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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | OBP | YEAR | Open Career Leaderboard |
|---|---|---|---|---|
| 1 | Myron Rosenbalm | .4432 | 2030 | |
| 2 | Shojiro Ueda | .4416 | 2023 | |
| 3 | Jeff Rutherford | .4413 | 2023 | |
| 4 | Pedro Colón | .4374 | 2030 | |
| 5 | Fred Meyer | .4279 | 2023 | |
| 6 | Bob Maher | .4195 | 2028 | |
| 7 | Charles MacMurdo | .4188 | 2046 | |
| 8 | Pepe Reyes | .4169 | 2025 | |
| 9 | Marcos Roa | .4157 | 2027 | |
| 10 | Ron Lawrence | .4141 | 2038 | |
| 11 | Joe Karnowski | .4129 | 2036 | |
| 12 | Roberto Sánchez | .4122 | 2023 | |
| 13 | Alejandro Santiago | .4104 | 2029 | |
| 14 | Qing-nian Zexian | .4087 | 2034 | |
| 15 | Mike Sanderson | .4068 | 2035 | |
| 16 | Raphaël Duval | .4058 | 2035 | |
| 17 | Imbart Baars | .4048 | 2042 | |
| 18 | Ricardo Pacheco | .4046 | 2024 | |
| 19 | Lauren Hilfiker | .4044 | 2036 | |
| 19 | Lupo Cotto | .4044 | 2025 | |
| 21 | Vincent Klein | .4038 | 2030 | |
| 22 | Lowell Moon | .4037 | 2027 | |
| 23 | Ron Lawrence | .4035 | 2037 | |
| 24 | Marcel Roks | .4024 | 2032 | |
| 25 | Christian Blair | .4018 | 2022 | |
| 26 | José Ortega | .3972 | 2022 | |
| 27 | Caspar Fewings | .3963 | 2042 | |
| 28 | Jiro Miyake | .3946 | 2040 | |
| 29 | Robert Shannon | .3937 | 2042 | |
| 30 | Christiaan Bunschoten# | .3922 | 2041 | |
| 31 | Andrew Hall | .3914 | 2023 | |
| 32 | Scott Britt | .3913 | 2023 | |
| 33 | Pedro Reyes | .3898 | 2032 | |
| 34 | Paul Pitts | .3890 | 2043 | |
| 35 | Juan Arellano | .3888 | 2037 | |
| 36 | Pancho Coloma | .3879 | 2038 | |
| 37 | Cory Hansen | .3872 | 2020 | |
| 38 | Melvin Barnett | .3870 | 2048 | |
| 39 | Scott Ramsey | .3867 | 2028 | |
| 40 | Joel Iyiegbuniwe | .3856 | 2038 | |
| 41 | Izaak Gerkis | .3853 | 2042 | |
| 41 | Dennis Moore# | .3853 | 2045 | |
| 43 | Manuel Cuevas | .3848 | 2047 | |
| 44 | Howard Lee | .3846 | 2034 | |
| 44 | Chong-yee Au-Yong | .3846 | 2033 | |
| 44 | Dan Chrzan | .3846 | 2033 | |
| 47 | Gustavo Pérez | .3808 | 2053 | |
| 48 | Cai-fei Sung | .3805 | 2051 | |
| 49 | Nikolai Volkoff# | .3801 | 2038 | |
| 50 | Mario Roldán | .3799 | 2044 | |
| 51 | Mike Cook | .3793 | 2022 | |
| 52 | Bill Chaundler | .3788 | 2033 | |
| 53 | Greg Bugarin | .3787 | 2034 | |
| 54 | Dean Jackson | .3784 | 2035 | |
| 55 | Eddie Sachs | .3776 | 2030 | |
| 56 | Nikolai Volkoff# | .3775 | 2039 | |
| 57 | Myron Rosenbalm | .3764 | 2029 | |
| 58 | Tom Gray | .3759 | 2047 | |
| 59 | Ezequiel Oacia | .3758 | 2036 | |
| 60 | Zhong-yi Yun# | .3757 | 2044 | |
| 61 | Kwi-tae Im | .3750 | 2050 | |
| 62 | Héctor Estrada# | .3743 | 2055 | |
| 63 | Garm van Opdorp | .3739 | 2042 | |
| 64 | Jesús Reyes | .3730 | 2020 | |
| 65 | Dragoljub Kandic | .3723 | 2038 | |
| 66 | Francisco Vargas | .3722 | 2035 | |
| 67 | Gregory Jones | .3716 | 2047 | |
| 68 | Hoyt Wall# | .3696 | 2055 | |
| 69 | Domingo Trujillo | .3681 | 2035 | |
| 70 | Octávio Zúñiga | .3676 | 2021 | |
| 71 | Miguel Juárez | .3663 | 2020 | |
| 72 | António Orozco | .3643 | 2045 | |
| 73 | Armando Pacheco | .3630 | 2033 | |
| 74 | Ahti Riikonen | .3627 | 2052 | |
| 75 | Josip Primorac | .3626 | 2038 | |
| 76 | Rubén Alvarado | .3625 | 2024 | |
| 77 | Alfredo Sánchez | .3621 | 2031 | |
| 78 | Matt Fightmaster# | .3614 | 2052 | |
| 78 | Pancho Coloma | .3614 | 2039 | |
| 80 | Luis Concepción# | .3607 | 2045 | |
| 81 | Dawit Lihalakha | .3606 | 2026 | |
| 82 | Caspar Fewings | .3605 | 2041 | |
| 83 | Gustavo Pérez | .3604 | 2052 | |
| 83 | Carlos Rodríguez | .3604 | 2034 | |
| 85 | Luis Flores | .3599 | 2045 | |
| 86 | Pat Geldart | .3557 | 2040 | |
| 86 | John Thompson | .3557 | 2024 | |
| 86 | Chong-yee Au-Yong | .3557 | 2032 | |
| 89 | Andrew Potter | .3556 | 2048 | |
| 90 | Ted Tullo | .3551 | 2031 | |
| 91 | Gale Boetticher# | .3548 | 2054 | |
| 92 | Octávio Zúñiga | .3544 | 2022 | |
| 93 | Abraham Phelps | .3543 | 2030 | |
| 94 | Carlos González | .3533 | 2042 | |
| 95 | Francisco Guerra | .3526 | 2031 | |
| 96 | Yoshiki Ito | .3513 | 2040 | |
| 97 | Dave Hill | .3509 | 2043 | |
| 98 | Doug Hall# | .3508 | 2055 | |
| 99 | Nicodemo Nardone | .3506 | 2040 | |
| 100 | Gerald Merendino | .3500 | 2029 |
