Despite the wind, a cool temperature (about 16 degrees) and intermittent light rain, Duplantis succeeded in his first jump over 6 m of his summer season, on his first attempt, before stopping his competition.
The 22-year-old Swede, pole vaulting prodigy, had beaten his world record twice indoors this winter to bring it to 6.20 m.
European and Olympic champion in title, he is aiming this summer at the Worlds in Eugene (Oregon, July 14-25) the outdoor world title, the last one missing from his list.
Olympic bronze medalist and European record holder, local Femke Bol easily won the 400m hurdles in 53 sec 94/100e for her comeback.
Behind Britain's Eilish McColgan (30:19.02), starting alone, Ethiopian world record holder Letesenbet Gidey (30:44.27) dominated her compatriots in the Ethiopian selection race for the World Championships in the 10,000m.
On Saturday, Olympic champion Selemon Barega dominated the men's race (26:44.73) and also validated his ticket for Eugene.
© 2022 AFP