Every Tuesday, we find an expert to answer curious questions about the world and how it works.
And tonight, we are looking at the underappreciated sport of race walking: the rules, the techniques, and the greats.
Olympian, Commonwealth silver medalist and now president of Race Walking NZ Alana Barber-Blocki chats to Emile Donovan.
New Zealand's Alana Barber takes silver in the womens 20km race walk. Picture by John Cowpland / www.photosport.nz Photo:
