| Year |
Result |
Place |
Venue |
Date |
| 1987 |
50.92 |
16 |
Odessa |
May 16 |
| 1989 |
51.46 |
21 |
Kingston |
May 06 |
| 1991 |
51.06 |
20 |
Eugene |
Jun 01 |
| 1992 |
50.19 |
9 |
Barcelona |
Aug 05 |
| 1993 |
50.44 |
8 |
Stuttgart |
Aug 17 |
| 1994 |
50.59 |
12 |
Victoria |
Aug 23 |
| 1995 |
50.53 |
11 |
Nice |
Jul 12 |
| 1996 |
50.45 |
12 |
Atlanta |
Jul 29 |
| 1997 |
49.79 |
4 |
Athens |
Aug 04 |
| 1998 |
50.03 |
5 |
Zürich |
Aug 12 |
| 2000 |
50.42 |
19 |
Sydney |
Sep 24 |
| 2001 |
50.71 |
12 |
Athens |
Jun 11 |
| 2002 |
50.98 |
17 |
Stanford |
Jun 08 |
|
| Year |
Result |
Place |
| 1987 (PanAmer) |
52.89 |
8 |
| 1991 (PanAmer) |
52.45 |
6 |
| 1992 (Olympic) |
50.19 |
7 |
| 1993 (World Indoor) |
50.93 |
1 |
| 1993 (World) |
50.44 |
3 |
| 1994 (ComWealth) |
50.69 |
3 |
| 1995 (World) |
51.13 |
8 |
| 1995 (World Indoor) |
51.38 |
2 |
| 1996 (Olympic) |
50.45 |
7 |
| 1997 (World Indoor) |
51.17 |
2 |
| 1997 (World) |
49.79 |
2 |
| 1998 (ComWealth) |
50.17 |
1 |
| 1998 (World Cup) |
50.33 |
3 |
| 1999 (World Indoor) |
51.75 |
5 |
| 2001 (World Indoor) |
51.04 |
1 |
| 2002 (ComWealth) |
51.79 |
3 |
|
|