Please use the registration form below or click on the runner’s world banner to register for the 2013 Marathon – kindly note we will no be issuing any entry refunds after the end of Feb 2013 , as we will be allocating monies towards the Royal Parks and charities – that help support our event. As of early January 2013, we are almost full up so please do not hesitate to register to avoid missing out on London’s best trail marathon.