| Year | City | BLWS | Record |
|---|
| 1968 | Barstow–Victorville, Southern California | Fourth Place | 1–2 |
| 1969 | Barstow, Southern California | Champions | 4–0 |
| 1970 | San Fernando/Simi Valley, Southern California | Runner-up | 3–2 |
| 1971 | Cupertino, Northern California | Champions | 4–1 |
| 1972 | Inglewood, Southern California | Runner-up | 4–2 |
| 1973 | West Orange County, Southern California | Runner-up | 3–2 |
| 1974 | El Cajon, Southern California | Round 1 | 0–2 |
| 1975 | Aiea, Hawaii | Round 2 | 1–2 |
| 1976 | Cupertino, Northern California | Fourth Place | 3–2 |
| 1977 | Hilo, Hawaii | Fourth Place | 2–2 |
| 1978 | Port Hueneme, Southern California | Third Place | 3–2 |
| 1979 | Tucson, Arizona | Round 3 | 1–2 |
| 1980 | Buena Park, Southern California | Champions | 5–0 |
| 1981 | Villa Park, Southern California | Round 2 | 0–2 |
| 1982 | Tucson, Arizona | Third Place | 3–2 |
| 1983 | Sacramento, Northern California | Round 4 | 2–2 |
| 1984 | Sacramento, Northern California | Fourth Place | 2–2 |
| 1985 | Tucson, Arizona | Round 4 | 2–2 |
| 1986 | San Bernardino, Southern California | Round 4 | 1–2 |
| 1987 | Tucson, Arizona | Fourth Place | 3–2 |
| 1988 | Tucson, Arizona | Round 3 | 1–2 |
| 1989 | San Leandro, Northern California | Round 1 | 0–2 |
| 1990 | Grass Valley, Northern California | Round 3 | 1–2 |
| 1991 | Norwalk, Southern California | Round 1 | 0–2 |
| 1992 | Victorville, Southern California | Round 3 | 2–2 |
| 1993 | Pearl City, Hawaii | US Final | 2–2 |
| 1994 | Victorville, Southern California | Third Place | 2–2 |
| 1995 | Aiea, Hawaii | US Final | 3–2 |
| 1996 | Pearl City, Hawaii | US Final | 3–2 |
| 1997 | Aiea, Hawaii | Round 3 | 1–2 |
| 1998 | Thousand Oaks, Southern California | Champions | 5–0 |
| 1999 | Aiea, Hawaii | US Final | 3–2 |
| 2000 | Santee, Southern California | US Final | 2–3 |
| 2001 | Westminster, Southern California | Champions | 5–1 |
| 2002 | Auburn, Washington | Pool stage | 1–3 |
| 2003 | Thousand Oaks, Southern California | Runner-up | 5–1 |
| 2004 | Anaheim, Southern California | Semifinals | 3–2 |
| 2005 | Thousand Oaks, Southern California | Runner-up | 4–2 |
| 2006 | Thousand Oaks, Southern California | Champions | 7–0 |
| 2007 | Thousand Oaks, Southern California | US Final | 4–1 |
| 2008 | Anaheim, Southern California | US Final | 3–2 |
| 2009 | Thousand Oaks, Southern California | Runner-up | 4–2 |
| 2010 | Thousand Oaks, Southern California | Runner-up | 4–2 |
| 2011 | Alameda County, Northern California | Pool stage | 1–3 |
| 2012 | Anaheim, Southern California | Pool stage | 3–1 |
| 2013 | Thousand Oaks, Southern California | US Final | 3–2 |
| 2014 | Thousand Oaks, Southern California | Pool stage | 2–2 |
| 2015 | Thousand Oaks, Southern California | Runner-up | 4–1 |
| 2016 | Kihei, Hawaii | Runner-up | 4–2 |