| Year |
Result |
Place |
Venue |
Date |
| 1974 |
49.5 |
10 |
Westwood |
Jun 22 |
| 1975 |
49.03 |
5 |
Durham |
Jul 19 |
| 1976 |
49.33 |
11 |
Westwood |
Jun 12 |
| 1977 |
49.27 |
6 |
Westwood |
Jun 11 |
| 1978 |
49.70 |
14 |
Stuttgart |
Aug 22 |
| 1979 |
49.00 |
9 |
Bratislava |
Sep 7 |
| 1980 |
49.24 |
10 |
Walnut |
Apr 19 |
| 1981 |
49.26 |
9 |
Zürich |
Aug 19 |
| 1982 |
49.30 |
14 |
Westwood |
May 16 |
| 1983 |
49.21 |
15 |
Indianapolis |
Jun 18 |
|
| International |
| Year |
Result |
Place |
| 1975 (PanAmer) |
49.80 |
1 |
| 1983 (PanAmer) |
50.31 |
3 |
| National |
| Year |
Result |
Place |
| 1974 (USA Champ.) |
49.5 |
3 |
| 1975 (USA Champ.) |
49.22 |
3 |
| 1976 (Olympic Trial) |
50.07 |
7 |
| 1976 (USA Champ.) |
49.33 |
6 |
| 1977 (USA Champ.) |
49.27 |
4 |
| 1979 (USA Champ.) |
49.84 |
6 |
| 1980 (Olympic Trial) |
49.49 |
5 |
| 1980 (USA Champ.) |
49.43 |
2 |
| 1981 (USA Champ.) |
49.47 |
6 |
| 1983 (USA Champ.) |
50.09 |
4 |
|
|