She has set the record to hail over the Olympic arenas in Japan.
Elaine Thompson-Herah did 200 meters in 21.53 seconds - a time that both gave her gold in the distance and is the second best ever.
She was 28 percent ahead of silver medalist Christine Mboma, Namibia, and 34 percent ahead of Gabrielle Thomas, USA.
Thus, she took her second Olympic gold at this championship.
Three days earlier, the Jamaican took a gold in the 100 meters when she ran 10.61.
That time was also an Olympic record, when she broke the previous record of 10.62, which was 33 years old and was held by Florence Griffith-Joyners.
She is the first female athlete to take double sprint gold in two straight Olympics. The last time an athlete did it was Usain Bolt, who did it at the Olympics in London 2012 and the next edition in Rio.