| Athletics |
1996 World Athletics U20 Championships |
Sydney |
 AUS |
400 m Hurdles, Men |
🥉 |
 USA |
|
| Athletics |
1997 Pan American Athletics U20 Championships |
Habana |
 CUB |
400 m Hurdles, Men |
🥇 |
USA |
|
| Athletics |
1997 Pan American Athletics U20 Championships |
Habana |
CUB |
4 x 400 m Relay, Men |
🥇 |
USA |
|
| Athletics |
1998 Goodwill Games |
New York |
USA |
400 m Hurdles, Men |
🥈 |
USA |
|
| Athletics |
1999 World Athletics Championships |
Sevilla |
 ESP |
4 x 400 m Relay, Men |
1 |
USA |
|
| Athletics |
2001 World Athletics Championships |
Edmonton |
 CAN |
4 x 400 m Relay, Men |
1 |
USA |
|
| Athletics |
2007 World Athletics Championships |
Osaka |
 JPN |
400 m, Men |
🥉 |
USA |
|
| Athletics |
2007 World Athletics Championships |
Osaka |
JPN |
4 x 400 m Relay, Men |
🥇 |
USA |
|
| Athletics |
2009 World Athletics Championships |
Berlin |
 GER |
4 x 400 m Relay, Men |
🥇 |
USA |
|
| Athletics |
2011 World Athletics Championships |
Daegu |
 KOR |
4 x 400 m Relay, Men |
🥇 |
USA |
|