A female runner competing in China's National Games has tested positive for a banned substance, in the third doping scandal to stain the Oct. 16-28 competition.

Wang Jing, winner of the women's 100m race on Thursday, was kicked out of the competition and her results were stripped off, awarding Jiangsu province representative Jiang Lan, silver medalist in the women's 100m, the gold.

It is the third doping case at the Games after Guo Linna, a rower from Henan Province and Li Jie, a shooter from Inner Mongolia were found to haven taken banned substances earlier at the Games.

Wang Jing of Fujian Province dashes to the end point during the final of women's 100m sprint at the 11th Chinese National Games in Jinan, east China's Shandong Province, Oct. 22, 2009.

Elsewhere in athletics, Li Yanxi of Hebei broke the oldest Chinese track field national record as he rewrote the men's 28-year-old triple jump record with 17.59 meters on Monday.

The 25-year-old Li, the 2006 Asian Games champion in Doha, also broke the Asian record of 17.35 set by Kazakhstan's Oleg Sakirkin in 1994.

The national mark of 17.34 was set by legendary Zou Zhenxian at the 3rd Athletics World Cup in Rome in 1981.

In Monday's program, Peng Shuai took central stage of the competition by winning her third gold at Games after partnering Xu Yifan to claim the women's doubles title.

The team from Tianjin were hardly tested by Sichuan's Grand Slam winners Zheng Jie/Yan Zi to secure the gold at 6-4, 6-1.

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