Bol, running in front of a home crowd at the Dutch Indoor Championships, beat Jarmila Kratochvílová’s world record of 49.59 seconds set in 1982. After making a strong start – hitting 23.63 at the 200-meter mark – Bol closed out the record to deafening noise in Apeldoorn.
It is an addition to an already very impressive CV for the young Dutchwoman.
Having won 400m hurdle bronze in Tokyo and silver at the world championships last year, she set a world-best 300m hurdle mark last year and ran a world indoor best 500m earlier this year – neither of which is on the world championships program.
Bol is the third-fastest woman in history in the 400m hurdle, only behind Sydney McLaughlin-Levrone and Dalilah Muhammad, both of whom finished ahead of Bol in Tokyo.
The outdoor 400m world record is 47.60 and was set by German Marita Koch in 1985.
According to CNN