Jamaica 3 USA 0

3 is the number of world records Jamaica's men set in the 100m, 200m and 4x100m relay, but perhaps I could have gone for Jamaica 4 USA 0 given that Jamaica won the men and women's 100m and 200m. The USA may point to their wins in the women and men's 4x400m relays, but then again the latter win wasn't so surprising given that they swept the individual event. It looks as if the era of US sprinting supremacy is well and truly over, roll on 2012.

UN-FLIPPIN-BELIEVABLE!!

Usain Bolt was in the middle of a press conference in Beijing when he was informed that he would be doubling up - his coach had given him the green light to compete in the 100m & 200m. When asked which event he would prefer to win, he said that he really wanted to win the 200m because it would mean so much more. Well tonight we witnessed just how much it meant to him.

He ran 19.30s with eight races in his legs so how much faster could he have gone if he was fresh? And if he decides to take up the 400m, we can probably expect to see the first sub 43s run.

He turns 22 tomorrow and I'm sure he'll celebrate with the youthful exuberance that we saw in the aftermath of his wins.

Wishing you a very happy 22nd birthday and I hope you'll continue to light up the track for many years to come.