| October 5 & 6, 1996 | Leo Ryan Park, Foster City, California |  | | Results | | October 5 & 6, 1997 | Redwood Shores, Redwood City, California | | | Results | | October 3 & 4, 1998 | Leo Ryan Park, Foster City, California | | | Results | | October 2 & 3, 1999 | Leo Ryan Park, Foster city, California | | | Results | | September 16 & 17, 2000 | Leo Ryan Park, Foster City, California | | | Results | | September 29 & 30, 2001 | Lake Merced, San Francisco, California | | | Results | | September 28 & 29, 2002 | Lake Merced, San Francisco, California | | | Results | | September 27 & 28, 2003 | Lake Merced, San Francisco, California | | | Results | | September 25 & 26, 2004 | Lake Merced, San Francisco, California | | | Results | | August 27 & 28, 2005 | Treasure Island, San Francisco, California | | | Results | | September 23 & 24, 2006 | Treasure Island, San Francisco, California | | | Results | | September 22 & 23, 2007 | Treasure Island, San Francisco, California | | | Results | | October 4 & 5, 2008 | Treasure Island, San Francisco, California | | | Results | | September 26 & 27, 2009 | Treasure Island, San Francisco, California | | | Results |
|