The reigning 400m Olympic Gold Medalist who returned last season from a doping suspension emerging as the 2011 World Silver Medalist seeks to return to the top of his event and repeat as the 400m Olympic Gold Medalist in 2012.
World Championships 2011 400m SILVER
World Championships 2009 400m GOLD
World Championships 2007 400m SILVER
World Championships 2011 4x400m GOLD
World Championships 2009 4x400m GOLD
World Championships 2007 4x400m GOLD
PB 43.75 8/21/08 Beijing National Stadium
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| DATE | RACE | EVENT | TIME | PLACE |
| 2/11/12 | Millrose Games | 500m | 1:01.39 | 1st | |
| 4/28/12 | Penn Relays (44.8) | 4x400m | 3:00.15 | 1st | |
| 5/1/12 | Meeting International Region Guadeloupe | 400m | 44.73 | 1st | |
| 5/5/12 | St. Martin International Meeting | 200m | 20.16 | 1st | |
| 5/11/12 | Diamond League - Doha | 400m | 44.19 MR | 1st | |
| 5/25/12 | Ostrava Golden Spike | 400m | 45.13 | 1st | |
| 6/2/12 | PreFontaine Classic | 400m | 44.91 | 1st | |
| 6/22/12 | U.S. Olympic Trials (prelim) | 400m | 45.36 | 1st | |
| 6/23/12 | U.S. Olympic Trials (semi) | 400m | 44.78 | 1st | |
| 6/24/12 | U.S. Olympic Trials (final) | 400m | 44.12 | 1st |  |
| 7/10/12 | Meeting International Sotteville Les Rouen | 400m | 45.51 | 1st | |
| 7/20/12 | Herculis Meeting - Monaco -DL | 400m | DNF | ||
| 8/4/12 | Olympic Games (Round 1 - Heat 6) | 400m | DNF |
