[4] Before the 1968 season, the Goldpanners, Nevada Copper Kings, and Mendocino Braves left the league and were replaced by the Yakima Indians and Milton-Freewater Twins.
Before the 1969 season, Santa Rosa and San Rafael dropped out and the league added a team in Springfield Bulldogs.
[5] The WBA was reorganized, a new commissioner and board of directors were announced and the league was renamed the Big West Conference before the 1970 season.
[6] As a part of the reorganization, the Alaska Goldpanners rejoined the league along with the newly established Anchorage Glacier Pilots, while Milton-Freewater and Yakima dropped out.
^also won the NBC World Series In August 1982, the Humboldt Crabs hosted the inaugural WBA West of the Rockies Tournament to help showcase teams that would join the newly reestablished Western Baseball Association in 1983.