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Faith Kipyegon has won eight global golds on the track
ByHarry Poole
BBC Sport journalist in Tokyo
Faith Kipyegon stormed to a historic fourth world 1500m title as the Kenyan great extended her streak of dominance with a fifth consecutive global gold in the event.
The 31-year-old matched retired men's world record holder Hicham El Guerrouj as the only other athlete in history to amass four 1500m titles at the championships.
After securing her third consecutive Olympic triumph last year, this was a third straight world gold for Kipyegon, who controlled the final from the start before bursting clear of her rivals on the final lap.
Not only is she unbeaten in the past five global finals but, excluding heats, she has not suffered defeat over the distance for more than four years.
More to follow.