| Year |
Result |
Place |
Venue |
Date |
| 1976 |
47.64 |
1 |
Montreal |
Jul 25 |
| 1977 |
47.45 |
1 |
Westwood |
Jun 11 |
| 1978 |
47.94 |
1 |
Zürich |
Aug 16 |
| 1979 |
47.53 |
1 |
Montreal |
Aug 24 |
| 1980 |
47.13 |
1 |
Milan |
Jul 3 |
| 1981 |
47.14 |
1 |
Lausanne |
Jul 14 |
| 1983 |
47.02 |
1 |
Koblenz |
Aug 31 |
| 1984 |
47.32 |
1 |
Koblenz |
Aug 29 |
| 1986 |
47.38 |
1 |
Lausanne |
Sep 2 |
| 1987 |
47.46 |
1 |
Rome |
Sep 1 |
| 1988 |
47.37 |
3 |
Indianapolis |
Jul 17 |
|
| International |
| Year |
Result |
Place |
| 1976 (Olympic) |
47.64 |
1 |
| 1977 (World Cup) |
47.58 |
1 |
| 1979 (World Cup) |
47.53 |
1 |
| 1981 (World Cup) |
47.37 |
1 |
| 1983 (World) |
47.50 |
1 |
| 1984 (Olympic) |
47.75 |
1 |
| 1987 (World) |
47.46 |
1 |
| 1988 (Olympic) |
47.56 |
3 |
| National |
| Year |
Result |
Place |
| 1976 (Olympic Trial) |
48.30 AR |
1 |
| 1976 (USA Champ.) |
48.99 |
4 |
| 1977 (USA Champ.) |
47.45 WR |
1 |
| 1979 (USA Champ.) |
47.89 |
1 |
| 1980 (Olympic Trial) |
47.90 TR |
1 |
| 1981 (USA Champ.) |
47.59 |
1 |
| 1983 (USA Champ.) |
47.84 |
1 |
| 1984 (Olympic Trial) |
47.76 |
1 |
| 1984 (USA Champ.) |
dnc |
|
| 1987 (USA Champ.) |
47.99 |
1 |
| 1988 (Olympic Trial) |
47.37 TR |
1 |
|
| World Records |
|
( - Record was ratified)
|
| |
47.64 |
Montreal
|
Jul 25, 1976
|
| |
47.45 |
Westwood
|
Jun 11, 1977
|
| |
47.13 |
Milan
|
Jul 03, 1980
|
| |
47.02 |
Koblenz
|
Aug 31, 1983
|
| American Records |
|
( - Record was ratified)
|
| |
48.30 |
Eugene
|
Jun 21, 1976
|
| |
48.29 |
Montreal
|
Jul 24, 1976
|
|