Are you ready for the electric atmosphere of a running event like no other? Then you don’t want to miss the legendary TCS London Marathon 2025. And, when you run it for Anthony Nolan, as you power your way around London’s parks and pavements, you’ll also be powering our lifesaving research.

Anthony Nolan’s world-leading stem cell register, groundbreaking cell and gene therapy research and expertise in stem cell transplants means we currently help four patients a day in need of a transplant, giving more people another chance to live. But we know we can, and must, do more. Driven by patients, backed by stem cell donors, powered by science, and with your support, we won’t stop until we’ve uncovered the lifesaving potential of the cells inside us all, and every patient can survive and thrive.