Sue Barker presents coverage of the New York marathon, one of the world's most prestigious distance races. This is Paula Radcliffe's first marathon for over two years as she attempts to qualify for the Beijing Olympics. Radcliffe won in New York in 2004 and holds the world record for the distance- but her time away with daughter Isla may compromise her performance. A top-class field is expected, including two-times New York champion Jelena Prokopcuka and World champion Catherine Ndereba.