Potter and Vernon win in Highgate, Kipsang and Kipchoge pull out of the World Marathon Champs in London, reigning champion Wostmann is out of Comrades but Steve Way is on track. Joan Benoit-Samuelson is aiming for sub 3hrs at aged 60. Martin speaks to Ian Beddis about the ARUK Running Down Dementia Campaign and Tom speak to the incredible Kate Driscoll about her LEJOG self-supported run.