Hi, we’re Callum and Shayla, and we’re running the London Marathon in support of Action for A-T — a charity that funds vital research and stands beside families affected by Ataxia Telangiectasia (A-T).

A-T is a rare genetic condition that begins to show itself just as children are learning to walk. Instead of taking their first steps toward independence, these children begin to lose it. Balance becomes harder. Infections become more frequent. And families live with the constant fear that comes with an extremely high risk of cancer.

Through years of working in this research space, I’ve seen firsthand how deeply A-T impacts not only the children, but parents, siblings, and entire families. It’s relentless, and it’s heartbreaking.

Action for A-T is a lifeline — offering hope through research, and real, practical support to families who desperately need it.

By supporting our run, you’re helping to fund research that could change lives, ease suffering, and bring hope to families facing the unimaginable.

If you’re able to donate, share our story, or simply help raise awareness, it would mean more than we can say.

Thank you for your kindness, your compassion, and for standing with children who need it most.

— Callum & Shayla