sark.
Our members might be aiming for a PB in the race, they could be trying to complete a personal challenge they've set themselves, or they may be there to cruise around, take in the sights, soak up the atmosphere and enjoy the day; it does not matter. RUN SOCIAL are here to help us all achieve our personal goals no matter what they are. If you are running at the event, check out the guide details for NORTH and SOUTH assembly points(your assembly point will be on your envelope, email and bib). Also make sure to join our chat to find other…