ZHENGZHOU - China's star swimmer Ye Shiwen continued her winning track at the Swimming National Championships as she won the 200-meter backstroke and Olympic champion Jiao Liuyang got a silver medal in 50m butterfly on Sunday.

Ye, 17, winner of the 200m and 400m individual medley events at the London Olympic Games, took part in lots of events at the National Championships and claimed the 200m free and 200m medley titles in the previous races.

Ye trailed her Zhejiang teammate Fu Yuanhui in the first 100m and made a strong sprint after the 150m turn to win the race in 2:09.12. Fu placed second in 2:10.01, while Bai Anqi, also from Zhejiang, ranked third in 2:11.76.

"I expected a better time according to my performance in the semifinal," said Ye, who topped the semi on Saturday. "But to win is good."

Although she won the 200m back, Ye said she had no intention to take it as her major event.

"I've never thought about it and I already have the 200m and 400m medley," she said. "Competing with Fu is very happy."

Jiao Liuyang, the London Olympic Champion of 200m butterfly, placed second in the 50m butterfly. Lu Ying, the silver medal owner of 100m butterfly in London Olympic Games, won the 50m butterfly and Liu Lan from Army placed third on Sunday.

In men' s 50m freestyle, Ning Zetao from navy won the title in 22.41 seconds which was his second gold at the Swimming National Championships. Lv Zhiwu from Zhejiang and Ban Bao from Liaoning placed second and third in 22.61 seconds and 22.71seconds respectively.

In men' s 100m butterfly, Zhou Jiawei from Guangdong won the title in 52.11 seconds. Shifeng from Shanghai and Zhang Qibin from Shandong finished second and third in 52.64 seconds and 52.71 seconds.

In women' s 800m freestyle, Xu Danlu from Ningxia won the champion in 8 minutes 25.09 seconds. Shao Yiwen from Zhejiang and Xin Xin from Shandong placed second and third in 8 minutes 29.14 seconds and 8 minutes 34.21 seconds.

In women' s 4 * 100 medley, Shanghai team won the champion in 4 minutes 03.50 seconds, Gongdong and Shandong ranked second and third in 4 minutes 04.79 seconds and 4 minutes 05.08 seconds.