Amusan finished in 12.06 seconds at Hayward Field after breaking the world record in the semifinals with a time of 12.12 seconds.
Amusan won the gold medal in the 100m women’s hurdles competition, defeating competitors including Olympic Champion Casmine Camacho-Quinn.
With her victory, the athlete from Ogun State has become the first African or Nigerian to win a gold medal in the competition.
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Bolt, the former world’s fastest man, congratulated Amusan on social media.
“Superb #Tobi,” the Jamaican wrote on his Twitter account.
Amusan also received a $100,000 check for winning gold in the women’s 100-meter hurdles final, where she also broke her own semi-final record.
She is indeed making Nigerians proud.