Battling boxer Luke Campbell earned Team GB another gold after a noisy Anglo-Irish tear-up at London 2012.
Campbell, 24, from Hull, overcame Ireland's John Joe Nevin who had to settle for silver in the 56kg bantamweight competition.
Home favourite Campbell was cheered on by a passionate local support - equally matched by followers of Irish traveller Nevin. But it was the Union flags held highest after judges gave the decision 14-11 to Campbell to the delight of the majority of the 10,000 sell-out crowd at the ExCel arena.
Campbell raised his hands in triumph - then burst into tears as the crowd chanted "Campbell! Campbell!"
Both men embraced after the bout, the fighters having resumed their friendly rivalry, with Yorkshireman Campbell, also having Irish roots and his family back in Ireland friends with Nevin's family.
Campbell told BBC1: "It's something I've worked for all my life and I can't believe it's here."
He dismissed the suggestion knowing Nevin so well was to his advantage.
He added: "You can look at it both ways. He knows me really well as well. So we both knew each other.
"He's a top, top fighter, a very tough fighter. It was a very difficult fight, very technical. He's a very strong fighter, strong at punching so I had to be aware of that.
"I had to be on my game to win and tonight I was on my game. I can't believe it, I appreciate all the support here and back home in Hull."