On 26 April 2026, I plan to be on the start line of the London Marathon. I’m in my fifties, I’ve only been running for a few years, and this will be my first marathon. I’m doing it to raise money for the Teenage Cancer Trust (TCT).

Cancer is brutal for anyone. For teenagers and young adults, it can be isolating in a particular way: while friends are setting off on the adventures of early adulthood, they’re navigating a life-changing – and sometimes fatal – illness. TCT’s specialist nurses and teams work within and alongside the NHS to make sure young people feel safe, seen and supported. They advocate for them in systems that don’t always know what to do with a 19-year-old having chemo, bringing expertise and sensitivity when it’s needed most.

I’m running in memory of Winnie – a cousin and a childhood friend of my daughter. Winnie died of cancer on 22 April 2025. She was 20. Through countless challenges she was upbeat and determined. She kept studying for a law degree throughout her ten months of treatment, despite her university’s initial reluctance to support the idea. Her degree will be awarded posthumously – a testament to Winnie’s courage.

Throughout her treatment, Winnie and her family were able to rely on TCT clinical nurse specialists for support, advice and advocacy. Her family are enormously grateful to TCT, and when I asked which charity I should run for, they didn’t hesitate.

I’m grateful for the chance to try to complete the London Marathon, and I don’t plan to waste it. If you’re able, please donate to the Teenage Cancer Trust. Your support will help TCT’s nurses be there for more young people like Winnie.

Thank you so much,

Tim Harford

P.S. If you’re a UK taxpayer, please consider adding Gift Aid so your donation goes even further.