TOKYO (REUTERS) - Australia's Ariarne Titmus won her second gold medal at the Tokyo Olympics after defeating American rival Katie Ledecky again to win the women's 200m freestyle on Wednesday (July 28), while Hungary's Kristof Milak powered to the men's 200m butterfly gold.
Titmus won in a time of 1:53.50, coming out ahead of Hong Kong's Siobhan Haughey in second and Canada's Penny Oleksiak in third.
Ledecky, the defending gold medallist and five-time Olympic champion, finished a disappointing fifth, 1.71 seconds behind Titmus.
Once again the 20-year-old Titmus, dubbed "The Terminator", delivered a blistering final lap - she had been in third place at the 150m turn with Haughey in the lead.
Titmus had beaten Ledecky to gold in the 400m freestyle on Monday and she becomes the first Australian woman to complete the 200-400 Olympic double since Shane Gould at the Munich 1972 Games.
"I'm just from a small town in Tasmania and it just goes to show if you believe you can do something, you can 100 per cent do it if you work for it," Titmus told Australia's ABC News.
Titmus and Ledecky are expected to face each other in the 800m freestyle on Saturday in which the American is heavily favoured, and they will also be on opposite sides in the 4x200m relay.
Later on Wednesday, Ledecky won gold in the inaugural's women's 1,500m freestyle.
Ledecky described her determination to succeed and break records as a blessing, and a curse.
The 24-year-old said: "My past performances... it puts pressure on myself, I'm always striving to be my best and be better than I've ever been.
"I'm really tough on myself and I literally approach each race with the belief in myself that I can swim a best time. And that's pretty darn tough."
But she also stressed there was more to life than winning and said she was at peace with her performance in Tokyo, after a run of rare defeats that could end the American's near-decade of freestyle dominance.
She said: "I'm kind of at peace with it, I kind of laugh when I see things like 'settles for silver'.
"I don't want anyone to feel sorry for me or feel like silver or any other medals besides gold is a disappointment.
"I would much rather people be concerned about people who are really, truly struggling in life."
Meanwhile, Milak lived up to his billing as the heavy favourite in the men's 200m fly and won by 2.48 seconds, with Japan's Tomoru Honda in second place and Italy's Federico Burdisso taking bronze.
Australia's Emma McKeon also smashed the women's 100m free Olympic record in the preliminary heats with a personal best time of 52.13 seconds.
She broke the 52.62sec set by Sarah Sjostrom in 4x100m free relay on Sunday.
Hong Kong's Siobhan Haughey, who won silver in the 200m freestyle earlier on Wednesday, was second quickest in 52.70sec ahead of Great Britain's Anna Hopkin and Australia's Cate Campbell.