Midwest Senior League was an Independent and a Senior League that was based in Saskatchewan .
1965 Asquith, Eston, Rosetown, Saskatoon, Saskatoon-Torchinsky
1966 Dinsmore enter the league
1967 Saskatoon has left the league
1968 No Team enter or left the league
1969 No Team enter or left the league
1970 Biggar has enter the league and Asquith and Rosetown has left the league.