The Vitality Big Half
50% Off Using the code BIGHALF50

  • Asset 1 Tower Bridge, London, SE1
  • Asset 2 25 April 2021
  • Asset 3

    13 miles

  • Asset 4

    Starts: Tower Bridge

    Finishes: Greenwich

  • Asset 6

     Registration - £20 (50% off currently using code BIGHALF50)

     Minimum Sponsorship - £300


    Please be aware that buying a place from Asthma UK guarantees you a spot in the Big Half 2021. Joining the team with an own place is ONLY for runners who have already secured a place directly from the Big Half. Please do not sign up as an 'Own Place' runner if you DO NOT have a place at Big Half already.

Asset 5

Join Team Asthma UK in this fantastic event. 

For more information, please contact our Events Team

0300 222 5800



You could join Team Asthma UK for a half marathon on closed roads in the centre of London. The Vitality Big Half will give you a taster of the London Marathon as it follows the official course of the longer race, starting near London Bridge and finishing in Greenwich. It is then topped off with a festival in Greenwich Park to end the event.

Why run for Asthma UK?

Every ten seconds someone in the UK has a potentially life-threatening asthma attack and three people die every day. Tragically two-thirds of these deaths could be prevented, whilst others still suffer with asthma so severe current treatments don't work.

This has to change. That's why Asthma UK exists. We work to stop asthma attacks and, ultimately, cure asthma by funding world leading research and scientists, campaigning for change and supporting people with asthma to reduce their risk of a potentially life threatening asthma attack.

The sponsorship you raise will help fund world-class asthma research that’s bringing us closer to a cure, supporting hundreds of thousands of people with expert advice and support, and campaigning to improve the quality of care received by people with asthma.
For more information, or if you have any questions about the event, please contact us at or call 0300 222 5800.

Please note that these events are not organised by Asthma UK.


To help you along your journey, Asthma UK will be on hand offering support throughout. All Team Asthma UK supporters receive:

  • An Asthma UK top
  • A full fundraising pack with tools to help you reach your fundraising target
  • Training and nutritional advice to help get you to the start line
  • Regular updates with event information and top fundraising tips 
  • Ongoing dedicated support from our Asthma UK Events Team


If you have any questions about signing up for this event, please do not hesitate to contact our Events Team on 0300 222 5800 or email

Please note that this event is not organised by Asthma UK.