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The league is separated into four divisions (A, B, C, and D) by size of school. Shrewsbury High School is currently the largest with 1,879 students, while Murdock High School is the smallest with 252 students.
Note: From 1972-2012, state championships were separated by region, so there would be multiple champions from each division. From 1972-1977 and 1997-2008, it was split between Eastern Mass and Central/Western Mass and there would be two champions in each division. From 1978-1996 and from 2009-2012 Central and Western Mass split so there would be three champions in each division. In 2013 everything was combined and therefore only allowed one state champion per division.
1972
Fitchburg - D1 Central/Western
1973
Leominster - D1 Central/Western
Algonquin - D2 Central/Western
Oakmont - D3 Central/Western
1974
Leominster - D1 Central/Western
1977
Oakmont - D3 Central/Western
1978
Leominster - D1 Central
Oakmont - D2 Central
1979
Marlborough - D1 Central
Lunenburg - D2 Central
1980
Ayer-Shirley - D2 Central
1981
Leominster - D1 Central
Lunenburg - D2 Central
1982
Leominster - D1 Central
Ayer-Shirley - D2 Central
1983
Lunenburg - D2 Central
1984
Westborough - D1 Central
Oakmont - D2 Central
1988
West Boylston - D3 Central
1989
Leominster - D1 Central
North Middlesex - D2 Central
1990
Leominster - D1 Central
North Middlesex - D2 Central
Narragansett - D3 Central
1991
Hudson - D2 Central
1992
North Middlesex D1 Central
1993
North Middlesex - D1 Central
1994
Tynsborough - D5B Eastern
North Middlesex - D1 Central
Clinton - D3 Central
1995
North Middlesex - D1 Central
Clinton - D3 Central
1996
Fitchburg - D1 Central
Narragansett - D3 Central
1997
Leominster - D1A Central/Western
Gardner - D2A Central/Western
1998
Leominster - D1A Central/Western
Lunenburg - D3A Central/Western
1999
Nashoba - D1 Central/Western
Clinton - D3 Central/Western
2000
Fitchburg - D1 Central/Western
Shrewsbury - D1A Central/Western
Clinton - D3 Central/Western
2001
Clinton - D3 Central/Western
2002
Leominster - D1 Central/Western
Clinton - D3 Central/Western
2003
Wachusett - D1A Central/Western
2004
Wachusett - D1A Central/Western
2005
Narragansett - D3 Central/Western
2006
Oakmont - D3 Central/Western
2007
Shrewsbury - D1A Central/Western
Shepard Hill - D2 Central/Western
2009
Wachusett - D1 Central
Oakmont - D3 Central
2010
Wachusett - D1A Central
Clinton - D3A Central
2011
Leominster - D1 Central
Nashoba - D2 Central
2012
Leominster - D1 Central
Nashoba - D2 Central
West Boylston - D5 Central
2013
Littleton - D6
2015
Nashoba - D2
2018
Nashoba - D4
2022
West Boylston - D7
2023
West Boylston - D8
Cross Country
Boys:
Gardner - 1976
Girls:
Fitchburg - 1989 D1
Nashoba - 1992 D1
Bromfield - 2002, 2005, 2006, 2007 D2
Bromfield - 2023 D3
Field Hockey
Quabbin - 1991 D2
Volleyball
Marlborough - 2003, 2011 D2
Westborough - 2017, 2022, 2023 D2
Groton-Dunstable - 2018 D2
Soccer
Boys:
Quabbin - 1973 D2
Leominster - 1978 D1
Wachusett - 1984 D1
Bromfield - 1986, 1987, 1988 (co-champs with St. Mary's High School), 1989, 1996, 2005, 2007, 2008 D3