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Amanda, 35, is raising money for Anthony Nolan who helped find a bone marrow donor to save her husband's life.
Jason Blair, 39, was first diagnosed with cancer in 2006. He was successfully treated at the time, but non-Hodgkin's Lymphoma returned five years later.
With help from Anthony Nolan, a donor was found and Jason had a successful bone marrow transplant in 2012.
He was fit enough to complete the Virgin Money London Marathon just nine months later and now wife Amanda plans to join him in next year's race to raise money for Anthony Nolan.
One of Amanda’s main reasons for running is to encourage more people to sign up to become bone marrow donors.