Jamaica swept the 200m final on Thursday with Usain Bolt winning 19.32 seconds to become the first man with two Olympic titles at that distance.
Bolt beat compatriot and training partners Yohan Blake 19.44 seconds, and Warren Weir, who did a personal best 19.84 seconds, to make it a 1-2-3 sweep for Jamaica.
The 25-year-old Bolt won the 100 on Sunday and now has five Olympic golds — a number he celebrated by hitting the ground and doing five push-ups a few meters past the finish line.
The three will try to add to their tally on Friday in the 4 x 100 relay, which would make it 6-for-6 for Bolt at the Olympics.
The last country to sweep the 200 was the United States in 2004.