| 2002 | 6 | 3 | Chico Heat | Chico Heat,Long Beach Breakers,Solano Steelheads,Sonoma County Crushers,Yuba-Sutter Gold Sox,Yuma Bullfrogs |
| 2001 | 6 | 2 | Long Beach Breakers | Chico Heat,Long Beach Breakers,Solano Steelheads,Sonoma County Crushers,St. George Pioneerzz,Yuma Bullfrogs |
| 2000 | 8 | 2 | Zion Pioneerzz | Chico Heat,Feather River Mudcats,Solano Steelheads,Sonoma County Crushers,Tri-City Posse,Valley Vipers,Yuma Bullfrogs,Zion Pioneerzz |
| 1999 | 6 | 1 | Tri-City Posse | Chico Heat,Reno Blackjacks,Sacramento Steelheads,Sonoma County Crushers,Tri-City Posse,Zion Pioneerzz |
| 1998 | 8 | 2 | | Bend Bandits,Chico Heat,Grays Harbor Gulls,Mission Viejo Vigilantes,Pacific Suns,Reno Chukars,Sonoma County Crushers,Tri-City Posse |
| 1997 | 8 | 1 | | Bend Bandits,Chico Heat,Grays Harbor Gulls,Mission Viejo Vigilantes,Reno Chukars,Salinas Peppers,Sonoma County Crushers,Tri-City Posse |
| 1996 | 8 | 2 | | Bend Bandits,Grays Harbor Gulls,Long Beach Riptide,Palm Springs Suns,Reno Chukars,Salinas Peppers,Sonoma County Crushers,Tri-City Posse |
| 1995 | 8 | 2 | | Bend Bandits,Grays Harbor Gulls,Long Beach Barracudas,Palm Springs Suns,Salinas Peppers,Sonoma County Crushers,Surrey Glaciers,Tri-City Posse |
| 8 record(s) |