I’ve been lucky enough to have enjoyed a charmed life and recognise many of the young people Brathay help have been much less fortunate. And that’s the reason why I'm back for a third 10in10 at the age of 60 years old. Brathay does such good work that since my first marathon in 2008 I have returned to either run or help. My first and second 10in10 were far from easy so I expect this one to be even harder given that I now qualify for a bus pass!

Proud to come from Paisley, I have lived in Leeds for 40 years. At school I was always the last to be picked for the sports teams so it was as much a surprise to me as my family that having watched the first London marathon I said I would do one. I then did the Leeds marathon in 1982 and said never again. Approaching 40, I ran another one, missing a sub four hours by three minutes I had to get my time to under four hours. I have now run 131 marathons, three Ironman triathlons and the Marathon des Sables.

I belong to Kirkstall Harriers and the 100 Marathon club. In the past I have raised over £10,000 for charity and hope to achieve this for Brathay in 2016. I hope to draw on ‘thoughts of ‘the exploits of Ranulph Fiennes, one of my inspirations, to keep me going when things get tough, as I know they will. My biggest fear is being pulled out of the event through injury, and that is what will help me do the long hard training runs through the winter months.

To support Jim's fundraising please visit www.justgiving.com/Jim-10in10-at-60