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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Year | Champion | LgERA | LgAvg | Lg |
|---|---|---|---|---|
| 2014 | New Amsterdam Republics | 4.95 | .270 | SL |
| 2015 | Louisville Slugs | 4.89 | .270 | SL |
| 2016 | California Oceanliners | 4.40 | .259 | SL |
| 2017 | Buckhead Bowties | 4.46 | .256 | SL |
| 2018 | Atlanta Smoke | 4.73 | .261 | SL |
| 2019 | Chicago Gold Sox | 4.26 | .250 | SL |
| 2020 | Richardson City Thundercats | 3.94 | .247 | SL |
| 2021 | Ft. Worth Cattlemen | 3.74 | .240 | SL |
| 2022 | Vancouver Grey Wolves | 3.72 | .242 | SL |
| 2023 | Northern Virginia Retrievers | 4.00 | .251 | SL |
| 2024 | Oakland Oaks | 4.16 | .254 | SL |
