The Ephs and Polar Bears have been playing since 1890.

Williams played two of the three Maine schools (Bates, Bowdoin and Colby) each season up until 2016.

Beginning with the 2017 season the Ephs play all three Maine schools.

Williams leads the all-time series 58-16-6 through 2024.

Year	Winner	Location W/B	Score
2024	Williams	W	34-14
2023	Bowdoin	B	20-0
2022	Williams	W	24-14
2021	Williams	B	28-3
2020	No contest due to pandemic
2019	Williams	W	41-10
2018	Williams	B	41-7
2017	Williams	W	28-14
2015	Williams	B	27-7
2014	Williams	W	36-0
2011	Williams	B	24-21
2010	Williams	W	33-15
2007	Bowdoin	B	28-14
2006	Williams	W	27-0
2003	Williams	B	24-13
2002	Williams	W	38-7
1999	Williams	B	42-0
1998	Williams	W	42-0
1995	Williams	W	24-6
1994	Williams	W	42-6
1987	Williams	W	24-8
1986	Williams	B	28-7
1985	Williams	W	21-17
1984	Williams	B	16-13
1983	Williams	W	28-9
1982	Williams	B	26-14
1981	Williams	W	15-0
1980	Williams	B	12-7
1979	Bowdoin	W	7-0
1978	Bowdoin	B	14-13
1977	Bowdoin	W	23-21
1976	Williams	B	13-0
1975	Williams	W	22-7
1974	Williams	B	10-6
1973	Williams	W	22-15
1972	Williams	B	35-7
1971	Williams	W	55-0
1970	Bowdoin	B	20-13
1969	Williams	W	28-17
1968	Williams	B	14-7
1967	Williams	W	10-0
1966	Williams	B	17-6
1965	Williams	W	42-13
1964	Willaims	B	36-6
1963	Bowdoin	W	20-0
1962	Williams	B	7-0
1961	Williams	W	9-3
1960	Bowdoin	B	33-7
1959	Bowdoin	W	14-6
1958	Williams	B	48-28
1956	Williams	B	13-7
1955	Williams	W	27-6
1954	Williams	B	27-24
1953	Williams	W	20-14
1952	Bowdoin	B	26-19
1951	Williams	W	13-12
1950	Williams	B	21-13
1949	Williams	W	33-0
1948	Bowdoin	B	34-0
1947	Bowdoin	W	14-0
1946	Bowdoin	B	26-0
1942	Williams	B	19-0
1941	Williams	W	13-0
1940	Tie	B	13-13
1939	Tie	W	0-0
1938	Bowdoin	B	14-0
1937	Williams	W	12-6
1936	Bowdoin	B	6-0
1935	Williams	W	27-6
1934	Williams	B	20-0
1933	Bowdoin	W	13-0
1932	Bowdoin	W	7-0
1931	Williams	W	25-0
1930	Tie	B	7-7
1929	Williams	W	27-6
1928	Williams	B	20-6
1925	Tie	W	6-6
1924	Williams	W	19-0
1921	Tie	W	0-0
1896	Williams	W	22-0
1890	Williams	B	50-0