Usain Bolt
The men's world record holder is Usain Bolt of Jamaica, who ran 19.19 s at the 2009 World Championships. The women's world record holder is Florence Griffith-Joyner of the United States, who ran 21.34 s at the 1988 Summer Olympics. The reigning Olympic champions are Usain Bolt and Elaine Thompson (JAM). The reigning World Champions are Noah Lyles (USA) and Dina Asher-Smith (GBR).