| 1 | A | B | C | D | E | F |
| --- | --- | --- | --- | --- | --- | --- |
| 2 | Walter Dix - Major competition record |  |  |  |  |  |
| 3 | Year | Competition | Venue | Position | Event | Notes |
| 4 | 2008 | Olympic Games | Beijing, China | 3rd | 100 m | 9.91 |
| 5 | 2008 | Olympic Games | Beijing, China | 3rd | 200 m | 19.96 |
| 6 | 2011 | World Championships | Daegu, South Korea | 2nd | 100 m | 10.08 |
| 7 | 2011 | World Championships | Daegu, South Korea | 2nd | 200 m | 19.70 |

Question: Who won silver medals in both the 100 and 200 m at the 2011 World Championships?
Answer: Walter Dix won silver medals in both the 100 and 200 m at the 2011 World Championships.