For African athletes making money abroad is the big goal. But Kenyan marathon runners need to be careful – the industry is ruthless and only few make it. For years, sports managers have been bringing African athletes to Europe to run in marathons with promises of potential prize money and a top career. For many it’s a means of escaping poverty. But what price do the marathon runners themselves pay? Long-distance running is among the toughest disciplines in the world. Professional marathon runners battle over seconds in a race more than 40km long - seconds that are often worth huge sums of money. Running has become a business. The prize money for a major event can be in five figures. Participants have to be world-class athletes to win these amounts..