The best moments from Day 8 of Rio 2016

Australian rower Kim Brennan claimed Australia's first rowing gold medal since Beijing, winning the women's single sculls.

Jamaican sprint superstar Usain Bolt cruised through the first round of the men's 100m.

Unbeaten in the two years before the Olympics, world champion and firm favourite, Kim Brennan lived up to all the expectation to win a commanding Olympic gold medal.

Embarrassed Rio officials have made the "radical" decision to drain an Olympic pool and refill it before the synchronised swimming after it turned green.

Australian underdog Marcus Fraser scrapped hard to remain in the thick of the medal hunt heading into the final round.

Rafael Nadal's bid for a second Olympic singles gold medal ended with a thrill-a-minute semi-final loss to the resurgent Juan Martin del Potro.

Diver Maddison Keeney says the Rio diving pool was more gross than ever as she qualified for the 3m springboard final.

Anna Meares won a historic bronze medal in the keirin, making her the most decorated Australian cyclist in Olympic history.

Monica Puig is Puerto Rico's first-ever gold medal winner, beating Australian Open champion Angelique Kerber in the women's tennis final.

The Hockeyroos beat Japan 2-0 in their final pool game before the quarter-finals.