Phyllis Francis 

Phyllis Francis 

Fernando Frazao, Wikimedia Commons

Phyllis Francis of Queens, N.Y. is now the queen of international track and field when it comes to the women's 400m. On Wednesday, Francis won the gold medal in the women's 400m at the 2017 International Association of Athletics Federations World Championship in London, England. 

Francis posted a winning time of 49.92 seconds, which was a personal best. Salwa Eid Naser of Bahrain set a Bahraini national record to win the silver medal with a time of 50.06 seconds. Allyson Felix of Los Angeles, CA won the bronze medal with a time of 50.08 seconds. 

Francis reached a podium spot by 0.57 seconds. Shaunae Miller-Uibo of Jamaica finished in fourth place with a time of 50.49 seconds. 

This was Francis's first gold medal at the IAAF World Championship. She previously won a silver medal in the women's 4x400m relay at the 2015 IAAF World Championship in Beijing. The United States will try to get revenge against their rivals from Jamaica, who beat the Americans at the world championship two years ago. The women's 4x400m goes Sunday. 

Francis is also an American Olympic gold medalist. She won the gold medal with Courtney Okolo, Natasha Hastings and Felix in the women's 4x400m at the 2016 Olympic Games in Rio de Janeiro.