Great Britain claimed its first gold medal at Rio 2016 courtesy of Adam Peaty, who again shattered his 100 metre breaststroke world record.
Adam Peaty lived up to his billing as the overwhelming favourite for the men's 100 metre breaststroke at Rio 2016, again lowering his own world record to claim a dominant victory in Sunday's final.
Already the World, European and Commonwealth champion in the event, Peaty gave notice of his form on Saturday by taking almost four tenths off the world record he already held.
And the Briton produced an even better display when it mattered most, his time of 57.13 seconds enough to earn gold by more than one and a half seconds from Cameron van der Burgh (South Africa) and Cody Miller (United States).
Peaty's new record time is a whopping 0.79secs quicker than the mark he set prior to the Games.
After becoming Great Britain's first medallist of the Games, Peaty told BBC Sport: "It's so surreal, to get Team GB's first gold.
"This is a product of seven years of work. I came out tonight, [the plan was to] take that first 50 easy then come back with everything I've got.
"It means so much to me."