| Club | Based in | Founded | Home ground |
|---|---|---|---|
| Arizona Thunder | Arizona | 1998 | Arizona Veterans Memorial Coliseum |
| Portland Pythons | — | 1998 | Moda Center |
| St. Louis Steamers | — | 1998 | Enterprise Center |
| Club | Based in | Founded | Home ground |
|---|---|---|---|
| Arizona Thunder | Arizona | 1998 | Arizona Veterans Memorial Coliseum |
| Portland Pythons | — | 1998 | Moda Center |
| St. Louis Steamers | — | 1998 | Enterprise Center |