Bolt retains 100m Olympics gold

Usain Bolt, who set the track world on fire four years ago with a dominant performance in Beijing, has won the 100m race of the London Olympic Games on Sunday.

The Jamaican world record holder and defending Olympic champion, exploded down the track at London’s Olympic Stadium to win with the time of 9.63 seconds.

The time broke his Olympic record set in Beijing (9.69) and was just .05 off the world record of 9.58 he set in 2009.

During introductions, Bolt made a series of hand gestures, then smiled. Yohan Blake, Bolt’s training partner and world champion from last year, was second in 9.75 seconds.

Team USA’s Justin Gatlin, the 2004 Olympic champion who served a four-year doping suspension ending in 2010, earned the bronze with a time of 9.79.