Intermediate League World Series (West Region)
The Intermediate League World Series West Region is one of five United States regions that currently sends teams to the Intermediate League World Series in Livermore, California. The region's participation in the ILWS dates back to 2013.As of the 2019 Intermediate League World Series.As of the 2019 Intermediate League World Series.
| State | Region
Championships | ILWS
Championships | W–L | PCT |
 Hawaii | 3 | 1 | 9-4 | 0.692 |
 Arizona | 1 | 0 | 1-2 | 0.333 |
| Host Team | 1 | 1 | 4-0 | 1.000 |
 Southern California | 1 | 0 | 2-2 | 0.500 |
| Northern California | 1 | 0 | 0-3 | 0.000 |
| Totals | 7 | 2 | 16–11 | 0.593 |
