19:50More or LessJust How Rare is a Hole-in-One?BBC World Service Duration: 9 minutes Sun 7th Jan 2018, 19:50 on BBC World Service West and Central AfricaAvailable for over a yearListen nowWhy it is not as simple to work out as you think. Show more GenresFactualFormatsMagazines & ReviewsBrandMore or Less Source: BBC Online