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.
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.
“Actually, I did not think about the record that much today,” Duplantis said. “Usually, it is always somewhere in the back of my mind but today I was really focused on the win and I really wanted to win the gold so badly. It was the medal I was missing.
“I cannot figure the next heights right now. I am going to have a bit time off with my family and my friends.”
Nigeria’s Amusan breaks 100m hurdles world record
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 as the semi-finals delivered an extraordinary set of times.
The 25-year-old, who ran a new African record of 12.40 seconds in Saturday’s heats, clocked 12.12.
Her time beat the 12.20 set by American Kendra Harrison, who finished second behind Amusan, in 2016.
“I wanted to get out and go,” said Amusan. “I did what I had to do.
“I believe in my abilities but I was not expecting a world record at these championships.”
Amusan went on to win gold in the final, two hours later.
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.