Sun Yang qualified fastest for the men's 200m freestyle final at the Rio Olympics, easily winning his semifinal on Sunday.
Long Qingquan of China wins the men's 56kg category of the Rio 2016 Olympic Games Weightlifting events.
The 25-year-old Zhang Mengxue won China's first gold at the Rio Olympics by claiming the women's 10m air pistol title here on Sunday.
Zhang Mengxue wins China's 1st gold medal at Rio Olympics
China was the top qualifier with a total score of 270.461 points after the artistic gymnastics men's team qualification at the 2016 Rio Olympic Games in Rio de Janeiro, Brazil.
China finished the first full competition day of the Rio Olympic Games without a gold medal while Vietnam made history by taking its first ever Olympic gold in shooting on Saturday.
Chinese women's football team defeated South Africa 2-0 on Saturday in their second game at the Rio Olympics.
Mack Horton clinched Australia's first gold medal of the Rio Olympics by upsetting favorite Sun Yang of China in the men's 400m freestyle final on Saturday.
Three-time Olympic women's doubles champions Serena and Venus Williams crashed out of the Rio Games tournament in the first round on Sunday as the American sisters' unbeaten run dating back to Sydney 2000 came to a surprising end.
The United States has assigned more than 1,000 spies to protect the Rio Olympics, US media reported.