The first meeting between the Ephs
and the Polar Bears was in 1986.
Williams leads the series 23-1 through 2009-10.
| Year | Winner | Location (W/B) |
Score | Tournament |
| 2010 | Williams | B | 9-0 | |
| 2009 | Williams | W | 9-0 | |
| 2008 |
Williams |
N |
9-0 |
NESCAC |
| 2008 |
Williams | B |
7-2 |
|
| 2007 |
Williams | W |
9-0 |
|
| 2006 |
Williams | B |
7-2 |
|
| 2004 |
Williams | N |
7-2 |
|
| 2004 |
Williams | W |
8-1 |
|
| 2003 |
Williams | W |
8-1 |
|
| 2001 |
Williams | W |
7-2 |
|
| 2000 |
Bowdoin |
W |
7-2 |
|
| 1999 |
Williams | N |
5-4 |
Howe Cup |
| 1999 |
Williams | W |
5-4 |
|
| 1998 |
Williams | W |
6-3 |
|
| 1997 |
Williams | W |
8-1 |
Howe Cup |
| 1997 |
Williams | N |
6-3 |
|
| 1996 |
Williams | N |
8-1 |
Howe Cup |
| 1996 |
Williams | W |
9-0 |
|
| 1995 |
Williams | W |
9-0 |
|
| 1994 |
Williams | W |
7-2 |
|
| 1993 |
Williams | W |
9-0 |
|
| 1992 |
Williams | W |
9-0 |
|
| 1990 |
Williams | W |
7-2 |
|
| 1986 |
Williams | W |
9-0 |
