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 in 2026 we will be cheering on our team as they embark on this remarkable adventure, turning their passion into action and their miles into meaningful change.

Turn your marathon dreams into reality and join Team SIA in 2026

We have a limited number of London Marathon places each year. As such, we ask anyone interested in taking part to complete our application form as early as possible. This helps us shortlist all interested supporters and select our team members.

Fundraising target: £2000

** The deadline for applications closed at 10pm Monday 16 June 2025. We are currently reviewing and will be informing the successful applicants by the end of June. Please note these timings may be subject to change.

Official ballot and own place entries

In addition to applying directly with us, we highly recommend everyone enters the London Marathon public ballot, as this will maximise your chances of securing a place. The winners are drawn at random, so everyone has an equal opportunity – it’s all down to luck!

** The 2026 ballot closed on Friday 2 May 2025 and results of the ballot were announced on 19 June 2025. 

2026 LONDON MARATHON BALLOT

If you’re lucky enough to secure a place through the public ballot, we’d love you to join #TeamSIA! You’ll receive all the same support and benefits as our charity place participants (see below). Please contact our challenge events team to find out more:

CONTACT OUR EVENTS TEAM

Benefits of taking part with Team SIA

  • A dedicated staff member to offer support and advice throughout your journey.
  • A free fundraising pack, including a branded t-shirt and handy tips and ideas.
  • Become part of #TeamSIA, join our official team WhatsApp group, and enjoy our support on the day.
  • Connect to our JustGiving page for extra motivation; while you’ll set up your own page with an individual target, you’ll also be contributing to the overall team goal.

Team SIA 2025

In 2025, 15 amazing participants took part in an unforgettable day in London. Thank you to Tommy, Steph, Tilly, Charlie, Emma W, Emma S, Alice, Juliette, Hayley, Nicholas, Oliver, Carrie-Ann, Sara, Declan, and Jo. Together, they raised over £65,000 for SIA, and we are incredibly proud of all their achievements.

TOMMYS STORYEMMA’S STORY