Canada’s Andre de Grasse picked up the gold medal in the men’s 200 metres, while Emmanuel Korir won the 800m for Kenya. It was a disappointing race for Nijel Amos, who finished eighth.
Allyson Felix was the headline name among those who earned qualification for the women’s 400m final, although she was outpaced by Jamaica’s Stephenie Ann McPherson in semi-final 3.
The women’s 400m final will take place on Friday in one of the last major events at the Olympics.