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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Year | Champion | LgERA | LgAvg | Lg |
|---|---|---|---|---|
| 2020 | Harrisburg Harriers | 3.17 | .251 | 3A |
| 2021 | Columbia River Rats | 3.07 | .242 | 3A |
| 2022 | Myrtle Beach Seahawks | 3.12 | .239 | 3A |
| 2023 | Myrtle Beach Seahawks | 2.88 | .236 | 3A |
| 2024 | Hogsmeade Cauldrons | 3.16 | .243 | 3A |
| 2025 | Delaware 1787 BC | 3.03 | .238 | 3A |
| 2026 | Highwood Hawks | 3.07 | .232 | 3A |
| 2027 | Idaho Falls Chukars | 2.74 | .226 | 3A |
| 2028 | Highwood Hawks | 2.85 | .229 | 3A |
| 2029 | Alameda Airmen | 3.40 | .247 | 3A |
| 2030 | Louisiana Dragoons | 3.54 | .248 | 3A |
| 2031 | Kennesaw Jets | 3.66 | .259 | 3A |
| 2032 | Louisiana Dragoons | 3.47 | .248 | 3A |
| 2033 | York Revolution | 3.83 | .258 | 3A |
| 2034 | Grand Forks Caterpillars | 3.61 | .248 | 3A |
| 2035 | Hogsmeade Cauldrons | 3.41 | .243 | 3A |
| 2036 | Kennesaw Jets | 3.58 | .244 | 3A |
| 2037 | Kennesaw Jets | 3.43 | .241 | 3A |
