For the third straight Olympics, Usain Bolt swept the 100 and 200 meters. He already was the only man to win both back to back, and now he's threepeated.



He ran 19.78 in a dominant performance in the 200 final tonight. Canadian Andre De Grasse was second and Frenchman Christophe Lemaitre was third. American LaShawn Merritt was sixth.

Results:
1. 19.78 Usain Bolt (JAM)
2. 20.02 Andre De Grasse (CAN)
3. 20.12 Christophe Lemaitre (FRA)
4. 20.12 Adam Gemili (GBR)
5. 20.13 Churandy Martina (NED)
6. 20.19 LaShawn Merritt (USA)
7. 20.23 Alonso Edward (PAN)
8. 20.43 Ramil Guliyev (TUR)

Bolt didn't celebrate early like he did in the 100m, but he was every bit as dominant as ever.



Jason Getz - USA Today Sports

The margin from Bolt to De Grasse in second--0.24 seconds--was the same as the margin from De Grasse to seventh place. Bolt now has eight Olympic gold medals, with the 4x100m final at 9:35 tomorrow night. If he wins gold in that race, he'll be tied with Carl Lewis for the most Olympic track and field golds of all time. He'd also be tied with Lewis and three other athletes for the second most gold medals in Olympic history across all sports. Michael Phelps has 23.



John David Mercer - USA Today Sports