Alistair Brownlee and Jade Jones successfully defended their Olympic titles in triathlon and taekwondo, while Hannah Mills and Saskia Clark finally clinched Olympic victory on day of the Games to take Great Britain's gold medal tally at Rio 2016 to 22.
Alistair's younger brother Jonny completed a Brownlee one-two in the triathlon, winning a silver medal. Liam Heath and Jon Schofield added a silver in the men's 200m kayak double, while Marcus Ellis and Chris Langridge took a surprise bronze in badminton's men's doubles.
With three days of competition left, Rio 2016 is already Team GB's most successful overseas Games and they are nine medals short of the record 65 medals they secured at London 2012.
Brilliant Brownlee brothers
The dominant Brownlee brothers came home first and second in the men's triathlon to begin the day's gold medal rush. Alistair became the first man to win successive triathlon titles after successfully defending his title from London 2012, while Jonny improved on his bronze medal from four years ago.
Both brothers finished the 1500m swim in the front group before heading a lead group of 10 athletes on the 40km cycle leg of the race. Vincent Luis of France broke clear with the Yorkshiremen at the start of the 10km run, before Alistair's pace dropped both Luis and then his brother as he claimed gold.
Sailing duo win gold, while Jones does it again
Hannah Mills and Saskia Clark were already assured of sailing gold in the women's 470 class, but they were forced to wait 24 hours after their medal race was called off on Wednesday because of light winds. The pair only needed to finish the medal race to win gold, which they did with ease, crossing the line eighth to improve on the silver medal they won in London.
The third gold medal of the day came when Jade Jones successfully defended her -57kg taekwondo title as she landed Team GB's first taekwondo medal at Rio 2016 at the very first opportunity. The 23-year-old completed the defence of her Olympic crown with four dominant performances; including in a 16-7 victory over world number two Eva Calvo Gomez in the final.
Medals in canoeing and badminton
Liam Heath and Jon Schofield went one better than their bronze medal at London 2012 as the pair won silver in the men's K2 200m canoe sprint. Heath and Schofield stormed home to snatch second place from Lithuania by 0.014 seconds, with Spain taking gold.
There was a historic bronze medal for Britain in the men's badminton doubles, where Marcus Ellis and Chris Langridge won their bronze medal play-off. Ellis and Langridge battled past highly-ranked Chinese pair Wei Hong and Biao Chai 21-18, 19-21, 21-10 to win Britain's maiden Olympic men's doubles badminton medal and the first in any event at the Games since Athens in 2004.
More medals on their way...
There was no luck for Great Britain's Adam Gemili as he finished fourth in the men's 200m final after being beaten by 0.003 seconds for the bronze medal. Despite the disappointment for Gemili, more medals are on their way for Team GB with three days of competition left in Rio.
World and defending Olympic champion Nicola Adams booked her spot in the gold medal bout in the flyweight division after coming through a tricky semi-final against three-time world champion Ren Cancan of China after an unanimous decision. Adams will face France's world bronze medallist Sarah Ourahmoune in Saturday's final with the Brit knowing a victory would make her the first woman to win back-to-back Olympic titles.
Britain's women's hockey team are guaranteed a medal on day 14 after reaching their first ever Olympic final and they will play the Netherlands at 21:00 (BST). Super heavyweight boxer Joe Joyce will be hoping to win his semi-final to guarantee at least silver, while Lutalo Muhammad will aim to upgrade the bronze medal he won ay London 2012 in the men's 80kg taekwondo category.