If you're a fan of dominance -- seeing athletes at the absolute peak of their sport -- then Sunday was a great day.
Usain Bolt and Simone Biles, two of the most dominant athletes the Olympics has ever seen, both put their talents on display for the world to see.
Here are some takeaways from an action-filled Day 9 of the 2016 Rio Olympics.
Three down, two to go
Simone Biles came to Rio de Janeiro with a chance to win five gold medals. After Sunday's performance in the vault final, she's more than halfway there. Biles absolutely dominated her competitors en route to her third gold medal of the games. She became the first U.S. woman to win three gymnastics gold medals in a single Olympics -- and she could win two more.
Bolt still a blur
After coasting to victory in the semifinal race earlier in the night, Usain Bolt took a while to get going in the final. But in what seemed like an instant, Bolt caught up to -- and then passed -- American Justin Gatlin to win the 100-meters for the third straight Olympics. No other sprinter has achieved the feat.
South African runner Wayde van Niekerk surprised the track world by destroying Michael Johnson's former world record in the 400-meters. Van Niekerk ran a 43.03, easily eclipsing the previous record of 43.18, from lane 8. No runner had ever won the 400-meters from lane 8 in the Olympics or any other major event.
Danger in Rio
Ryan Lochte and three other U.S. swimmers confirmed that they were robbed at gun point in Rio de Janeiro early Sunday night. Their taxi was stopped by individuals posing as police officers, who demanded the athletes' money and personal belongings. Fortunately nobody was harmed in the incident.
Welcome back, golf
The first Olympic golf tournament in over a century came to an end on Sunday, as Great Britain's Justin Rose took home the gold medal. Sweden's Henrik Stenson took silver while American Matt Kuchar won the bronze.
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