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 53 Junior 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

2017 - Fraser Valley
2016 - 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
1992 - Whalley
1989 - Whalley
1988 - Whalley
1986 - Whalley
1981 - Whalley
1978 - Kennedy Surrey
1976 - Whalley
1971 - Whalley
1963 - Langley