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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Lg | LgAvg | LgERA | Champion | Year | Champion | LgERA | LgAvg | Lg |
|---|---|---|---|---|---|---|---|---|
| ILW | .311 | 4.22 | St. Petersburg Rock Cats | 1921 | Dresden Sailors | 4.65 | .325 | ILE |
| ILW | .305 | 4.39 | Dublin Hot Rods | 1922 | Dresden Sailors | 4.90 | .318 | ILE |
| ILW | .295 | 4.14 | St. Petersburg Rock Cats | 1923 | Karlsruhe Crosscutters | 4.42 | .303 | ILE |
| ILW | .296 | 4.19 | Vienna Blue Hens | 1924 | Brest Silver Knights | 4.52 | .303 | ILE |
| ILW | .304 | 4.57 | Utrecht Trail Blazers | 1925 | Zagreb Mules | 4.77 | .310 | ILE |
| ILW | .233 | 2.78 | 1926 | 2.65 | .223 | ILE |
