McLaughlin-Levrone throws down gauntlet to Kipyegon in race to be greatest

American has 400m hurdles word record in sights

Kipyegon is first woman to win four 1500m world titles

First Tokyo witnessed the spectacular. Then came a divine act of Faith.

In the women’s 400m, Sydney McLaughlin-Levrone ran one of the fastest times in history, easing down, to raise the question of whether one of the oldest – and most controversial – track and field records might fall later this week.