Rauzulu's Street Rauzulu's Street |
Pacific 10 Conference Baseball Champions
Champions include records for Pacific Coast Conference (1916-1959), Athletic Association of Western Universities (1960-1968), Pacific 8 Conference (1969-1978), and Pacific 10 Conference (1979-Present) |
| Year | Season Champion | Playoff Champion | |
| 1916 | California | No Playoff | |
| 1917 | California | No Playoff | |
| 1918 | Oregon | No Playoff | |
| 1919 | Washington | No Playoff | |
| 1920 | California | No Playoff | |
| 1921 | California | No Playoff | |
| 1922 | Washington | No Playoff | |
| 1923 | North | Washington | No Playoff |
| South | California | ||
| 1924 | California Stanford USC |
No Playoff | |
| 1925 | North | Washington | No Playoff |
| South | Stanford | ||
| 1926 | North | Washington | No Playoff |
| South | California | ||
| 1927 | North | Washington State | No Playoff |
| CIBA | St. Mary's | ||
| 1928 | North | Oregon/Washington State | No Playoff |
| CIBA | St. Mary's | ||
| 1929 | North | Washington | No Playoff |
| CIBA | California | ||
| 1930 | North | Washington | No Playoff |
| CIBA | USC | ||
| 1931 | North | Washington | No Playoff |
| CIBA | Stanford | ||
| 1932 | North | Washington | No Playoff |
| CIBA | USC | ||
| 1933 | North | Washington State | No Playoff |
| CIBA | California | ||
| 1934 | North | Oregon | No Playoff |
| CIBA | California | ||
| 1935 | North | Oregon | No Playoff |
| CIBA | California USC |
||
| 1936 | North | Washington State | No Playoff |
| CIBA | USC | ||
| 1937 | North | Oregon | No Playoff |
| CIBA | California | ||
| 1938 | North | Oregon State Washington State |
No Playoff |
| CIBA | California | ||
| 1939 | North | Oregon | No Playoff |
| CIBA | USC St. Mary's |
||
| 1940 | North | Oregon State | No Playoff |
| CIBA | St. Mary's | ||
| 1941 | North | Oregon | No Playoff |
| CIBA | California/St.Mary's | ||
| 1942 | North | Oregon | No Playoff |
| CIBA | USC | ||
| 1943 | North | Oregon | |
| CIBA | Division 1: California | California | |
| Division 2: USC | |||
| 1944 | North | Washington State | No Playoff |
| CIBA | UCLA | ||
| 1945 | North | Washington State | No Playoff |
| CIBA | California | ||
| 1946 | North | Washington State | No Playoff |
| CIBA | USC | ||
| 1947 | North | Washington State | California |
| CIBA | California/USC | ||
| 1948 | North | Washington State | USC |
| CIBA | USC | ||
| 1949 | North | Washington State | USC |
| CIBA | USC | ||
| 1950 | North | Washington State | Washington State |
| CIBA | Stanford | ||
| 1951 | North | Oregon State | USC |
| CIBA | USC | ||
| 1952 | North | Oregon State | Oregon State |
| CIBA | USC | ||
| 1953 | North | Oregon | Stanford |
| CIBA | Stanford | ||
| 1954 | North | Oregon | Oregon |
| CIBA | USC | ||
| 1955 | North | Oregon | USC |
| CIBA | USC | ||
| 1956 | North | Washington State | Washington State |
| CIBA | USC | ||
| 1957 | North | Oregon | California |
| CIBA | California/USC | ||
| 1958 | North | Oregon State | USC |
| CIBA | USC | ||
| 1959 | North | Washington | USC |
| CIBA | USC | ||
| 1960 | North | Washington State | |
| CIBA | California USC |
No Playoff | |
| 1961 | North | Washington State | |
| CIBA | USC | No Playoff | |
| 1962 | North | Oregon State | |
| CIBA | Santa Clara | No Playoff | |
| 1963 | North | Oregon State | |
| CIBA | USC | No Playoff | |
| 1964 | North | Oregon | |
| CIBA | USC | No Playoff | |
| 1965 | North | Washington State | |
| CIBA | Stanford California |
No Playoff | |
| 1966 | North | Washington State | |
| CIBA | USC | No Playoff | |
| 1967 | Stanford | No Playoff | |
| 1968 | USC | No Playoff | |
| 1969 | UCLA | ||
| 1970 | North | Washington State | USC |
| South | USC | ||
| 1971 | North | Washington State | USC |
| South | USC | ||
| 1972 | North | Washington State/Oregon | USC |
| South | USC | ||
| 1973 | North | Washington State | USC |
| South | USC | ||
| 1974 | North | Oregon/Washington State | USC |
| South | USC | ||
| 1975 | North | Washington State | USC |
| South | USC | ||
| 1976 | North | Washington State | UCLA |
| CIBA | UCLA | ||
| 1977 | North | Washington State | USC |
| South | USC | ||
| 1978 | North | Washington State | USC |
| South | USC | ||
| 1979 | North | Washington State | UCLA |
| South | UCLA | ||
| 1980 | North | Washington State | No Playoff |
| South | Arizona State California |
||
| 1981 | North | Washington | No Playoff |
| South | Arizona State | ||
| 1982 | North | Oregon State Washington State |
No Playoff |
| South | Arizona State | ||
| 1983 | North | Oregon State | No Playoff |
| South | Stanford | ||
| 1984 | North | Washington State Portland State |
Washington State |
| South | Arizona State | ||
| 1985 | North | Washington State | Oregon State |
| South | Stanford | ||
| 1986 | North | Oregon State | Oregon State |
| South | UCLA | ||
| 1987 | North | Washington State | Washington State |
| South | Stanford | ||
| 1988 | North | Washington State | Washington State |
| South | Arizona State | ||
| 1989 | North | Washington State | Portland |
| South | Arizona | ||
| 1990 | North | Washington State | Washington State |
| South | Stanford | ||
| 1991 | North | Washington State | Portland |
| South | USC | ||
| 1992 | North | Washington | No Playoff |
| South | Arizona | ||
| 1993 | North | Washington | No Playoff |
| South | Arizona State | ||
| 1994 | North | Oregon State | No Playoff |
| South | Stanford | ||
| 1995 | North | Washington State | USC |
| South | USC | ||
| 1996 | North | Washington | USC |
| South | USC | ||
| 1997 | North | Washington | Washington |
| South | Stanford | ||
| 1998 | North | Washington | Washington |
| South | Stanford | ||
| 1999 | Stanford | No Playoff | |
| 2000 | UCLA Arizona State Stanford |
No Playoff | |
| 2001 | USC | No Playoff | |
| 2002 | USC | No Playoff | |
| 2003 | Stanford | No Playoff | |
| 2004 | Stanford | No Playoff | |
| 2005 | Oregon State | No Playoff | |
| 2006 | Oregon State | No Playoff | |
| 2007 | Arizona State | No Playoff | |
| 2008 | Arizona State | No Playoff | |