The Vitality Big Half 2021 The Vitality Big Half is back for 2021 on the 25th April. There will be specific social distancing procedures in place at the start and the finish to help keep people safe. More details on this to follow. We have 6 places for the 2021 event. Created by London Marathon Events Ltd, The Vitality Big Half is London's community running festival. London's community half marathon starts by Tower Bridge and finishes at the Cutty Sark, passing through the boroughs of Southwark, Tower Hamlets, Lewisham and Greenwich. The minimum fundraising requirement will be £300. If you wish to register for the event please contact us and let us know how much you think you can raise! More details and an application form will follow shortly.