Armand Duplantis, who holds the pole vault world record of 6.22, entered the competition at the King Baudouin Stadium with an easy surpass of 5.62.
5.72 was a height the 23-year-old Swede stood over and then he hovered over first 5.82 and then 5.92.
Sam Kendricks has also managed the latter height.
The competition is ongoing.
ARCHIVE: Here's where Duplantis takes World Championship gold (2023-08-26)
Javascript is disabled
Javascript must be turned on to play video
Learn more about browser support
Watch Armand Duplanti's 6.10 jump in the World Cup final. Photo: Bildbyrån