During the morning session, Sani Brown broke the CR by winning heat 1 in 10.30 seconds. He repeated the same mark when he won the semi final 2.
In the final event of the first day, the Japanese youngster powered to a new personal best and championships record of 10.28 seconds to win first medal for his country in this championships.
Second day and silver medal for Brazil won Derick Silva, who clocked 10.49 seconds, while Great Britain's Rechmial Miller took bronze with a time of 10.49 seconds.
Boys 100m Final Results World Youth Championships Cali Colombia
|1||Abdul Hakim Sani Brown||JPN||10.28||CR||0.172|
|8||Paulo Andre de Oliveira||BRA||10.83||0.172|