Alaskan teenager Lydia Jacoby upstaged her 2016 Olympic champion teammate Lily King to win a surprise gold medal in the women's 100m breaststroke.
The 17-year-old accelerated over the final 25 metres to push ahead of her two rivals, who had been expected to battle it out for gold.
Meanwhile, Tom Dean claimed a stunning gold and Duncan Scott silver to ensure a British one-two in a thrilling 200m freestyle at the Tokyo Olympics.
In a fast, closely-fought final, Dean touched home just ahead of world number one Scott on his debut Games.
Looking at the Medal Tally, the US is now leading with 8 gold , 3 silver and 8 bronze, Japan is second with 8 gold, 2 silver and 3 bronze while China is third with 7 gold, 5 silver and 7 bronze.
[Source: Reuters/BBC]
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