Richard Kilty: "We ran our hearts out. We all have trust in each other, we are proud of each other and there is not much more I can say."

Harry Aikines-Aryeetey: "What you saw were four guys putting their heart on the line."

James Ellington: "We know we were in great shape. We can talk about lanes or whatever but we have not shown our potential. It is disappointing we had the capability of winning it.

Adam Gemili: "They are a great team. It is a real shame especially for me after yesterday. I got back in the village at 1:30am and everyone was up waiting for me, we have such a great team and team spirit. We are disappointed not to win a medal, we know we are capable of it."

Just get the baton to Usain... that was their job and they did it.

Philip: It's not lane 1 that's the issue for #GBR, external, it's more that we don't have anyone who can consistently run under 10 seconds

 Tinashe: Why are you complaining about lane one was I the only one watching the USA women win their relay from LANE ONE?

The Jamaican four are dancing along the back straight as Usain Bolt is draped in the Brazilian flag. Soak it up Bolt, that was your last ever run at the Olympic Games. 

Lee Ferguson: Usain Bolt has done the triple triple an absolutely incredible achievement history is made we may never see his like again   

Johnny Magrino: As good as that was for Bolt & Jamaica, what a phenomenal result for Japan. Who predicted that?! Incredible scenes.  

Image source, Reuters

Steve Cram
BBC athletics commentator on BBC One

They should proclaim him the eighth wonder of the world.

Image source, re

Michael Johnson
Four-time Olympic gold medallist athlete on BBC One

This was an incredible race. USA were in it. Japan were in it. Jamaica just had to get it round to Usain Bolt. Nobody expected this. He had to chase the Japanese team but Bolt - flawless. All gold. No silvers. No bronze. A fantastic performance at these championships.

Image source, Reuters

Colin Jackson
Two-time world 110m hurdles champion on BBC TV

Usain Bolt is just too good. Once he got that baton he had to ease himself past Japan and once he got in his stride nobody was going to catch him. An incredible man, a wonderful athlete and we are all incredibly pleased you have done what you have done

I have to agree with that. An honour and a privilege to call the great man home. What will track and field do without Usain Bolt?

Steve Cram
BBC athletics commentator on BBC TV

He has done it. History, history, history. Usain Bolt - the greatest ever. We are all privileged to have been here throughout his career and watched his Olympic performances.

Tom Fordyce
Chief sports writer in Rio

The triple Triple, the perfect ending for a peerless sprinter. Bolt signs off in the style that has defined him over these past unstoppable eight years.

Japan looked good in their semi but my word that was some run. The gold medal was on until Usain Bolt took over!

Adam Gemili looks gutted but it's no fourth place for him this time - GB ended up in sixth. 

Away first time!

Steve Cram
BBC athletics commentator on BBC TV

The triple triple beckons for Usain Bolt - the end of his Olympic career and what a career, but can someone come and spoil the party? This has all the hallmarks of a classic.

Carl Lewis has nine athletics gold medals at the Olympics. Usain Bolt could be 37 seconds away from another...

He prowls away on his mark, 300m away from number one runner Asafa Powell. 

Here they come! The men's 4x100m runners are announced into the stadium.

The Canada four pull off a synchronised dance move, China just walk past, Japan go for a samurai sword mime, Jamaica go for an X-Factor point a the camera.

GB? Team fist bumps.