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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| League | Level | From-To | Parent League |
|---|---|---|---|
| Finnish Offseason Baseball League | SUP | 1931-1934 | |
| FOBL High School | HS | 1931-1934 | Finnish Offseason Baseball League |
| FOBL Rookie League | R | 1931-1933 | Finnish Offseason Baseball League |
| FOBL Double A | AA | 1931-1933 | Finnish Offseason Baseball League |
| Filipino Professional League | INT | 1931-1933 | |
| Brazilian Baseball Organization | INT | 1931-1933 | |
| FOBL College | COL | 1933-1933 | Finnish Offseason Baseball League |
| FOBL Junior College | JUCO | 1933-1933 | Finnish Offseason Baseball League |
