- Katie Ledecky won her third gold medal of the Rio Olympics, leading the United States to victory in the women's 4x200 metre freestyle relay.
- Australian teenager Kyle Chalmers also starred in the pool, coming from seventh at the turn to win the men's 100m freestyle.
- Kristin Armstrong took gold in the women's individual time trial, winning her third successive Olympic gold, while Fabian Cancellara won the men's time trial by more than 47 seconds.
- Brazil finally got going in men's football, crushing Denmark 4-0 for their first win to reach the quarter-finals. Defending champions Mexico and Argentina were knocked out.
- New Zealand were knocked out by Fiji in the last eight of the men's rugby sevens, with Japan, Great Britain and South Africa also in the semi-finals.
- Carmelo Anthony and his 31 points led the United States to a hard-fought win over Australia in the men's basketball.
- Kohei Uchimura racked up his eighth consecutive major gymnastics title after retaining his Olympic crown in the all-around final.
QUOTES OF THE DAY
"In two days when we play Spain we will give it our heart, our brain and our balls, we will give it everything," - French water polo player Ugo Crousillat ready to give his all.
"A giant wave hit me pretty hard but you have to play the hand you are dealt with," - American Nathan Adrian explaining his third-place finish in the 100m freestyle.
"I use hypnosis in my preparation. Did it work today? No, as you can see," - said German Marco Koch, who finished seventh in the men's 200m breaststroke final.
"Everybody knows these names, but Kohei Uchimura, who is this man? I don't think I am well-known in the world. I hope that people in the world enjoyed watching us and watching gymnastics. Not my name, but gymnastics, which should be as swimming is with [Michael] Phelps and athletics is with Usain Bolt," - Uchimura unsure about the comparisons to a couple of the world's most famous athletes.
Ding Ning claimed a thrilling win for her first individual Olympics gold medal, taking out the women's singles.
Ding beat Li Xiaoxia, who won the encounter between the pair in the London 2012, decider, 11-9 5-11 14-12 9-11 8-11 11-7 11-7.
"I'm so excited, I can't believe I did it, I don't know how to explain my feelings right now," Ding said.
"I don't think it is possible to compare each game, but I feel like I am a lot more mature than four years ago. This is a very tough competition, and I think Li and I both did very well."
The United States top the medal table with 11 golds and more to come, but Great Britain were the big movers. Joe Clarke (kayak (K1) men) and divers Chris Mears and Jack Laugher (men's synchronised 3m springboard) were the gold medallists as GB took their tally to three.
COMING UP: Phelps and Lochte set for battle
Phelps has already brought up Games golds numbers 19, 20 and 21, and he may yet add to that in the men's 200m individual medley. But he will need to overcome countryman Ryan Lochte in what is one of four golds up for grabs in the pool. The men's rugby sevens gold will be decided, while the men's team sprint finals are also on.
French gymnast Samir Ait Said suffered one of the more gruesome injuries of the Games with his broken leg.
However, he was unfortunately joined on that list by Armenian weightlifter Andranik Karapetyan.
During the men's 77kg, Karapetyan attempted a lift and saw his left elbow give away, leaving him in agony.