Cool yet controversial ultrarunning star Jim Walmsley makes his first visit to Hong Kong, and discusses his victories, greatest failures and how he sets goals.

Nikki Han on her history-making, record-breaking ultra marathon win

Whether you run, jump, cycle, swim or climb, listen in each fortnight as your hosts Mark Agnew and Mary Hui chat with key figures in trail running and adventure sports about the big issues they are facing. Brought to you by the South China Morning Post.