Below is a list of past WBA Champions.
| Year | Team | Location |
|---|---|---|
| 1949 | New Richmond | |
| 1950 | Menomonie | |
| 1951 | Class A – Elmwood | |
| Class B – Park Falls | ||
| 1952 | Class A – Spring Valley | |
| Class B – Cumberland | ||
| 1953 | Class A – Thorp Cardinals | |
| Class B – Cumberland | ||
| 1954 | Class A – Rice Lake | |
| Class B – Cushing | ||
| 1955 | Class A – Spring Valley | |
| Class B – Marshfield | ||
| 1956 | Class A – Cumberland | |
| Class B – Amery | ||
| 1957 | Class A – Ridgeland | |
| Class B – Prairie Farm | ||
| 1958 | Class A – Prescott | |
| Class B – Bangor | ||
| 1959 | Class A – Soldiers Grove | |
| Class B – Wisconsin Rapids | ||
| 1960 | Class A – New Richmond | |
| Class B – Auberndale | ||
| 1961 | Class A – Eau Claire Tommy Millers | |
| Class B – Goodrich | ||
| 1962 | Class A – Pepin Lakers | |
| Class B – Cushing | ||
| 1963 | Class A – Pepin Lakes | |
| Class B – Cushing | ||
| 1964 | Class A – Eau Claire Twin City Sports | |
| Class B – Auberndale | ||
| 1965 | Class A – Ellsworth Hubbers | |
| Class B – Barron | ||
| 1966 | Class A – Ellsworth Hubbers | |
| Class B – Tri-Town | ||
| 1967 | Class A – Pepin Lakers | |
| Class B – Wausau | ||
| 1968 | Wausau | |
| 1969 | Coon Valley | |
| 1970 | Coon Valley | |
| 1971 | Pepin Lakers | |
| 1972 | Rice Lake | Rice Lake |
| 1973 | Pepin Lakers | Abbotsford |
| 1974 | Beacon Bar of Merrill | Pepin |
| 1975 | Beacon Bar of Merrill | Weyerhauser |
| 1976 | Merrill Giants | Abbotsford |
| 1977 | Hayward Hawks | Abbotsford |
| 1978 | Brill Millers | Exeland |
| 1979 | Merrill Giants | Merrill |
| 1980 | Whittlesey Reds | Hayward |
| 1981 | Hayward Hawks | Hayward |
| 1982 | Hayward Hawks | Hayward |
| 1983 | Hayward Hawks | Hayward |
| 1984 | Schofield | Hayward |
| 1985 | Briggsville | Hayward |
| 1986 | Hayward Hawks | Hayward |
| 1987 | Schofield | Hayward |
| 1988 | Briggsville | Hayward |
| 1989 | Menomonie Eagles | Abbotsford |
| 1990 | Mellen Expos | Ashland |
| 1991 | Merrill Giants | Hayward |
| 1992 | Winona (MN) Chiefs | Hayward |
| 1993 | Abbotsford Merchants | Abbotsford |
| 1994 | Augusta Athletics | Abbotsford |
| 1995 | Tilden Tigers | Haugen |
| 1996 | Rothschild/Schofield/Weston | |
| 1997 | Winona (MN) Chiefs | Hallie |
| 1998 | Sparta Millers | Hallie |
| 1999 | Winona (MN) Chiefs | Augusta |
| 2000 | Sparta Millers | Osceola |
| 2001 | La Crescent (MN) Cardinals | Augusta |
| 2002 | Hudson River Rats | Augusta |
| 2003 | Osceola Braves | Abbotsford |
| 2004 | Tilden Tigers | Marshfield |
| 2005 | Eau Claire Bears | Coon Valley |
| 2006 | La Crescent (MN) Cardinals | Osseo |
| 2007 | Chaseburg/Coone Valley Blues | Osceola |
| 2008 | Eau Claire Bears | Ashland |
| 2009 | Eau Claire Bears | Haugen |
| 2010 | Haugen Knights | Tomahawk |
| 2011 | River Falls Fighting Fish | Coon Valley |
| 2012 | Menomonie Eagles | Osseo |
| 2013 | Brill Millers | Osceola |
| 2014 | Prescott Pirates | River Falls |
| 2015 | Chaseburg-Coon Valley Blues | Haugen |
| 2016 | Sparta Millers | Merrill |
| 2017 | Sparta Millers | Viroqua |
| 2018 | Osseo Merchants | Osseo |
| 2019 | Eau Claire Cavaliers | Menomonie |
| 2020 | River Falls Fighting Fish | |
| 2021 | Haugen Knights | |
| 2022 | River Falls Fighting Fish | |
| 2023 | Tilden Tigers | Osseo |
| 2024 | River Falls Fighting Fish (Division A) | River Falls |
| 2024 | Osceola Braves (Divsion B) | Whittlsey |