That's it from here, stay tuned for more updates on the Olympic Games.
Hats off. Usain Bolt.
That is a farewell to the Olympics Games for probably the best athlete to have ever graced the track.
They did the unthinkable beating USA to Silver.
Also, Japan take a bow, that was incredible race for them.
But, that will be the last time we see the great man running with those golden shoes, mesmerising the crowd.
Jamaica with the Gold.Japan with an incredible Silver and USA with Bronze.
BOOOOOOLT. What an incredible race. Usain had a race, but he powered away. Like he always does.
SET...GO.
Will Bolt bow out with a gold?
USA in Lane 3, Jamaica in Lane 4.
The Athletes are on the pitch, the atmosphere at the stadium is electric.
The Olympics won't be the same without this man, so drink in his last few moments at the Games.
A loud cheer in the stadium, as they get a glimpse of the great man himself. Bolt.
De Grasse though, will be running in the final leg for Canada.
The Countdown has began, the big news is it won't be Gatlin vs Bolt in the last leg.
USA have got the Gold, Jamaica have got Silver and Great Britain have got Bronze.
SET...GO for the Women's Relay.
The Women's 4*100m race is about to start, this too, will be most likely be between Jamaica and USA.
The other contenders USA have also gone for experience in the form of Tyson Gay, and then Mike Rodgers, Justin Gatlin, and Trayvon Bromell.
The Teams have been announced, Jamaica have gone with experience of Asafa Powell, then there are the usual suspects, Yohan Blake, Nickel Ashmeade and Usain Bolt.
Big new, USA have been disqualified. Canada have been given Bronze.