| Year |
Result |
Place |
Venue |
Date |
| 1998 |
44.53 |
8 |
Edwardsville |
May 16 |
| 1999 |
44.29 |
4 |
Athens, GA |
May 16 |
| 2000 |
44.70 |
10 |
Baton Rouge |
May 14 |
| 2001 |
44.80 |
10 |
Indianapolis |
Jul 28 |
| 2003 |
44.83 |
12 |
Ciudad de México |
May 03 |
| 2004 |
44.42 |
3 |
Athens |
Aug 23 |
| 2005 |
44.96 |
21 |
Monterrey |
Jun 11 |
| 2006 |
44.96 |
19 |
Heusden-Zolder |
Jul 22 |
| 2007 |
45.02 |
19 |
Indianapolis, IN |
Jun 22 |
|
| International |
| Year |
Result |
Place |
| 2004 (Olympic) |
44.42 |
3 |
| National |
| Year |
Result |
Place |
| 1999 (USA Champ.) |
45.11 |
4 |
| 2001 (USA Champ.) |
45.35 |
4 |
| 2003 (USA Champ.) |
45.05 |
4 |
| 2004 (OT & USA Champ.) |
44.69 |
3 |
| 2005 (USA Champ.) |
45.01 |
5 |
| 2006 (USA Champ.) |
45.23 |
7 |
| 2007 (USA Champ.) |
46.16 |
8 |
|
|