PAULA RADCLIFFE'S last chance of challenging for an Olympic medal was today rated as only 50/50 by UK Athletics head coach Charles van Commenee.

The 38-year-old failed to finish both the marathon and 10,000m in Athens in 2004 after being hampered by illness and injury. She did finish the marathon in Beijing in 2008, but another leg injury saw her finish down in 23rd.

Asked specifically if Radcliffe would be fit enough to compete in London, Van Commenee added: "Shall we flip a coin? Paula is Paula."