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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | OBP | YEAR | Open Career Leaderboard |
|---|---|---|---|---|
| 1 | Jorge Barrios | .4663 | 2024 | |
| 2 | Julián Sorondo# | .4525 | 2044 | |
| 3 | Ramón Torres# | .4412 | 2044 | |
| 4 | Kieran Hansen# | .4258 | 2038 | |
| 5 | Orlando Villa | .4149 | 2029 | |
| 5 | Dallas McMurran | .4149 | 2036 | |
| 7 | Guy Toussaint | .4032 | 2033 | |
| 7 | Roger Lakes | .4032 | 2024 | |
| 9 | Eldon McGillivour | .4000 | 2021 | |
| 10 | Tomás Costello | .3976 | 2034 | |
| 11 | Júlio Morín Jr. | .3974 | 2034 | |
| 12 | Orlando Villa | .3970 | 2030 | |
| 13 | Bob Blough | .3956 | 2040 | |
| 14 | Tomás Costello | .3915 | 2037 | |
| 15 | Dave Atkins | .3904 | 2034 | |
| 16 | David McJannett | .3869 | 2026 | |
| 17 | Manny Bendixen | .3848 | 2030 | |
| 18 | Arnie Taylor | .3842 | 2042 | |
| 19 | Tsuneari Hirano# | .3834 | 2038 | |
| 20 | Lu-fang Koo | .3829 | 2033 | |
| 21 | Jon Erickson | .3826 | 2027 | |
| 22 | Herman Cook | .3805 | 2020 | |
| 23 | Nobuharu Ageda | .3788 | 2036 | |
| 24 | Stephen McManus | .3783 | 2031 | |
| 25 | Roberto Soto | .3773 | 2027 | |
| 26 | Sze Qi# | .3772 | 2042 | |
| 27 | Roberto Soto | .3757 | 2035 | |
| 28 | Ramón Torres# | .3750 | 2039 | |
| 29 | Arnie Taylor | .3735 | 2039 | |
| 30 | Markus Thompson | .3733 | 2031 | |
| 31 | Markus Thompson | .3730 | 2030 | |
| 32 | Guillermo Alemán# | .3693 | 2044 | |
| 33 | César Muñóz | .3691 | 2031 | |
| 34 | Richard Edwards | .3687 | 2043 | |
| 35 | Thom Beach | .3685 | 2027 | |
| 36 | Xavier Vásquez | .3670 | 2023 | |
| 37 | Ricardo Collazo | .3660 | 2026 | |
| 38 | Bubba Blevins | .3653 | 2026 | |
| 39 | Stephen Johnson | .3639 | 2029 | |
| 40 | José Vázquez | .3636 | 2031 | |
| 41 | Oscar Henson | .3632 | 2043 | |
| 41 | Sigi Lang | .3632 | 2034 | |
| 43 | Richard Cutshall | .3625 | 2033 | |
| 44 | Mario Piña | .3623 | 2024 | |
| 45 | Ethan Duffy# | .3621 | 2042 | |
| 46 | Emmanuele Lucchetti | .3620 | 2030 | |
| 47 | Yun-qi Chien | .3614 | 2033 | |
| 48 | Eldon McGillivour | .3612 | 2023 | |
| 49 | Orlando Casillas | .3608 | 2034 | |
| 50 | Pat Lloyd | .3601 | 2039 | |
| 51 | Phil Parkinson | .3597 | 2022 | |
| 52 | Claudio Mendoza | .3582 | 2021 | |
| 53 | Jon Erickson | .3580 | 2025 | |
| 54 | Ángel López | .3575 | 2028 | |
| 55 | Jorge López | .3565 | 2029 | |
| 56 | Steve Irwin | .3545 | 2034 | |
| 57 | Cheong-hun Kang | .3543 | 2039 | |
| 58 | Chris Harrell | .3537 | 2036 | |
| 59 | Tomás Costello | .3520 | 2036 | |
| 59 | Anastasio Hernández | .3520 | 2027 | |
| 61 | Roberto Soto | .3518 | 2026 | |
| 62 | Jon Erickson | .3510 | 2024 | |
| 63 | Josh Stafford | .3505 | 2022 | |
| 64 | Félix Medina | .3500 | 2040 | |
| 65 | Román García# | .3499 | 2042 | |
| 66 | Alonso Solís | .3489 | 2024 | |
| 67 | Emílio Gonzáles | .3488 | 2023 | |
| 68 | Pancho Rodríguez | .3485 | 2034 | |
| 69 | Alfred Howard Biggs# | .3481 | 2043 | |
| 70 | Jon Erickson | .3480 | 2020 | |
| 71 | Duane Wills | .3478 | 2033 | |
| 72 | Orlando Casillas | .3472 | 2038 | |
| 73 | David Knight# | .3469 | 2044 | |
| 74 | António Cruz# | .3459 | 2044 | |
| 75 | Gonzalo Perales# | .3441 | 2043 | |
| 76 | Vojtech Farkas | .3431 | 2028 | |
| 76 | Tso-i Wang | .3431 | 2035 | |
| 78 | Manny Rosário | .3429 | 2029 | |
| 79 | Chris Costa | .3416 | 2024 | |
| 80 | Pablo Lugo | .3410 | 2026 | |
| 81 | Pancho Rodríguez | .3409 | 2037 | |
| 82 | Zed Umlaut# | .3408 | 2047 | |
| 83 | Marty Jennings | .3406 | 2028 | |
| 84 | Israel Sanders | .3405 | 2029 | |
| 85 | Roberto Soto | .3397 | 2036 | |
| 86 | John Ricks | .3396 | 2042 | |
| 87 | Sameen Shaw | .3390 | 2037 | |
| 88 | Ken Moore | .3384 | 2035 | |
| 89 | Jorge Mateu | .3372 | 2042 | |
| 90 | Tony Romero | .3369 | 2022 | |
| 91 | Hélio Capriati | .3354 | 2040 | |
| 92 | José Rodríguez | .3348 | 2031 | |
| 93 | Bill Perkins | .3344 | 2039 | |
| 94 | Carlos López | .3343 | 2025 | |
| 95 | Orlando Casillas | .3341 | 2037 | |
| 95 | Augusto Escobar | .3341 | 2028 | |
| 97 | Ed St. James | .3340 | 2030 | |
| 98 | Gary Hopkins | .3333 | 2041 | |
| 99 | Emílio Gonzáles | .3325 | 2024 | |
| 100 | Alonso Márquez | .3323 | 2022 |
