Competitor bio:

Johanna has Cerebral Palsy and will be attempting to complete the World Marathon Challenge in a specially designed wheelchair. While she has made it to the top of Mount Kosciuscko in Australia and to Machu Picchu in Peru, this will be a grueling step up for her. She is raising funds for the Cerebral Palsy Alliance in Sydney, who have greatly supported Johanna all her life. During the WMC, she will be supported by Steve Birnie and James Alderson who will have to put up with her very dark sense of humour on every continent.