Usain Bolt has won the 100 m title.
Usain Bolt . He is the first person to hold both the 100 metres and 200 metres world records since fully automatic time became mandatory . An eleven-time World Champion , he won consecutive World Championship 100 m , 200 m and 4 × 100 metres relay gold medals from 2009 to 2015 , with the exception of a 100 m false start in 2011 . He is the most successful athlete of the World Championships and was the first athlete to win three titles in both the 100 m and 200 m at the competition .