Athletics Kenya has suspended Josephine Jepkoech Jepkorir and Agatha Jeruto Kimaswai for two and four years respectively after they tested positive for the banned anabolic agent norandrosterone.

Matej Toth, winner of the men’s 50 kilometres race walking world title here today in 3 hours 40min 32sec, said afterwards he will not compete at next year’s World Race Walking Cup in Cheboksary because of the doping scandal involving many Russian walkers coached by the now suspended Viktor Chegin.

On the day when Liu Hong duly delivered the host nation its first gold of the World Athletics Championships in today’s women’s 20 kilometres race walk, with team-mate Xiuzhi Lu adding silver, Dafne Schippers of The Netherlands became the first European winner of the world 200 metres title since 2003.

For the second time in four days, Usain Bolt held off the challenge of Justin Gatlin of the United States here to complete his world 100/200 metre double in 19.55sec, the fastest 200m time run this year, and conclude a rare night of athletics that had already been punctuated with a historic triple jump of 18.21m by Christian Taylor, the second best ever achieved.

The event officially opened here last Saturday by the Chinese President was not just the International Association of Athletics Federations’ World Championships – it was self-styled as the Green Championships, with concern for the environment being one of its key elements.

South Africa’s Wayde Van Niekerk had to be taken to hospital here last night after winning the world 400 metres title in 43.48sec, the fastest time run since 2007.

Two female Kenyan athletes - 400 metres runner Joyce Zakary and 400m hurdler Francisca Koki Manunga - have been suspended following positive doping tests here at the International Association of Athletics Federations World Championships.

On a night when 18-year-old Jianan Wang wowed the Bird’s Nest Stadium by winning bronze in a global final contested, unprecedentedly, by three Chinese athletes, Britain’s Greg Rutherford fed off all the excitement and took gold with a season’s best of 8.41 metres to complete his set of Olympic, World, Commonwealth and European titles.

Just like her fellow Jamaican Usain Bolt on the previous night, Shelly-Ann Fraser-Pryce returned to the Stadium where she had won her first global 100 metres gold at the Beijing 2008 Olympics and did it all over again.

I had an exciting, if rather terrifying experience, today when called in to do a television interview on CNN’s World Sport programme about the weekend’s 100 metres showdown between Usain Bolt and Justin Gatlin.

Usain Bolt resisted the challenge of the world’s fastest man this year, Justin Gatlin, to retain his world 100 metres title here tonight in what he described as his “hardest race.”

Mo Farah won his sixth consecutive global title here tonight to lay claim to being Britain’s best ever championship performer.

As we, the summoned and assembled media, awaited the start of Usain Bolt’s press conference in a very large room inside the Nuo Hotel - a start which was by now delayed more than half an hour - it became apparent that the reggae which had been thumping and bumping away in the foreground during that time was on a loop.

Bob Marley’s One Love did its thing once again. Meanwhile the long black leather sofa in front of us remained untenanted, flanked by dotted red and green spotlights trained on the crystalline ceiling.

Good luck to Sebastian Coe, a true friend - and passionate fan - of athletics as he goes toe-to-toe with another Olympic legend, ex-pole vault maestro Sergey Bubka, for the right to rule the turbulent world of track and field.

British supermarket giants Sainsbury’s have announced they have decided to end their sponsorship deal with British Athletics two years ahead of schedule owing to cost-cutting measures within the industry.