1968-69: 5-5, 3-4 (Pac-8)
1969-70: 4-9, 2-5 (Pac-8)
1970-71: 5-9, 2-5 (Pac-8)
1971-72: 7-5, 4-3 (Pac-8)
1972-73: 9-3, 4-3 (Pac-8)
1973-74: 6-5, 3-4 (Pac-8)
1974-75: 7-4, 4-3 (Pac-8)
1975-76: 7-7, 2-5 (Pac-8)
1976-77: 9-5, 3-4 (Pac-8)
1977-78: 7-7, 1-6 (Pac-8)
1978-79: 10-4, 5-4 (Pac-10)
1979-80: 5-8, 3-6 (Pac-10)
1980-81: 8-7, 4-5 (Pac-10)
1981-82: 6-11, 1-8 (Pac-10)
1982-83: 12-5, 5-4 (Pac-10)
1983-84: 13-5, 5-4 (Pac-10)
1984-85: 9-7, 2-7 (Pac-10)
1985-86: 8-7, 4-5 (Pac-10)
1986-87: 11-2, 7-2 (Pac-10)
1987-88: 12-4, 7-2 (Pac-10)
1988-89: 13-0, 9-0 (Pac-10)
1989-90: 11-3, 6-3 (Pac-10)
1990-91: 13-4, 6-3 (Pac-10)
1991-92: 12-3, 6-3 (Pac-10)
1992-93: 7-9, 2-7 (Pac-10)
1993-94: 11-4, 6-3 (Pac-10)
1994-95: 14-2, 7-2 (Pac-10)
1995-96: 12-1, 8-1 (Pac-10)
1996-97: 12-0, 9-0 (Pac-10)
1997-98: 11-2, 7-2 (Pac-10)
1998-99: 13-2, 8-1 (Pac-10)
1999-00: 12-2, 7-2 (Pac-10)
2000-01: 12-2, 7-2 (Pac-10)
2001-02: 10-3, 6-3 (Pac-10)
2002-03: 14-3, 8-1 (Pac-10)
2003-04: 14-0, 9-0 (Pac-10)
2004-05: 10-2, 7-2 (Pac-10)
2005-06: 11-3, 7-2 (Pac-10)
2006-07: 12-5, 7-2 (Pac-10)
2007-08: 16-1, 8-1 (Pac-10)
2008-09: 14-4, 5-4 (Pac-10)
2009-10: 10-6, 5-4 (Pac-10)
2010-11: 11-5, 4-5 (Pac-10)
2011-12: 17-3, 7-2 (Pac-12)
2012-13: 12-5, 5-4 (Pac-12)
2013-14: 12-4, 6-3 (Pac-12)
2014-15: 16-3, 6-3 (Pac-12)
2015-16: 12-5, 6-3 (Pac-12)
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2016-17: 11-5, 5-4 (Pac-12)
2017-18: 14-4, 7-2 (Pac-12)
2018-19: 10-4, 5-4 (Pac-12)
Totals: 539-218 (.712), 272-167 (.619)