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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | OBP | YEAR | Open Career Leaderboard |
|---|---|---|---|---|
| 1 | George Valentine | .4778 | 2017 | |
| 2 | John Ennis# | .4735 | 2029 | |
| 3 | Je-myung Yu# | .4706 | 2035 | |
| 4 | John Ennis# | .4617 | 2028 | |
| 5 | Je-myung Yu# | .4553 | 2037 | |
| 6 | Kenny Webster | .4465 | 2025 | |
| 7 | George Valentine | .4424 | 2016 | |
| 8 | EP Weston | .4417 | 2028 | |
| 9 | Jeff Walsh | .4398 | 2017 | |
| 10 | Roberto Escues | .4361 | 2028 | |
| 11 | Jesús Orozco | .4351 | 2022 | |
| 12 | Bryan Manning | .4336 | 2018 | |
| 13 | António Mendoza | .4333 | 2031 | |
| 14 | Javier Sánchez# | .4304 | 2026 | |
| 15 | Mario Ramos# | .4293 | 2033 | |
| 16 | Tadayoshi Watanabe# | .4283 | 2035 | |
| 16 | Je-myung Yu# | .4283 | 2036 | |
| 18 | Wilfrid Savary | .4279 | 2015 | |
| 19 | Tadayoshi Watanabe# | .4260 | 2036 | |
| 20 | Ed Mellor# | .4231 | 2037 | |
| 21 | Chad Armstrong* | .4222 | 2026 | |
| 22 | John Brewer | .4213 | 2022 | |
| 23 | Jerry Harris | .4211 | 2018 | |
| 24 | Cristo Nieto | .4206 | 2016 | |
| 25 | Jesús Orozco | .4194 | 2023 | |
| 26 | Obidiah Lewis# | .4169 | 2035 | |
| 27 | Akihiko Oike | .4138 | 2020 | |
| 28 | Jimbob Ghostkeeper# | .4119 | 2040 | |
| 29 | Chris Rice | .4114 | 2021 | |
| 30 | Todd Henry | .4105 | 2030 | |
| 31 | Derek Bangert# | .4092 | 2032 | |
| 32 | DeMarvion Overshown# | .4081 | 2039 | |
| 33 | Jimmy Massey | .4078 | 2015 | |
| 34 | Ed Mellor# | .4072 | 2036 | |
| 35 | Derek Bangert# | .4070 | 2031 | |
| 36 | John Brewer | .4059 | 2021 | |
| 37 | Jesús Orozco | .4044 | 2024 | |
| 38 | Kenny Webster | .4041 | 2024 | |
| 39 | Javier Sánchez# | .4033 | 2032 | |
| 40 | Chris McKinney | .4025 | 2024 | |
| 41 | Roberto Rodríguez | .4022 | 2017 | |
| 42 | Sergio Ortíz | .4008 | 2030 | |
| 43 | Akihiko Oike | .4004 | 2018 | |
| 44 | Dewitt Hopper# | .4000 | 2034 | |
| 45 | Kenny Webster | .3996 | 2023 | |
| 46 | Kenny Webster | .3992 | 2022 | |
| 47 | Tadayoshi Watanabe# | .3991 | 2040 | |
| 47 | Akihiko Oike | .3991 | 2019 | |
| 49 | Bart Lewis | .3987 | 2035 | |
| 50 | Qi-zhen Loong | .3978 | 2027 | |
| 51 | Keith Bridges | .3976 | 2020 | |
| 52 | Wilfrid Savary | .3968 | 2016 | |
| 52 | Keith Bridges | .3968 | 2019 | |
| 54 | Al Anderson | .3965 | 2024 | |
| 55 | Roberto Escues | .3964 | 2027 | |
| 56 | Chris McKinney | .3962 | 2030 | |
| 57 | Mark Toope# | .3957 | 2041 | |
| 58 | Ed Mellor# | .3944 | 2038 | |
| 59 | Carl Good | .3932 | 2019 | |
| 60 | José Rodríguez | .3915 | 2018 | |
| 61 | José Rodríguez | .3908 | 2016 | |
| 62 | Javier Seco# | .3902 | 2038 | |
| 63 | Jesús Orozco | .3898 | 2025 | |
| 64 | Yun Yen | .3892 | 2024 | |
| 65 | Jesús Orozco | .3883 | 2021 | |
| 66 | Cole Shaffer | .3878 | 2024 | |
| 67 | Kenny Webster | .3873 | 2030 | |
| 68 | Chris McKinney | .3870 | 2025 | |
| 69 | Rafael Arredondo | .3864 | 2030 | |
| 70 | Doug Allerdale# | .3863 | 2035 | |
| 71 | Eric Ward | .3860 | 2026 | |
| 72 | Jesús Reyes | .3856 | 2023 | |
| 73 | Aurelio Vázquez | .3854 | 2019 | |
| 74 | Ron Goodwin | .3853 | 2022 | |
| 75 | Chris McKinney | .3848 | 2029 | |
| 76 | Alex Avery# | .3846 | 2040 | |
| 77 | Lonnie Conrad | .3844 | 2023 | |
| 78 | Bart Lewis | .3843 | 2034 | |
| 79 | SaQwan Hackett | .3827 | 2035 | |
| 80 | Akihiko Oike | .3826 | 2021 | |
| 81 | César Durán | .3824 | 2020 | |
| 82 | Carl Gore | .3820 | 2022 | |
| 83 | Javier Sánchez# | .3816 | 2025 | |
| 84 | Todd Henry | .3811 | 2029 | |
| 85 | César Durán | .3810 | 2019 | |
| 86 | Chris Rice | .3800 | 2016 | |
| 87 | Sergio Ortíz | .3798 | 2025 | |
| 88 | John Ennis# | .3795 | 2027 | |
| 89 | Danny Trautmann# | .3790 | 2033 | |
| 90 | Ed Mellor# | .3764 | 2035 | |
| 91 | Raúl Aguirre | .3755 | 2027 | |
| 91 | Doug Allerdale# | .3755 | 2034 | |
| 93 | Bertrand Sunter | .3742 | 2018 | |
| 94 | Jimmy Massey | .3732 | 2016 | |
| 95 | Vance Cannon | .3729 | 2016 | |
| 96 | César Durán | .3717 | 2022 | |
| 96 | Todd Henry | .3717 | 2031 | |
| 98 | Clay Rush | .3714 | 2028 | |
| 99 | Edgar Baeza# | .3712 | 2041 | |
| 100 | Sergio Ortíz | .3708 | 2028 |
