TCS London Marathon 2026
TCS London Marathon 2026
Sunday 26 April 2026
About this event
The TCS London Marathon is one of the most popular marathons in the world and we are excited to cheer on #TeamSIA as they embark on this remarkable adventure, turning their passion into action and their miles into meaningful change.
In 2025 we have 15 runners taking part in this unforgettable experience. Good luck Tommy, Steph, Tilly, Charlie, Emma W, Emma S, Alice, Juliette, Hayley, Nicholas, Oliver, Carrie-Ann, Sara, Declan, and Jo.
Turn your marathon dreams into reality? … Join Team SIA in 2026
DATE: SUNDAY 26 APRIL 2026
We have a limited number of London Marathon places each year. As such, we ask anyone who is interested in running for us to fill out our application form as early as possible. This helps us shortlist all interested supporters and choose our runners.
Please include as much detail as possible in your fundraising plans – we recommend at least three fundraising ideas to help you reach your £2,000 target and your motivation for supporting SIA.
Applications for our 2026 TCS London Marathon charity places will open soon!
We usually review all applications a year in advance of the race and inform everyone if they have been successful before the end of July (** Please note these timings may change)
Official ballot and own place runners
In addition to applying directly with us, we highly recommend everyone applies for the London Marathon public ballot, as this will maximise your chances of taking part. If you are successful in the public ballot, you can still run for us and join Team SIA to receive all the same benefits.
The ballot will open on Friday 25 April 2025 and closes on Friday 2 May 2025.
The winners are drawn at random, so everyone has an equal shot – it’s all about the luck of the draw. If you’re successful, you’ll secure a coveted spot in the next TCS London Marathon.
Benefits of running for Team SIA runners
- A dedicated staff member on hand to offer you support, tips and advice along the way.
- A free fundraising pack containing a branded t-shirt, handy tips and ideas.
- You will become a part of #TeamSIA, join our official team WhatsApp group, and we we’ll be there on the day to cheer you along.
- Connect to our Just Giving page for extra motivation; you will of course set up your own page with your individual target but you will also be contributing to the overall team target.