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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | OBP | YEAR | Open Career Leaderboard |
|---|---|---|---|---|
| 1 | George Valentine | .4918 | 2015 | |
| 2 | George Valentine | .4746 | 2014 | |
| 3 | Albert Morán* | .4559 | 2024 | |
| 3 | Christian Walls | .4559 | 2014 | |
| 5 | Tony Dyer* | .4547 | 2014 | |
| 6 | Christian Walls | .4543 | 2015 | |
| 7 | John Downing* | .4521 | 2014 | |
| 8 | Tony Dyer* | .4476 | 2018 | |
| 9 | John Downing* | .4458 | 2019 | |
| 10 | Christian Walls | .4449 | 2016 | |
| 11 | Tony Dyer* | .4439 | 2016 | |
| 12 | Tony Dyer* | .4292 | 2017 | |
| 13 | Robbie Roach | .4273 | 2016 | |
| 14 | John Downing* | .4225 | 2015 | |
| 15 | Tony Dyer* | .4224 | 2013 | |
| 16 | John Downing* | .4190 | 2016 | |
| 17 | Tony Dyer* | .4158 | 2019 | |
| 18 | Tae-cho Han | .4140 | 2036 | |
| 19 | Urs van Munster | .4137 | 2034 | |
| 20 | Joey Coco | .4130 | 2040 | |
| 21 | Albert Morán* | .4126 | 2023 | |
| 22 | Tom Bleasdale# | .4124 | 2052 | |
| 23 | Tony Dyer* | .4111 | 2015 | |
| 24 | Robbie Roach | .4089 | 2017 | |
| 25 | Kanko Umaba* | .4085 | 2039 | |
| 26 | Urs van Munster | .4072 | 2031 | |
| 27 | Wilfred McLaughlin* | .4052 | 2020 | |
| 28 | Albert Morán* | .4040 | 2022 | |
| 29 | John Downing* | .4032 | 2018 | |
| 30 | Quincy Wass | .4027 | 2044 | |
| 31 | Joseph Papasogli | .4005 | 2037 | |
| 32 | Michael Greene* | .4000 | 2018 | |
| 33 | John Downing* | .3991 | 2013 | |
| 34 | Robert Bond | .3984 | 2014 | |
| 35 | Wilfred McLaughlin* | .3982 | 2025 | |
| 36 | Arturo Hernández | .3971 | 2015 | |
| 37 | Christian Walls | .3960 | 2017 | |
| 38 | Benno Luby# | .3954 | 2041 | |
| 39 | Benedito Ahulani# | .3947 | 2048 | |
| 40 | Jonathan Gunner | .3927 | 2039 | |
| 41 | Jonathan Gunner | .3914 | 2038 | |
| 42 | Jae-seop Byeon# | .3913 | 2045 | |
| 43 | Neil Lawson | .3900 | 2022 | |
| 44 | Jonathan Gunner | .3890 | 2037 | |
| 45 | John Downing* | .3880 | 2020 | |
| 46 | Eisse van Opdorp# | .3878 | 2041 | |
| 47 | Benno Luby# | .3874 | 2046 | |
| 47 | Arturo Hernández | .3874 | 2014 | |
| 49 | Earl Ellis | .3871 | 2014 | |
| 50 | Jorge Napolez# | .3835 | 2046 | |
| 51 | Júlio Gruzmán | .3834 | 2017 | |
| 52 | Rubén Nuañez# | .3830 | 2048 | |
| 53 | Francisco García | .3825 | 2029 | |
| 54 | Jorge Napolez# | .3819 | 2047 | |
| 55 | Kanko Umaba* | .3804 | 2037 | |
| 56 | Urs van Munster | .3796 | 2032 | |
| 57 | Rubén Nuañez# | .3794 | 2049 | |
| 58 | Quincy Wass | .3780 | 2043 | |
| 58 | John Wilkerson# | .3780 | 2049 | |
| 60 | Wilfred McLaughlin* | .3768 | 2021 | |
| 61 | Koryusai Ohayashi# | .3763 | 2047 | |
| 62 | Albert Morán* | .3754 | 2027 | |
| 63 | Nathan Tanner* | .3753 | 2027 | |
| 64 | Ishaan Swan# | .3742 | 2051 | |
| 65 | Benno Luby# | .3740 | 2043 | |
| 66 | Urs van Munster | .3738 | 2038 | |
| 67 | Tae-cho Han | .3736 | 2035 | |
| 68 | Obke Veenman# | .3733 | 2051 | |
| 69 | Dídac Nores# | .3732 | 2043 | |
| 70 | Michael Greene* | .3722 | 2022 | |
| 71 | Wilfred McLaughlin* | .3721 | 2022 | |
| 72 | Takashi Noda | .3716 | 2034 | |
| 72 | Ron Bascombe | .3716 | 2018 | |
| 74 | Earl Ellis | .3712 | 2013 | |
| 75 | Albert Morán* | .3710 | 2025 | |
| 76 | Manuel Carmona | .3706 | 2034 | |
| 77 | Ta-hye Keng# | .3690 | 2054 | |
| 78 | Wilfred McLaughlin* | .3689 | 2023 | |
| 79 | Michael Greene* | .3688 | 2023 | |
| 80 | Curt Webb | .3687 | 2019 | |
| 81 | Nathan Tanner* | .3680 | 2026 | |
| 82 | Urs van Munster | .3679 | 2033 | |
| 83 | Jonathan Gunner | .3673 | 2041 | |
| 84 | Albert Morán* | .3668 | 2026 | |
| 85 | Willie McGirt | .3658 | 2037 | |
| 86 | Júlio Gruzmán | .3657 | 2015 | |
| 87 | Júlio Gruzmán | .3656 | 2013 | |
| 88 | Ramón Rodríguez | .3647 | 2042 | |
| 89 | Joey Coco | .3645 | 2038 | |
| 90 | Aukukero Mincarlie | .3631 | 2013 | |
| 91 | Neil Lawson | .3619 | 2024 | |
| 92 | Kanko Umaba* | .3610 | 2046 | |
| 93 | Gah-fat Liu | .3592 | 2044 | |
| 94 | Júlio Gruzmán | .3584 | 2019 | |
| 95 | Leonardo López | .3582 | 2013 | |
| 96 | Júlio Gruzmán | .3575 | 2018 | |
| 96 | Gah-fat Liu | .3575 | 2045 | |
| 98 | Taikan Miura | .3574 | 2016 | |
| 99 | Joseph Papasogli | .3560 | 2036 | |
| 100 | Júlio Gruzmán | .3559 | 2016 |
