The 22-year-old world record holder (6.20m in March in Belgrade indoors) did better than his 6.15m achieved in September 2020 in Rome, just two weeks before the Eugene Worlds (15- July 24).
Before Duplantis, it was the Ukrainian Sergey Bubka who had jumped the highest in the open air (6.14 m in 1994).
"Mondo" Duplantis, who was born and raised in Louisiana with his American father and Swedish mother, has been crushing the pole vault for several years.
European champion in 2018 in Berlin, Olympic champion in 2021 in Tokyo, only the title of outdoor world champion is missing from his list.
He has already broken the world record four times since 2020, gradually raising it from 6.17m to 6.20m this winter when he became indoor world champion in Belgrade.
© 2022 AFP