I’m aiming to run the London Landmarks Half Marathon in 100 minutes. That’s 7mins 38s per mile. It’ll be my quickest half marathon since 2010, the year I was fit enough to do the London Marathon.

I am not currently fit enough to do the London Marathon. 

But it’s for Macmillan, a great cause that’s very close to home. So with your help, it’ll be worth the pain.

Fundraising is hugely important to Macmillan. Without donations, and people fundraising for them, they wouldn’t exist. And that'd be awful, because the work Macmillan do is genuinely amazing. Right from the moment of diagnosis, through treatment and beyond, they're a constant source of support, giving those with cancer and their loved ones the energy and inspiration to help take back control of their lives, and feel more like themselves again.

Your generosity will help them to provide a variety of services that help make sure no one has to through cancer alone.

Donating through JustGiving is simple, fast and totally secure. Your details are safe with JustGiving - they'll never sell them on or send unwanted emails. Once you donate, they'll send your money directly to the charity. So it's the most efficient way to donate - saving time and cutting costs.