It was another good day for Japan, China, and the United States on the 12th day of the Rio Olympics as each country asserted dominance in their favored sports on August 17.
Russia's Darya Klishina competes in the women's long-jump final.
Third-placed Kristi Castlin (left to right), first-placed Brianna Rollins, and second-placed Nia Ali of the United States stand together after the women's 100-meter hurdles final.
Laura Ludwig of Germany competes in the women's beach-volleyball final against Brazil, which Germany won.
Kazakhstan's Daniyar Yeleussinov defeated Uzbekistan's Shakhram Giyasov to win the welterweight Olympic title, racking up Kazakhstan's fourth consecutive gold medal in the event.
Elaine Thompson of Jamaica (3rd left) runs to win the gold in the women's 200-meter final, ahead of silver-medalist Dafne Schippers of the Netherlands (3rd right) and bronzemedalist Tori Bowie of the United States (center).
Japan swept the gold medals on the first day of the Olympic women's wrestling tournament. Kaori Icho (right) became the first wrestler in Olympic history to win four gold medals, beating Russia's Valeria Koblova Zholobova 3-2 in the 58-kilogram women's freestyle.
A Russian boxer was taken out of the arena in a wheelchair amid agony and tears after she injured her arm in a Rio Olympic semifinal bout. With one minute left of the first round against France's Estelle Mossely, Anastasia Belyakova, 23, threw a punch at an awkward angle with her left hand and then immediately cried out in pain and stopped.
Patimat Abakarova of Azerbaijan celebrates after winning the women's taekwondo 49-kilogram bronze-medal bout.
Athletes compete in the men's decathlon 100-meter final.
Seyed Mohammad Mousavi Eraghi of Iran competes in the men's hammer-throw qualifying round.
Eri Tosaka of Japan (left) and Maria Stadnik of Azerbaijan compete in the women's wrestling freestyle 48-kilogram final.
China continued to dominate the Olympic diving events, while it swept the table-tennis tournament, taking home every gold medal for the third Olympics in a row. Ma Long of China plays against Koki Niwa of Japan in the gold-medal match.
Andre de Grasse (left) of Canada and Usain Bolt of Jamaica react after competing during the men's 200-meter semifinals.