Gold: Usain Bolt, Jamaica Silver: Yohan Blake, Jamaica Bronze: Justin Gatlin, USA Usain Bolt won a blistering 100-meter dash with a new Olympics record time of 9.63. This is just off his world record time of 9.58. Bolt wasn't the only one going fast. His teammate Yohan Blake set a personal best with a time of 9.75. He was followed closely by USA's Justing Gatlin, who also scored a personal best with a time of 9.79. Seven of the eight runners were under 10 seconds.