A thrilling world athletics championships in Beijing failed to silence growing questions about doping, giving the sport’s new boss Sebastian Coe much to ponder as he heads towards an Olympic year.

Dafne Schippers wins the women's 200m final in 21.63 (CR), just ahead of Elaine Thompson who ran 21.66. Veronica Campbell-Brown took the bronze in 21.97 and Dina Asher-Smith breaks the British 200m record, running 22.07

Dispelling two years of injury doubts, the Jamaican won three sprint gold medals this week for an overall world championship record of 11. The last of them came Saturday when he anchored the 4x100-meter relay team with free-flowing, giant strides that have made him an icon for the sport.

Britain's Mo Farah is chasing a unique 'triple-double' when he lines up for Saturday's world 5,000m final.

Shortly after Dafne Schippers had summoned a performance of raging intensity and sheer bloody-mindedness to reel in Jamaica’s Elaine Thompson, she was so dizzy she had to see a doctor. Everyone else knew how she felt. This was the greatest women’s 200m final in history.

Usain Bolt delivered Justin Gatlin a second knockout blow in five days to win his fourth straight 200 metres world title on Thursday and prove that when it comes to major championship sprinting, he simply has no peer.

Double-Olympic champion Shelly-Ann Fraser-Pryce continued the Jamaican sprint dominance of the Bird's Nest as she retained her world 100m title in blistering fashion at the World Championships.

Over darkened Beijing skies, a moment of blinding light. For two years Justin Gatlin has been the undisputed king of sprinting as well as athletics’ most controversial character, but cometh the hour, cometh Usain Bolt – but by the narrowest of margins.

Mo Farah made it six global distance titles in a row as he retained his 10,000m crown despite a last-lap stumble to win Britain's first gold of the 2015 World Championships.