The women's 100 metres hurdles at the 2022 World Athletics Championships was held at the Hayward Field in Eugene on 23 and 24 July 2022.

In heat 1, defending champion Nia Ali was out in front early, with three to automatically qualify, Britany Anderson come up to challenge her over the last few hurdles.

After the disqualification, notably of Devon Allen earlier in the week, athletes commented on how they were being extra careful about their starting technique.

Olympic Champion Jasmine Camacho-Quinn and world record holder Kendra Harrison had to battle back from slow starts to win their heats.

And after a protest, a seventh heat was created by disqualifying Ali for interfering with another athlete's hurdle, to allow Zagré a solo attempt to make a qualifying time.

In one day, Amusan improved the world record by 8 times the progress of 36 years and her personal best by almost a third of a second.

Amusan got out well in the final, but Anderson was next to her running the exact same cadence, with Alia Armstrong and Harrison inches behind.

Harrison hit the seventh hurdle, pushing over the eighth to be disqualified, Anderson and Camacho-Quinn separated from the lineup and Amusan was a metre and a half clear.