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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | OBP | YEAR | Open Season Leaderboard |
|---|---|---|---|---|
| 1 | Bill O'Donnell | .4048 | 2085-2092 | |
| 2 | William Castillo | .4017 | 2073-2078 | |
| 3 | John Coogan | .4014 | 2045-2050 | |
| 4 | Dan Vogelbach | .3882 | 2016-2022 | |
| 5 | Mat Beltran | .3800 | 2067-2077 | |
| 6 | Efren Navarro | .3739 | 2011-2016 | |
| 7 | Jon Singleton | .3568 | 2013-2020 | |
| 8 | Jon Edmond | .3554 | 2061-2068 | |
| 9 | Jesse Aber | .3542 | 2033-2040 | |
| 10 | William Serna | .3504 | 2055-2063 | |
| 11 | Lorenzo Rossi | .3489 | 2065-2074 | |
| 12 | Jeremy Walker | .3448 | 2070-2082 | |
| 13 | Guadalupe Fernandez | .3372 | 2050-2054 | |
| 14 | David Zuniga | .3370 | 2077-2088 | |
| 15 | Jamie Goldman | .3367 | 2063-2067 | |
| 16 | Chad Jozwiak | .3353 | 2053-2061 |
