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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | OAVG | YEAR | Open Postseason Leaderboard |
|---|---|---|---|---|
| 1 | Willi Kehr | .1769 | 2026-2028 | |
| 2 | Robert Osborne | .1909 | 2014-2020 | |
| 3 | Jake Robinson | .2119 | 2017-2024 | |
| 4 | Neil Millirons | .2130 | 2038-2040 | |
| 5 | Felipe Arreola | .2230 | 2027-2028 | |
| 6 | Blake Mastromarino | .2339 | 2045-2048 | |
| 7 | John Haslam# | .2500 | 2057-2060 | |
| 8 | Ánibal Altichioro | .2544 | 2024-2028 | |
| 9 | Jim Shaffner | .2566 | 2039-2042 | |
| 10 | Juan Martínez | .2632 | 2028-2029 | |
| 11 | Steve Atkins# | .2698 | 2059-2060 | |
| 12 | Clay Tedesco# | .2734 | 2056-2058 | |
| 13 | Victor Vicente# | .2754 | 2048-2053 |
