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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | OBP | YEAR | Open Career Leaderboard |
|---|---|---|---|---|
| 1 | Juan Morales# | .4424 | 2055 | |
| 2 | Fernando Flores | .3994 | 2037 | |
| 3 | Jorge Borbón | .3972 | 2023 | |
| 4 | Austin Hathaway | .3952 | 2026 | |
| 5 | Ramiro Ramos | .3896 | 2027 | |
| 6 | Ricardo Varela | .3887 | 2036 | |
| 6 | Víctor Puente | .3887 | 2029 | |
| 8 | Josh Mawdesley | .3851 | 2031 | |
| 9 | Bartolo Ayala | .3830 | 2043 | |
| 10 | Phil Mazzeo | .3786 | 2031 | |
| 11 | Magnus Fjord | .3762 | 2042 | |
| 12 | Derek Tyerman | .3729 | 2047 | |
| 13 | Mark Patterson | .3725 | 2035 | |
| 14 | Juan Carlos Cruz | .3714 | 2023 | |
| 15 | Nicol van Gorp | .3698 | 2035 | |
| 16 | Landon Harryman | .3687 | 2030 | |
| 16 | Ramón Ortíz | .3687 | 2047 | |
| 18 | Jiao-long Tow# | .3681 | 2061 | |
| 19 | Justice Bigbie | .3672 | 2040 | |
| 20 | Orlando Montejo | .3667 | 2029 | |
| 21 | Orlando Rodríguez# | .3664 | 2055 | |
| 22 | Jae-woo Yi | .3654 | 2049 | |
| 23 | Duk-yoon Yun# | .3643 | 2060 | |
| 24 | Chet McFadden# | .3639 | 2060 | |
| 25 | Bobby Rush# | .3636 | 2062 | |
| 26 | Wendel Koudstaal | .3624 | 2040 | |
| 27 | Chi-hun Chong | .3623 | 2028 | |
| 28 | Will Gamble | .3622 | 2045 | |
| 28 | Gabriel Obregón | .3622 | 2040 | |
| 30 | Ken Hines | .3619 | 2051 | |
| 31 | Mario Ornelas# | .3610 | 2058 | |
| 32 | Derek Blair | .3602 | 2021 | |
| 33 | Jorge Villarreal | .3596 | 2047 | |
| 34 | José Rivera | .3591 | 2041 | |
| 34 | Kyle Mann | .3591 | 2021 | |
| 36 | Pedro Cortés# | .3588 | 2057 | |
| 37 | Mark Patterson | .3576 | 2033 | |
| 38 | Bill Simon# | .3575 | 2059 | |
| 39 | José Cruz | .3567 | 2049 | |
| 40 | Sébastien Guillaume | .3532 | 2045 | |
| 41 | Augusto Ortíz | .3529 | 2045 | |
| 42 | Q' Drennan | .3506 | 2037 | |
| 42 | Gabriel Obregón | .3506 | 2039 | |
| 44 | Bob Johnson | .3499 | 2052 | |
| 44 | Mark Patterson | .3499 | 2032 | |
| 46 | Grady Harris | .3481 | 2034 | |
| 47 | Jorge Rodríguez | .3479 | 2048 | |
| 47 | Tomás Mejía | .3479 | 2020 | |
| 49 | Cheol-chung Yi | .3477 | 2050 | |
| 50 | Markus Lund# | .3476 | 2059 | |
| 51 | Nicol van Gorp | .3470 | 2036 | |
| 51 | Gregory Jones | .3470 | 2046 | |
| 53 | Elijah Smalls# | .3468 | 2059 | |
| 54 | Ken Moore | .3466 | 2032 | |
| 55 | Tony Mendoza | .3452 | 2044 | |
| 56 | Jason DeGeorge | .3445 | 2028 | |
| 57 | Dong-woo Kim | .3438 | 2038 | |
| 58 | Greg Rogers | .3413 | 2041 | |
| 59 | Juan Reyes | .3410 | 2031 | |
| 59 | Scott Zijm | .3410 | 2022 | |
| 61 | Rafael Suarez | .3409 | 2049 | |
| 62 | Patrick Nichols# | .3403 | 2061 | |
| 63 | Ricardo Elías | .3400 | 2031 | |
| 64 | José Mondragon# | .3398 | 2053 | |
| 65 | Wen Mi | .3392 | 2047 | |
| 66 | Daron Mack | .3389 | 2036 | |
| 67 | Jeff Griffin | .3385 | 2040 | |
| 68 | Ernest Weber | .3377 | 2051 | |
| 69 | Andrés Moreno | .3376 | 2045 | |
| 69 | Derek Tyerman | .3376 | 2046 | |
| 71 | Joseph Papasogli | .3364 | 2024 | |
| 71 | Bill Strong# | .3364 | 2051 | |
| 73 | Tom Lenehan | .3344 | 2046 | |
| 74 | Motoki Yamasaki | .3333 | 2046 | |
| 74 | Ramiro Ramos | .3333 | 2026 | |
| 76 | Jason DeGeorge | .3326 | 2029 | |
| 77 | Alfonso Cabedo | .3325 | 2032 | |
| 78 | António Torres | .3324 | 2057 | |
| 78 | Trent Armstrong | .3324 | 2042 | |
| 80 | Jeff Griffin | .3317 | 2039 | |
| 81 | Edward Payne | .3313 | 2020 | |
| 82 | Bill Strong# | .3308 | 2050 | |
| 82 | Tomás Flores | .3308 | 2036 | |
| 84 | Ernesto García | .3306 | 2048 | |
| 84 | Reynaldo Parriego | .3306 | 2044 | |
| 86 | Esteban Mejía | .3301 | 2054 | |
| 87 | John Fitzgerald | .3299 | 2035 | |
| 88 | Chip Garland# | .3294 | 2057 | |
| 88 | Elder Sarrano | .3294 | 2032 | |
| 90 | Kensaku Hatayama | .3292 | 2033 | |
| 90 | Ángel Venegas | .3292 | 2032 | |
| 92 | Q' Drennan | .3290 | 2036 | |
| 93 | Jesús Recesvinto | .3289 | 2029 | |
| 94 | Juan Orozco# | .3284 | 2056 | |
| 95 | Joahan Urdiales# | .3279 | 2054 | |
| 96 | José Rico | .3278 | 2047 | |
| 97 | Mark Doss | .3277 | 2054 | |
| 97 | Wu Zhang | .3277 | 2053 | |
| 99 | José Marrero# | .3274 | 2062 | |
| 100 | Phil Mazzeo | .3273 | 2032 |
