올림픽- '여제' 바일스, 기계체조 마루서 다시 金…4관왕으로 마무리
In the gymnastics competition, America's golden girl Simone Biles has secured another gold in the floor event and written herself into the history books.
She scored 15-point-nine-six-six,... beating her team mate Alexandra Raisman by almost half-a-point.
The victory makes her the first woman gymnast since 1968 to win four gold medals at a single Olympics.
The other golds came from team, all-round and vault.