| 1951 | Salem Senators, Spokane Indians, Tacoma Tigers, Tri-City Braves, Vancouver Capilanos, Victoria Athletics, Wenatchee Chiefs, Yakima Bears |
| 1950 | Salem Senators, Spokane Indians, Tacoma Tigers, Tri-City Braves, Vancouver Capilanos, Victoria Athletics, Wenatchee Chiefs, Yakima Bears |
| 1949 | Bremerton Bluejackets, Salem Senators, Spokane Indians, Tacoma Tigers, Vancouver Capilanos, Victoria Athletics, Wenatchee Chiefs, Yakima Bears |
| 1948 | Bremerton Bluejackets, Salem Senators, Spokane Indians, Tacoma Tigers, Vancouver Capilanos, Victoria Athletics, Wenatchee Chiefs, Yakima Packers |
| 1947 | Bremerton Bluejackets, Salem Senators, Spokane Indians, Tacoma Tigers, Vancouver Capilanos, Victoria Athletics, Wenatchee Chiefs, Yakima Stars |
| 1946 | Bremerton Bluejackets, Salem Senators, Spokane Indians, Tacoma Tigers, Vancouver Capilanos, Victoria Athletics, Wenatchee Chiefs, Yakima Stars |
| 1942 | Salem Senators, Spokane Indians, Tacoma Tigers, Vancouver Capilanos |
| 1941 | Salem Senators, Spokane Indians, Tacoma Tigers, Vancouver Capilanos, Wenatchee Chiefs, Yakima Pippins |
| 1940 | Salem Senators, Spokane Indians, Tacoma Tigers, Vancouver Capilanos, Wenatchee Chiefs, Yakima Pippins |
| 1939 | Bellingham Chinooks, Spokane Hawks, Tacoma Tigers, Vancouver Capilanos, Wenatchee Chiefs, Yakima Pippins |
| 1938 | Bellingham Chinooks, Spokane Hawks, Tacoma Tigers, Vancouver Maple Leafs, Wenatchee Chiefs, Yakima Pippins |
| 1937 | Lewiston Broncs, Spokane Hawks, Tacoma Tigers, Vancouver Maple Leafs, Wenatchee Chiefs, Yakima Pippins |
| 1922 | Calgary Bronchos, Edmonton Eskimos, Tacoma Tigers, Vancouver Beavers |