| Year | # | Event | Venue | Winner |
|---|---|---|---|---|
| 2020 | 0 | Western Regional | Adolphs, Randy | |
| 2018 | 0 | Western Regional | Mission Bay YC | Henkart, Paul |
| 2017 | 0 | Western Regional | Mission Bay YC | Piehl, Les |
| 2016 | 0 | Western Regional | Mission Bay YC | Piehl, Les |
| 2015 | 0 | Western Regional | Mission Bay YC | Piehl, Les |
| 2014 | 0 | Western Regional | Mission Bay YC | Gauger, Derek |
| 2013 | 0 | Western Regional | Mission Bay YC | Piehl, Les |
| 2012 | 0 | Western Regional | Piehl, Les | |
| 2011 | 0 | Western Regional | Piehl, Les | |
| 2004 | 0 | Western Regional | Scotts Flat Lake | Cronin,Bob |
| 2003 | 0 | Western Regional | Scotts Flat Reservoir | Byron, Jonk |
| 2001 | 0 | Western Regional | Cronin,Bob | |
| 2000 | 0 | Western Regional | Clear Lake, CA | Cronin,Bob |
| 1999 | 0 | Western Regional | Gold Country YC | Cronin,Bob |
| 1998 | 0 | Western Regional | Cronin,Bob | |
| 1997 | 0 | Western Regional | Coe, Darryl | |
| 1996 | 0 | Western Regional | Wilson,George | |
| 1994 | 0 | Western Regional | ||
| 1993 | 0 | Western Regional | Clear Lake, CA | Straub, Rich |
| 1992 | 0 | Western Regional | Treasure Island YC | League, Harry |
| 1991 | 0 | Western Regional | ||
| 1990 | 0 | Western Regional | ||
| 1989 | 0 | Western Regional | ||
| 1988 | 0 | Western Regional | Dozier, Earl | |
| 1987 | 0 | Western Regional | ||
| 1986 | 0 | Western Regional | Heffernan-Haberland, Nancy | |
| 1985 | 0 | Western Regional | ||
| 1984 | 0 | Western Regional | Wilson,George | |
| 1983 | 0 | Western Regional | Diablo SC | Vessela, Peter |
| 1982 | 0 | Western Regional | Cronin,Bob | |
| 1981 | 0 | Western Regional | ||
| 1980 | 0 | Western Regional | Lakeport YC | Pexton,Steve |
| 1979 | 0 | Western Regional | Wilson,George | |
| 1978 | 0 | Western Regional | Wilson,George |