Hi, I'm Jamie Fox. You may remember me from such charity fundraisers as Kilimanjaro 2003, London Marathon 2008, or 100-Mile Cycle in 1 day 2010.

This year's event might not be quite as spectacular as some people's charity challenges, however compared to my previous ones I have done the least training for it. None at all in fact.

On Saturday I will be at Box Hill in Surrey for the Olympics road race. I will be going there by bike, setting off on Thursday and passing through London on the way.

Hopefully I can copy my daughter Karen in sporting prowess. I am proud to say she powered to victory in the school sports day egg and spoon race this year.

I hope to raise as much as I can for Hope and Homes for children to make children's lives better around the world.