Mo Farah became just the second man to win both long distance titles at two separate Olympic Games, adding the 5,000m gold to the 10,000m success from Saturday.
Farah joins Finland’s Lasse Viren in the elite club, storming to victory on the final night of athletics, beating Paul Chelimo into second place, with Hagos Gebrhiwet third.
The 33-year-old was always in control, easing to the front with five laps to go and holding off a last-lap challenge from Ethiopia's Gebrhiwet to storm home and take GB's 27th gold of the Rio 2016 Olympic Games.
“There are no words to really describe it," Farah said.
“Mentally I had to be on top of my game – the guys were out there to get me – so I just had to be alert. You saw me sat at the back, but it wasn’t an easy last five lap burnout. The guys pushed on and on.
“At the beginning I felt a bit tired but I got going again. I went to the front and I know the guys were thinking about me, so I controlled the race. I wasn’t going to let anyone past me. Then just at the end I used my speed."
Teammate Andy Butchart provided great support to Farah, now a four-time Olympic Champion, with the British pair leading the race with four laps to go. The Scot crossed the line sixth.
"In 2017 I’d like to be able to go onto the track in London but after that I’ll go onto the road for a couple of marathons," Farah added, referring to the 2017 World Championships in the capital
“I owe it to the people in London to race at home, but I don’t know which event.”
In the following race, Britain's women's 4x400m relay team pushed Team GB past their London 2012 medal total, with a bronze taking the tally to 66 medals.
Behind the winners USA and silver medallists Jamaica, the race became a battle for bronze. Emily Diamond gave GB the advantage on the third leg and Christine Ohuruogu was able to stay away from her rivals on the last 400m to take the medal in a time of 3:25.88 minutes.
“I’m on cloud nine. Today has been a whirlwind. I’m a bit speechless and have been in tears. My mum’s been in tears. It’s just amazing," said Diamond.
“We came into this knowing we had a shot at bronze. The Americans and Jamaicans are just so far ahead, but we knew bronze was up for grabs.
“Christine gave us a pep talk in the call room telling us to keep composed and not to panic if things aren’t going to plan in the race. And we did that. To come away with a bronze medal is the icing on the cake for the season.”
Elsewhere, 19-year-old Morgan Lake finished 10th in her first Olympic Games high jump final, clearing 1.93m, just a centimetre shy of her personal best. Spain's Ruth Beitia - 18 years older than Lake - took gold with a height of 1.97m.
Lynsey Sharp finished outside of the medals in the women's 800m final but ran a personal best, crossing the line seventh in a race won by Caster Semenya. And Charlie Grice ran to 12th in the men's 1,500m final.