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**MEDAL COUNT** 160807100453-rio-olympics-swimming-hosszu-super-169
Katinka Hosszu won the women's 400m individual medley final.
It was a day of world records in the pool, with both Hungary's Katinka Hosszu and Adam Peaty of Britain lowering best times.
Hosszu shattered the women's 400m medley milestone mark of 4:28.3 -- set by China's Ye Shiwen -- knocking more than two seconds off the time to win gold by almost five seconds over America Maya Dirado, with Spain's Mireia Belmonte Garcia completing the podium.
Nicknamed "The Iron Lady," Hosszu had considered quitting after a disappointing London 2012, admitting to suffering depression. But the 27-year-old has dominated the medley events ever since and looks like to strike further gold in Rio, with four more individual events
Hosszu's gold took Hungary's tally in Olympic history to 169, the most ever won by a nation never to have hosted the Games.
Peaty broke his own world record in the 100m backstroke heats (57.55) and could have lowered that time still further in the semifinal but eased off at the end. He looks a banker for gold now having beaten the rest of the field by 1.5 seconds.
The night's final race -- the women's 4x100m freestyle -- was a one-sided battle between Australia and the United States.
Not even having one of the dominant forces of women's swimming on the final leg, Katie Ledecky, could claw back the deficit as the Australian quartet of sisters Cate and Bronte Campbell, Emma McKeon and Brittany Elmslie broke the world record to win gold.
http://edition.cnn.com/2016/08/06/sport/horton-yang-swimming-rio-olympics-day-one/index.html