Usain Bolt wins 100m Olympic gold again

Usain Bolt claimed the gold medal in the men's 100m for the second successive Olympic Games this evening, setting a new Olympic record in the process.

Despite only getting off to a reasonable start, 25-year-old Bolt soon got into his stride and hit the front with 50m of the race run.

He eventually crossed the line in a time of 9.63 seconds.

Bolt's compatriot Yohan Blake took silver in 9.75 seconds, which equalled his personal best time.

Bronze went to the 2004 champion Justin Gatlin of the United States.

Men's 100m result

Usain Bolt: 9.63s Yohan Blake: 9.75s Justin Gatlin: 9.79s Tyson Gay: 9.80s Ryan Bailey: 9.88s Churandy Martina: 9.94s Richard Thompson: 9.98s Asafa Powell: 11.99s