Competitor bio:

Jason, aged 49, lives in Sussex, England and works as a Facilities Director in London. He has run many marathons and several Ironman triathlons, the last in Zurich in July which took 12 hours. In the last 12 months he had a best marathon finish time of 3 hours 20 minutes and finished Hadrian's Wall Ultra Marathon (69 miles) in 13 hours. Jason has always tried to challenge himself mentally and physically. The World Marathon Challenge is on another scale and he knows it will test both mind and body to the limit! Jason is lucky to be supported by various sponsors. He supports the youth charity, The Prince's Trust, which creates opportunities for vulnerable young people to thrive, take responsibility for their lives and work towards a future they can be proud of. Founded by HRH The Prince of Wales over 40 years ago, the charity has helped more than 870,000 young people since 1976 and supports 100 more each day.