Bolt sets his first world record during the NYC Diamond League 100m final.
Bolt becomes the first sprinter since 1984 to break both the 100m and 200m records at the same Olympics.
Barriers are broken as 22-year old Bolt races to a new world record of 9.58 seconds.
After a false start in the 100m qualifier, Bolt explodes out of the blocks to victories in the 200m final an the 4x100m relay.
Usain wins three gold medals and celebrates a new world record during the 4x100 team relay.
"I've told you guys. When it matters, I always show up… and I won so that's the key thing."