Gymnast Max Whitlock won Olympic gold in the men's floor exercise to create British gymnastics history for the second time at Rio 2016.
On Wednesday, the 23-year-old won GB's first all-around gymnastics Olympics medal in 108 years as he took bronze.
Now he has won the nation's first Olympic medal in the men's floor after earning a score of 15.633.
It was GB's 11th gold medal in Brazil, taking the overall tally to 31.
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Whitlock finished ahead of Brazilian pair Diego Hypolito (15.533) and Arthur Mariano (15.433), who took silver and bronze respectively.
Fellow Briton Kristian Thomas finished seventh with a mark of 15.058.
Whitlock has now won four Olympic medals, having claimed two bronzes - in the team event and the pommel horse - at London 2012.
He is also the favourite to win gold in the pommel horse final later on Sunday (19:34 BST), but faces competition from 2012 silver medallist team-mate Louis Smith.
Whitlock won silver at the 2015 World Championships behind Japan's Kenzo Shirai, who was expected to be the man to beat in Brazil.
The Briton, who was the third gymnast to go in Sunday's final, set the standard with a virtually flawless routine.
Whitlock faced an anxious wait to see if he would end up on the podium with five more men still to go.
But he knew by the time 19-year-old Shirai took to the mat for the penultimate routine that he was assured of a medal.
Shirai, aiming to become the first Japanese man to win the event since 1968, produced an error-strewn performance, scoring 15.366 to go fourth.
It meant only American Samuel Mikulak could deny Whitlock gold and, after a tense few moments, the Briton's success was confirmed.
Beth Tweddle, former Commonwealth Games champion and BBC Sport analyst:
"I think it helped Max going so far up in the order. He was then able to just sit back and relax.
"He looked more nervous waiting for the result than he did before his routine.
"We were hoping for a sneaky bronze but where he was brilliant others faltered."
http://m.bbc.co.uk/sport/olympics/36688213
So Whitlock's favourite event the pommel horse is still to come. Hopefully it will be another gold for him