Senior League was founded in 1963. Since Canada first entered a team in the World Series in 1965, District 3 has represented Canada at 18 of 55 Senior World Series Tournaments.

District 3 Senior Champions

Canadian Champions

2017 - Fraser Valley
2008 - Whalley
2007 - Whalley
2004 - Whalley
2001 - Whalley
2000 - Whalley
1999 - Kennedy Surrey
1998 - Whalley
1995 - Langley
1992 - Whalley
1989 - Whalley
1988 - Whalley
1986 - Whalley
1981 - Whalley
1978 - Kennedy Surrey
1976 - Whalley
1971 - Whalley
1963 - Langley

Provincial Champions

2022 - Coquitlam
2018 - Fraser Valley Warriors
2017 - Fraser Valley
2016 - Fraser Valley
2015 - Fraser Valley
2014 - Fraser Valley
2013 - Fraser Valley
2012 - Fraser Valley
2009 - Coquitlam
2008 - Whalley
2007 - Whalley
2004 - Whalley
2001 - Whalley
2000 - Whalley
1999 - Kennedy Surrey
1998 - Whalley
1995 - Langley
1994 - Whalley
1993 - Whalley
1992 - Whalley
1991 - Whalley
1990 - Whalley
1989 - Whalley
1988 - Whalley
1987 - Coquitlam
1986 - Whalley
1985 - Coquitlam
1983 - Coquitlam
1981 - Whalley
1980 - Whalley
1979 - Kennedy Surrey
1978 - Kennedy Surrey
1977 - Whalley
1976 - Whalley
1971 - Whalley
1970 - Whalley
1964 - Langley
1963 - Langley