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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 | Albert Morán | .4126 | 2023 | |
| 21 | Tony Dyer* | .4111 | 2015 | |
| 22 | Robbie Roach | .4089 | 2017 | |
| 23 | Urs van Munster# | .4072 | 2031 | |
| 24 | Wilfred McLaughlin | .4052 | 2020 | |
| 25 | Albert Morán | .4040 | 2022 | |
| 26 | John Downing | .4032 | 2018 | |
| 27 | Joseph Papasogli# | .4005 | 2037 | |
| 28 | Michael Greene* | .4000 | 2018 | |
| 29 | Tony Dyer* | .3991 | 2021 | |
| 29 | John Downing | .3991 | 2013 | |
| 31 | Robert Bond | .3984 | 2014 | |
| 32 | Wilfred McLaughlin | .3982 | 2025 | |
| 33 | Arturo Hernández | .3971 | 2015 | |
| 34 | Christian Walls | .3960 | 2017 | |
| 35 | Neil Lawson | .3900 | 2022 | |
| 36 | Jonathan Gunner# | .3890 | 2037 | |
| 37 | John Downing | .3880 | 2020 | |
| 38 | Arturo Hernández | .3874 | 2014 | |
| 39 | Tae-cho Han# | .3872 | 2032 | |
| 40 | Earl Ellis | .3871 | 2014 | |
| 41 | Júlio Gruzmán | .3834 | 2017 | |
| 42 | Francisco García# | .3825 | 2029 | |
| 43 | Kanko Umaba# | .3804 | 2037 | |
| 44 | Urs van Munster# | .3796 | 2032 | |
| 45 | Wilfred McLaughlin | .3768 | 2021 | |
| 45 | Scott Kerin# | .3768 | 2032 | |
| 47 | Albert Morán | .3754 | 2027 | |
| 48 | Nathan Tanner# | .3753 | 2027 | |
| 49 | Tae-cho Han# | .3736 | 2035 | |
| 50 | Tae-cho Han# | .3723 | 2034 | |
| 51 | Michael Greene* | .3722 | 2022 | |
| 52 | Wilfred McLaughlin | .3721 | 2022 | |
| 53 | Takashi Noda# | .3716 | 2034 | |
| 53 | Ron Bascombe | .3716 | 2018 | |
| 55 | Earl Ellis | .3712 | 2013 | |
| 56 | Albert Morán | .3710 | 2025 | |
| 57 | Manuel Carmona# | .3706 | 2034 | |
| 58 | Wilfred McLaughlin | .3689 | 2023 | |
| 59 | Michael Greene* | .3688 | 2023 | |
| 60 | Curt Webb | .3687 | 2019 | |
| 61 | José Alonso | .3682 | 2023 | |
| 62 | Nathan Tanner# | .3680 | 2026 | |
| 63 | Urs van Munster# | .3679 | 2033 | |
| 64 | Albert Morán | .3668 | 2026 | |
| 65 | Willie McGirt# | .3658 | 2037 | |
| 66 | Júlio Gruzmán | .3657 | 2015 | |
| 67 | Júlio Gruzmán | .3656 | 2013 | |
| 68 | Scott Kerin# | .3654 | 2033 | |
| 69 | Aukukero Mincarlie | .3631 | 2013 | |
| 70 | Neil Lawson | .3619 | 2024 | |
| 71 | Júlio Gruzmán | .3584 | 2019 | |
| 72 | Leonardo López | .3582 | 2013 | |
| 73 | Júlio Gruzmán | .3575 | 2018 | |
| 74 | Taikan Miura | .3574 | 2016 | |
| 75 | Manuel Carmona# | .3570 | 2035 | |
| 76 | Joseph Papasogli# | .3560 | 2036 | |
| 77 | Júlio Gruzmán | .3559 | 2016 | |
| 78 | John Downing | .3557 | 2021 | |
| 79 | Jesús Morales# | .3542 | 2031 | |
| 80 | Nathan Tanner# | .3531 | 2028 | |
| 81 | Francisco García# | .3510 | 2030 | |
| 82 | Albert Morán | .3503 | 2021 | |
| 83 | Taikan Miura | .3489 | 2017 | |
| 84 | Albert Morán | .3486 | 2019 | |
| 85 | David Smith | .3479 | 2030 | |
| 86 | Valentín Guzmán | .3469 | 2030 | |
| 87 | Jorge Lucero | .3463 | 2014 | |
| 88 | Héctor Cortéz | .3459 | 2020 | |
| 89 | Jeffrey Barker | .3453 | 2016 | |
| 90 | Pierre Bernard# | .3452 | 2033 | |
| 91 | José Alonso | .3447 | 2024 | |
| 92 | Júlio Gruzmán | .3446 | 2014 | |
| 93 | Juan González | .3442 | 2026 | |
| 94 | Albert Morán | .3439 | 2020 | |
| 95 | Urs van Munster# | .3397 | 2035 | |
| 96 | Robbie Roach | .3391 | 2019 | |
| 97 | Joey Jones | .3388 | 2022 | |
| 98 | Joey Jones | .3385 | 2023 | |
| 99 | Nathan Tanner# | .3376 | 2029 | |
| 100 | Todd Williams | .3355 | 2025 |
