| 2005+ | Retired for Johnny Oates |
| 2004 | |
| 2003 | |
| 2002 | Chris Magruder (st only) |
| 2001 | Johnny Oates (till May 3) |
| 2000 | Johnny Oates |
| 1999 | Johnny Oates |
| 1998 | Johnny Oates |
| 1997 | Johnny Oates |
| 1996 | Johnny Oates |
| 1995 | Johnny Oates |
| 1994 | |
| 1993 | |
| 1992 | |
| 1991 | |
| 1990 | |
| 1989 | |
| 1988 | |
| 1987 | |
| 1986 | George Wright |
| 1985 | George Wright |
| 1984 | George Wright |
| 1983 | George Wright |
| 1982 | George Wright |
| 1981 | |
| 1980 | Dave Rajsich |
| 1979 | Dave Rajsich |
| 1978 | Reggie Cleveland |
| 1977 | Carl Morton (st), Steve Hargan, Keith Smith |
| 1976 | Steve Hargan |
| 1975 | Steve Hargan |
| 1974 | Steve Hargan |
| 1973 | Alex Johnson (st), Lloyd Allen, Mike Epstein |
| 1972 | Jim Miles (st), Jerry Janeski |
Washington Senators Years |
|
| 1971 | Jim Shellenback (st), Jerry Janeski |
| 1970 | Jim Mason (st) |
| 1969 | Phil Ortega (st), Dick Billings |
| 1968 | Phil Ortega |
| 1967 | Phil Ortega |
| 1966 | Phil Ortega |
| 1965 | Phil Ortega |
| 1964 | Jim Hannan (st), Alan Koch |
| 1963 | Carl Bouldin (st) |
| 1962 | John Gabler (st), Don Rudolph |
| 1961 | John Gabler |
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