IMAGE: Ethiopia's Tamirat Tola celebrates as he crosses the finish line at Invalides to win gold in the Men's Marathon at the Paris Olympics, on Saturday. Photograph: Isabel Infantes/Reuters......
IMAGE: Uganda's Joshua Cheptegei celebrates winning the Olympics men's 10,000m final at Stade de France, Saint-Denis, in Paris, on Friday. Photograph: Phil Noble/Reuters World record holder Joshua......
IMAGE: Kenya's Amos Kipruto celebrates winning the men's TCS London Marathon in London on Sunday. Photograph: Paul Harding/Getty Images Kenyan Amos Kipruto won his first London Marathon title on......
The Vaporfly controversy has ignited a wider sporting debate: where should the line be drawn between advances in sports technology and equipment giving competitors an unfair advantage, be it......