Tom Dean and Duncan Scott have won gold and silver respectively for Team GB in the men’s 200m freestyle.
Scott had qualified fastest for the final but it was his teammate Dean who held his form to win the second gold in the pool for Team GB at these games.
The bronze went to Brazil’s Fernando Scheffer.
Dean, who twice contracted coronavirus last year, was third heading into the final 50 metres while Scott was down in sixth at the halfway stage, but the pair finished strongly.
Scott finished 0.04 seconds behind his fellow Brit.
In winning the gold, Dean set a new British record with a time of 1:44:22.
South Korea’s Hwang Sun-woo was under the world record time at the 100m mark but faded badly, ending up seventh, as the British pair powered towards a spectacular finish.
“I knew it was going to be a dogfight, I didn’t know how people were going to swim it, just race the race and that’s how it is,” Dean said.
Dean added that the Olympics seemed a “million miles off” when he was isolating in his flat after contracting COVID-19 twice in 12 months.
“I contracted COVID-19 twice in the last 12 months, I had six or seven weeks out during an Olympic year which is almost unheard of,” he said.
“The first time wasn’t too bad. The second time I did the full isolation period, I wasn’t able to train and it was a slow-build back into training.”
Scott was narrowly above Dean in the rankings coming into the Games and qualified fastest but was delighted for his teammate.
“Just a massive credit to Tom Dean. That was unbelievable. Olympic champion,” he said.
Peaty, who cheered on Dean and Scott, congratulated the pair on Twitter, he said: “Great to see such a force of talent on the team, absolutely sensational.”
“To come along so far in the last 18 months, it’s a pleasure to watch him.
“It’s great to be able to say he’s a good mate out of the pool.”
This result marks the first time two British male swimmers have shared an Olympic podium since London 1908 when Henry Taylor and Tom Battersby won gold and silver in the 1500m freestyle.
Tuesday kicked off to a good start for Team GB, not only in men’s 200m freestyle, but also in the women’s 67kg Taekwondo competition, where Bianca Walkden made it through to the semi-finals.
The three-time world champion took a 17-7 against Kazakhstan’s Cansel Deniz.
In the 50m women’s backstroke, Brit Kathleen Dawson finished in sixth place, with Kaylee McKeown of Australia taking gold and breaking the Olympic record.
In the women’s 200m freestyle semi-final, Brit Freya Anderson missed out on a spot in the final after finishing seventh in her heat.
There was a shock in the women’s 100m, with 17-year-old Lydia Jacoby from the United States taking gold – the first time someone from Alaska has appeared in the Olympics.
Another surprising result was in the tennis, which saw Japan’s Naomi Osaka lose out on a gold medal to former French Open finalist Marketa Vondrousova of the Czech Republic 6-1, 6-4 in the third round of the women’s singles.