In winning the Men's 100m final, and cruising through his first round heat of the 200 metres event today, Usain Bolt is putting his stamp on the 2016 Summer Olympics in Rio.
But the Olympics aren't just about star athletes performing at their peak. Despite the intense competition of the modern games, they're also supposed to be about the sportsmanship and fair play that encapsulate the 'Olympic spirit'.
And, well away from the spotlight surrounding Bolt and co., a truly heartwarming moment in the Women's 5,000m event between two athletes - New Zealand's Nikki Hamblin and Abbey D'Agostino of the United States - produced one of the most memorable moments of the Rio games so far. (Scroll down this article for video footage).
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The incident came after Hamblin and D'Agostino had collided and both fallen to the ground during the heat - putting their Olympic hopes in serious doubt.
After the American had helped the Kiwi athlete to her feet, she herself fell to the ground in serious pain. Hamblin, rather than leave behind her rival in the hope of catching the leading pack, then did something extraordinary - running backwards and stopping to help the Team USA athlete up off of the track.
Although D'Agostino waived Hamblin on due to her severe pain, it was a heartwarming display of sportsmanship.
The American, somehow, did manage to get back up and limp around the final few laps to finish the heat. And who was waiting for her at the finish line? Hamblin.
The pair shared a warm embrace before D'Agostino was ultimately taken off the track in a wheelchair, such was the severity of her injury.
Here's Hamblin explaining just why she chose to do what she did...
In something of a result for people being rewarded for doing good things, Tuesday evening has actually brought positive news for both athletes.
As per Deadspin, both Hamblin and D'Agostino (knee injury permitting) have been awarded places in the 5,000m final, despite finishing in the bottom two, because they were tripped.