Single sculls gold
Rower Kim Brennan has won Australia's first Olympic gold medal in rowing in eight years in the women's single sculls event.
She led by 3.72 seconds at the halfway mark of the event, and crossed the line a boat length ahead of her nearest competition, American Genevra Stone.
Kim Brennan's husband, Scott Brennan, was the last Australian to win Olympic rowing gold.
Individual disappointment, but relay podiums on the last night of swimming
Cate Campbell has finished fifth and sister Bronte seventh in the final of the women's 50 metres freestyle, off the back of a disappointing performance in the 100 metres earlier in the meet.
Cate isn't mincing words in describing her meet, but the sisters are getting support for the way they've publically handled disappointment.
Cate Campbell did swim a good final 100 metres in the women's 4x100 metres medley relay, though.
Australia finished second behind the United States...pipping Denmark to silver by 0.01 seconds.
The men's 4x100 metres medley relay won bronze behind the United States and Great Britain.
It was Michael Phelps' fifth gold medal of these games, and his 23rd, and quite possibly last, overall.
Italian Gregorio Paltrinieri won gold in the men's 1500 metres freestyle. Australian Mack Horton finished fifth.
Overall, Australia won the same amount of medals in swimming this Olympics as the much-maligned London campaign four years ago (10). But there were three golds, four silvers, and three bronzes this time, as opposed to one gold, six silvers, and three bronzes in 2012.
Only the US (33) won more medals in swimming in these Olympics than Australia.
Meares makes history
Anna Meares has won the bronze medal in the women's keirin.
Dutch rider Elis Ligtee won gold, while Great Britain's Rebecca James won silver.
It comes after Meares and Stephanie Morton was narrowly pipped for bronze yesterday in the women's team sprint event.
It's Meares' sixth Olympic medal (two gold, one silver, and now three bronze), which makes her Australia's most successful Olympic cyclist.
She's also the first Australian athlete to win a medal at four consecutive Olympic Games.
Meanwhile, Australia finished fifth in the women's team pursuit.
Bolt show begins, athletics action
Britain's Mo Farah has successfully defended his gold medal in the men's 10,000 metres.
Jamiaca's Elaine Thompson is the new world's fastest woman, winning the women's 100 metres. Two-time defending champion and fellow Jamaican Shelly-Ann Fraser-Pryce came third.
Jamaican sprinter Usain Bolt has won his men's 100 metres heat in a comparatively leisurely time of 10.07 seconds to qualify for the semi-finals.
The world's best-known runner is looking to defend his 100 metres-200 metres-relay treble from both London 2012 and Beijing 2008.
Elsewhere in the track and field, Ethiopian Etenesh Diro finished her heat in the women's steeplechase, despite losing a shoe during the race.
She's qualified for the final on Tuesday (AEST) after lodging a protest.
Australians Genevieve LaCaze and Madeleine Hills have also qualified.
More Australian medals on the horizon?
Marcus Fraser is at nine-under par with one round to go in the golf, putting him in medal contention.
In sailing, Tom Burton has secured a medal. Tuesday's (AEST) race will determine what colour it will be.
In basketball, Australia's women's team, the Opals. will progress to the quarter-finals undefeated.
They've gone a perfect five wins from five matches in group play after a 74-66 win over Belarus, Liz Cambage starring with 17 points and 9 rebounds.
Fabrice Lapierre and Henry Frayne made today's long jump final. Lapierre fouled out, Frayne finished seventh.
Maddison Keeney and Esther Qin have made the 3 metre springboard diving final.
And Matthew Glaetzer will ride off for bronze tomorrow morning (Monday 6:04am AEST) in the men's sprint cycling.
Tennis upsets
Monica Puig has surprised Germany's Angelique Kerber to win Puerto Rico's first-ever Olympic gold medal.
She won the women's singles final 6-4, 4-6, 6-1.
Argentina's Juan Martin del Potro has knocked out Rafael Nadal in the men's semi-finals.
He'll play Britain's Andy Murray in the final.
