Swimming: Golden start for Australia on day of records
By Mark Trevelyan and Alan Baldwin
RIO DE JANEIRO (Reuters) - Hungary's Katinka Hosszu ended her long wait for Olympic victory and Australia captured two gold medals in an exhilarating first day of swimming competition that saw three world records smashed in Rio on Saturday.
Hosszu, five times a world champion but without a medal from three previous Olympics, demolished the world record by 2.07 seconds in the final of the women's 400 meters individual medley.
Australia's women retained their Olympic title by winning the 4x100m freestyle relay in world record time, with sisters Bronte and Cate Campbell swimming the last two stages to overhaul the United States, despite the efforts of Katie Ledecky on the anchor leg.
Mack Horton's victory in the men's 400 freestyle also meant Australia had already doubled their gold medal tally from a disappointing showing four years ago.
The day's record spree began with Britain's Adam Peaty, who broke his own world mark of 57.92 in the heats of the 100 breaststroke when he clocked 57.55.
Tipped to become the first British man to win an Olympic gold since 1988, he then swam 57.62 in the semi-finals.
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