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|
| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | ERA | YEAR | Open Season Leaderboard |
|---|---|---|---|---|
| 1 | Ryosei Takeda | 2.727 | 2014-2018 | |
| 2 | Pedro Santiago | 3.159 | 2024-2027 | |
| 3 | Pedro Valdés | 3.741 | 2015-2021 | |
| 4 | Won-min Im | 4.036 | 2013-2017 | |
| 5 | Scot MacIntosh | 4.127 | 2018-2023 | |
| 6 | John Belcher | 4.500 | 2031-2036 |
