A top US swim coach has labelled an incredible gold medal swim by Chinese teenager Ye Shiwen "disturbing'', prompting her father to brand the Western media "arrogant and suspicious of Chinese people''.
The sixteen-year-old's form has led to speculation over whether or not her record breaking speed was being aided by doping.
Earlier in the week, Ye, who was not a medal favourite prior to the London Olympic Games, won the gold and set a world record in the gruelling 400m individual medley.
Her time of 4 minutes, 28.3 seconds beat the world record by more than a second and her previous best by 5 seconds.
Her final length of 28.93 seconds topped Ryan Lochte, 27, of USA, who swam the last length in 29.1 seconds in his gold medal winning race in the men's 400 individual medley. His overall time was 4min, 5.18 seconds.
Yesterday, Ye won a second gold in the 200 metres individual medley final. She was third when they turned for home but overhauled her rivals to win the multi-discipline event in two minutes, 07.57 seconds.
Ye's father, Ye Qingsong, told Chinese news portal Tencent his daughter's win was the result of hard work and guidance from Chinese coaches.
"A lot of different people had to provide all kinds of help for this result to be possible.''
He conceded it was "normal for people to be suspicious" but said: "The western media has always been arrogant, and suspicious of Chinese people."
Jiang Zhixue, head of anti-doping work at China's General Administration of Sport, said it was not proper to single out Chinese swimmers after they produced good results.
"Some people are just biased," he said to news agency Xinhua.
"We never questioned Michael Phelps when he bagged eight gold medals in Beijing."
The controversy around the teen's stunning form was stoked when top swimming coach, John Leonard, told The Guardian newspaper her performance was "suspicious''.
Leonard, who is executive director of the World Swimming Coaches Association, said the 16-year-old looked like a superwoman.
"Any time someone has looked like superwoman in the history of our sport they have later been found guilty of doping."
"We want to be very careful about calling it doping," he said. "The one thing I will say is that history in our sport will tell you that every time we see something, and I will put quotation marks around this, 'unbelievable', history shows us that it turns out later on there was doping involved. That last 100m was reminiscent of some old East German swimmers, for people who have been around a while. It was reminiscent of the 400m individual medley by a young Irish woman in Atlanta."
"I have been around swimming for four-and-a-half decades now. If you have been around swimming you know when something has been done that just isn't right. I have heard commentators saying 'well she is 16, and at that age amazing things happen'. Well yes, but not that amazing. I am sorry."
"No coach that I spoke to yesterday could ever recall seeing anything remotely like that in a world level competition. Where someone could out-split one of the fastest male swimmers in the world, and beat the woman ahead of her by three-and-a-half body lengths. All those things, I think, legitimately call that swim into question."
It was not racist to say the Chinese had a doping history, he told the newspaper.
"That is just history. That's fact. Does that make us suspicious? Of course. You have to question any outrageous performance, and that is an outrageous performance, unprecedented in any way, shape or form in the history of our sport. It by itself, regardless of whether she was Chinese, Lithuanian, Kenyan, or anything else, is impossible. Sorry."
Ye has denied any wrongdoing and Olympic officials hinted her test results from the 400 came up clean.
"We would only comment if we had any adverse finding," IOC spokesman Mark Adams said earlier. "I am not commenting, so you can draw your own conclusions.''
- Fairfax NZ and Reuters
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