During the competition Adam Peaty won Team GB's first gold medal of the Games and became the first British swimmer to successfully defend an Olympic title, winning the men's 100 m breaststroke. In the men's 200 m freestyle Tom Dean won the gold medal with teammate Duncan Scott taking silver, the first time since 1908 that two male British swimmers had won medals in the same event. Dean then won a second gold medal, alongside Scott, James Guy and Matt Richards as Great Britain won the 4 × 200 m freestyle relay.