- David Rudisha made history at the Rio Olympics, becoming the first man since 1964 to go back-to-back in the 800 metres.
- His convincing win was in contrast to Shaunae Miller, who fell over the line to upset Allyson Felix in the women's 400m.
- Brazilian Thiago Braz da Silva stole the show to finish the day, delighting his home fans with a win in the pole vault thanks to an Olympic record.
- Mark Cavendish won silver in the men's omnium, having caused a huge crash that involved gold medallist Elia Viviani.
- Simone Biles stumbled on the balance beam as attempts to win a record five gymnastics golds in a single Olympic Games went up in smoke, leaving her to settle for bronze.
- Two-time 200m champion Veronica Campbell-Brown failed to make it out of the heats, having run in the wrong lane.
QUOTES OF THE DAY
"It is the greatest moment of my career. I dedicate this medal to God," - Rudisha enjoyed his 800m success.
"He received a medal for a football camp last week and he said to me, 'Right dad, I've got my medal, now it's time for you to get yours'," - Justin Rose's son helped inspire him to his historic golf gold.
"A holiday, chocolate, and a mighty strong glass of rum," - Australian cyclist Anna Meares on her plans after Rio 2016.
"Normally I ride to Stevie Wonder titles but suddenly they told me I don't have the rights to use that. I can live without a lawsuit from the Stevie Wonder company," - equestrian rider Patrik Kittel had to make a change.
Mira Potkonen was a shock winner over Katie Taylor in the quarter-finals of the women's light (57-60kg) boxing.
The 35-year-old from Finland edged the defending champion in a tight fight, with a judge who had the bout tied having to decide.
He opted for Potkonen, who said: "It was awesome. I have lost so many times to her, so it's great."
Brazil won their second gold of their home games thanks to Da Silva. Ruth Jebet won Bahrain's first ever - with victory in the women's 3000m steeplechase. The United States are still well clear at the top with 26 golds and 75 medals in total.
COMING UP - Bolt back, Dibaba eyes gold
A busy day at the Games will see 25 gold medals awarded, with five of those coming in athletics. Genzebe Dibaba is expected to be among them with the women's 1500m final to be run, while Usain Bolt is back in action - in the 200m heats.
Another day at Rio, another proposal.
Equestrian rider Charlotte Dujardin confirmed she would marry Dean Golding, who proposed once more.
"He actually asked me just before London, and I said yes," she said.
"But I do not think he has believed it is going to happen, so now he has gone and made it so public that I definitely have got to do it."