World Athletics Championships: Armand Duplantis breaks pole vault world record

Sweden's Armand Duplantis added a new world record to his pole vault world title, clearing 6.21m in a virtuoso performance in Oregon.

The 22-year-old Olympic champion had gold secured with a first-time clearance of 6m. None of his rivals managed higher than 5.94m.

Duplantis then beat his own world record of 6.20m - set in Belgrade in March - at the second attempt.

It is the fifth time he has broken the world record.

His success marked the first time the record has been set outdoors since the legendary Sergey Bubka cleared 6.14m for the first time in Sestriere, Italy, in 1994.

• GB's Hodgkinson loses out in 800m duel with Mu

• My World Championship highlights - Michael Johnson column

Duplantis, who grew up in Louisiana, celebrated with a front flip in front of a packed crowd, kissed girlfriend Desire Inglander, before being embraced by his father Greg, a former top-class pole vaulter himself.

"It was something that I really wanted and needed," Duplantis said to BBC World Service of the one major medal missing from his collection.

"I was so caught up in trying to win and capture the gold that honestly the world record thing was just an afterthought.

"It didn't cross my mind during the competition because I just wanted to win so badly.

"To be able to do it in the fashion I did is very special. It is something I am very grateful for."

Asked how high he could potentially push the record, Duplantis added "there is definitely more".

"It doesn't feel like I have maxed out what I can do yet. As long as I feel I can keep pushing boundaries, the motivation is still going to be there. Plus I am having fun doing it," he said.

It was the second world record set on the final day of competition at the World Championships in Eugene.

Earlier, Nigeria's Tobi Amusan broke the 100m hurdles world record in a time of 12.12 seconds in her semi-final, before winning gold in 12.06. That time in the final would have been another new world record, but was ruled ineligible by a tailwind over the legal limit.

Great Britain's Cindy Sember finished fourth in the semi-final won by Amusan, but qualified for the final with a British record of 12.50, beating sister Tiffany Porter's 2014 mark by one hundredth of a second.

It was one of four national records, excluding Amusan's, run in the semi-finals, with another seven athletes equalling or breaking their personal bests.

"That was a crazy race. I actually thought I was running slow. Tobi was amazing, I can't deny," said Sember, who went on to finish fifth in the final.

• 'I thought one day I'd be in that band': Ronnie Wood talks candidly about his life as a Rolling Stone

• A telescope designed to unfold in space: Could it be the first to detect signs of life on a distant planet?