It wasn't very long ago that sailors in the America's Cup were middle-aged, seasoned professionals sitting on big slow boats.
Today things are very different. Champion sailors are young and used to making decisions at high speed. They've grown up racing modern, ultrafast dinghies and catamarans. In the 35th America's Cup, the 26-year-old Peter Burling became the youngest ever skipper to lift the 'Auld Mug', and he had the youngest team behind him.