This week joining Jenni is an author, sports journalist and brilliant marathon runner, Will Cockerell.

Jenni and Will chat marathon training, his favourite marathon, his book 'The 50 Greatest Marathon Races of all Time' and they delve into challenges and races where people may not have been honest with their running. From Fred Lorz of the 1904 olympics catching a ride for a portion of the race, to the iconic Rosie Ruiz at the 1980 New York and then Boston Marathon cheating her wins, and the recent challenge of Andi Rivett's JOGLE (John o' Groats to Lands End) world record.

A fascinating listen.