Team GB have a 10th gold medal at Paris 2024 thanks to a dominant display from the men's eight crew, while further medals have come in windsurfing, dressage and artistic gymnastics.
Sholto Carnegie, Rory Gibbs, Morgan Bolding, Jacob Dawson, Charles Elwes, Tom Digby, James Rudkin, Tom Ford and cox Harry Brightmore took the lead at halfway and held on to defeat the Netherlands by just over a second, with the USA finishing third.
Great Britain's men end the regatta with eight medals – three gold, two silver and three bronze – after only managing two in Tokyo three years ago.
"It was one hell of a ride back at the end of the boat. We knew the start would be close – the American guys giving it a quite a lot of shouting on the start line, which we were ready for," said Brightmore.
"That was a bit of a sprint to the death, we just took it by the scruff of the neck and you can't really ask for much more. These guys, they did it perfectly. I'm really really proud of them. I'm trying to not cry."
In the women's eight, the Team GB claimed bronze after a gripping battle with Canada for second place.
Heidi Long, Rowan McKellar, Holly Dunford, Emily Ford, Lauren Irwin, Eve Stewart, Harriet Taylor, Annie Campbell-Orde, alongside cox Henry Fieldman, fought with Canada for much of the race but were narrowly edged out.
Romania pulled more than four seconds clear in the second half of the 2000m course to claim gold.
After the race, brother and sister Emily and Tom Ford embraced. It is the first time since 1908 that a brother and sister have won medals at the same Olympics for Team GB.
"This medal is more than just us lot standing here and us lot in the boat," Emily Ford said. "It's the people past and present, our friends and family, all our support network. So thank you for that. Anyone that's got any ambition, go out there and believe in yourself and do it."
Team GB add bronze in windsurfing, dressage, gymnastics
Emma Wilson claimed Great Britain's first sailing medal at the Paris Olympics, winning bronze in the women's windsurfing event.
The 25-year-old was guaranteed a medal after impressing in the opening series and dominated in the early stages of the race off the Marseille coast.
But she was forced to settle for a bronze medal with Italy's Marta Maggetti taking gold and Israel's Sharon Kantor claiming silver.
Carl Hester, Charlotte Fry and Becky Moody later won bronze for Great Britain in the dressage team Grand Prix Special.
The British team qualified in third place behind Germany and Denmark, but took an early lead after Moody scored 76.489 per cent aboard Jagerbomb.
Hester was next up on Fame, slightly bettering Moody's mark with 76.520 per cent, with Charlotte Fry was last to ride for Team GB with Glamourdale.
While she secured a score of 79.483 per cent, it was only good enough for third behind Germany and Denmark.
Elsewhere, Britain claimed a first medal of the Games in artistic gymnastics as Jake Jarman then won bronze on the floor at Bercy Arena.
The 22-year-old went into the final with the highest score in qualifying, but his routine was not quite as clean as that of gold medallist Carlos Edriel Yulo of the Philippines.
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