Vladislav Grinev of Russia reacts after the men's 50m freestyle final of swimming at the 7th International Military Sports Council (CISM) Military World Games in Wuhan, capital of central China's Hubei Province, Oct. 19, 2019. (Xinhua/Chen Yehua)

Vladislav Grinev (L) of Russia and He Junyi of China reacts after the men's 50m freestyle final of swimming at the 7th International Military Sports Council (CISM) Military World Games in Wuhan, capital of central China's Hubei Province, Oct. 19, 2019. (Xinhua/Chen Yehua)

Anton Chupkov (C) of Russia celebrates after the men's 100m Breaststroke final of swimming at the 7th International Military Sports Council (CISM) Military World Games in Wuhan, capital of central China's Hubei Province, Oct. 19, 2019. (Xinhua/Cheng Min)

Yan Zibei (L) of China shakes hands with Anton Chupkov of Russia after the men's 100m Breaststroke final of swimming at the 7th International Military Sports Council (CISM) Military World Games in Wuhan, capital of central China's Hubei Province, Oct. 19, 2019. (Xinhua/Cheng Min)

Fantine Lesaffre (R) of France competes during the women's 400m individual medley final of swimming at the 7th International Military Sports Council (CISM) Military World Games in Wuhan, capital of central China's Hubei Province, Oct. 19, 2019. (Xinhua/Chen Yehua)

Fantine Lesaffre of France competes during the women's 400m individual medley final of swimming at the 7th International Military Sports Council (CISM) Military World Games in Wuhan, capital of central China's Hubei Province, Oct. 19, 2019. (Xinhua/Cheng Min)

Fantine Lesaffre of France competes during the women's 400m individual medley final of swimming at the 7th International Military Sports Council (CISM) Military World Games in Wuhan, capital of central China's Hubei Province, Oct. 19, 2019. (Xinhua/Cheng Min)

Fantine Lesaffre of France competes during the women's 400m individual medley final of swimming at the 7th International Military Sports Council (CISM) Military World Games in Wuhan, capital of central China's Hubei Province, Oct. 19, 2019. (Xinhua/Cheng Min)

Fantine Lesaffre of France competes during the women's 400m individual medley final of swimming at the 7th International Military Sports Council (CISM) Military World Games in Wuhan, capital of central China's Hubei Province, Oct. 19, 2019. (Xinhua/Cheng Min)

Li Guangyuan of China competes during the men's 100m backstroke final of swimming at the 7th International Military Sports Council (CISM) Military World Games in Wuhan, capital of central China's Hubei Province, Oct. 19, 2019. Li Guangyuan won the gold medal. (Xinhua/Cheng Min)

Li Guangyuan of China competes during the men's 100m backstroke final of swimming at the 7th International Military Sports Council (CISM) Military World Games in Wuhan, capital of central China's Hubei Province, Oct. 19, 2019. Li Guangyuan won the gold medal. (Xinhua/Cheng Min)

Li Guangyuan of China competes during the men's 100m backstroke final of swimming at the 7th International Military Sports Council (CISM) Military World Games in Wuhan, capital of central China's Hubei Province, Oct. 19, 2019. Li Guangyuan won the gold medal. (Xinhua/Cheng Min)

Li Guangyuan of China salutes during the awarding ceremony of the men's 100m backstroke final of swimming at the 7th International Military Sports Council (CISM) Military World Games in Wuhan, capital of central China's Hubei Province, Oct. 19, 2019. Li Guangyuan won the gold medal. (Xinhua/Cheng Min)

Zhu Menghui of China competes during the women's 50m freestyle final of swimming at the 7th International Military Sports Council (CISM) Military World Games in Wuhan, capital of central China's Hubei Province, Oct. 19, 2019. Zhu Menghui won the gold medal with 25.01 seconds. (Xinhua/Cheng Min)

Zhu Menghui of China attends the awarding ceremony of the women's 50m freestyle final of swimming at the 7th International Military Sports Council (CISM) Military World Games in Wuhan, capital of central China's Hubei Province, Oct. 19, 2019. Zhu Menghui won the gold medal with 25.01 seconds. (Xinhua/Cheng Min)

Zhu Menghui (L) of China celebrates with her teamate Zhang Yufei after the women's 50m freestyle final of swimming at the 7th International Military Sports Council (CISM) Military World Games in Wuhan, capital of central China's Hubei Province, Oct. 19, 2019. Zhu Menghui won the gold medal with 25.01 seconds. (Xinhua/Cheng Min)