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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | OBP | YEAR | Open Career Leaderboard |
|---|---|---|---|---|
| 1 | Ernesto Santiago# | .4713 | 2026 | |
| 2 | Jim Kempenaars# | .4611 | 2032 | |
| 3 | Jim Kempenaars# | .4503 | 2029 | |
| 4 | Paul Frank | .4499 | 2021 | |
| 5 | Reece Wager# | .4343 | 2030 | |
| 6 | Milt Mezzanotte# | .4328 | 2033 | |
| 7 | Milt Mezzanotte# | .4319 | 2031 | |
| 8 | Ernie Horswill# | .4293 | 2032 | |
| 9 | Jorge Hernández# | .4238 | 2033 | |
| 10 | Augusto Reyes# | .4215 | 2033 | |
| 11 | David Vickerson | .4208 | 2026 | |
| 12 | Shi-kai Tsu# | .4204 | 2028 | |
| 13 | Manolo González# | .4179 | 2032 | |
| 14 | Fernando García | .4154 | 2023 | |
| 15 | Jim Kempenaars# | .4147 | 2031 | |
| 16 | Paul Tauber | .4139 | 2022 | |
| 17 | Neal Thacker# | .4113 | 2034 | |
| 18 | Fernando García | .4086 | 2026 | |
| 19 | Kevin Rivière# | .4067 | 2031 | |
| 20 | Drake Ramsey# | .4043 | 2030 | |
| 21 | Fernando García | .4040 | 2025 | |
| 22 | Moo-hyun Boone# | .4033 | 2031 | |
| 23 | Masakazu Ishikawa# | .4026 | 2031 | |
| 24 | Ramón Medina# | .4015 | 2032 | |
| 25 | Jack Butler | .3988 | 2026 | |
| 26 | Paul Frank | .3965 | 2020 | |
| 27 | Nick Jacobson | .3950 | 2017 | |
| 28 | Bernard Richard | .3942 | 2027 | |
| 29 | Maxime Gras | .3941 | 2018 | |
| 30 | Pablo Bermúdez# | .3939 | 2029 | |
| 31 | Dave Ryder# | .3938 | 2033 | |
| 32 | Freddy Rodríguez | .3930 | 2028 | |
| 33 | Isamu Fukuda | .3928 | 2026 | |
| 34 | Abraha Rafiq | .3910 | 2024 | |
| 35 | Joong Guang | .3900 | 2022 | |
| 36 | Mendel Israel# | .3883 | 2022 | |
| 37 | Paco Fernández | .3881 | 2026 | |
| 38 | Eric Case | .3863 | 2020 | |
| 39 | Richard Richards | .3859 | 2022 | |
| 40 | Yen-nien Sun | .3857 | 2028 | |
| 41 | Baskoro Pamungkas# | .3852 | 2024 | |
| 42 | Yoshino Okabe | .3846 | 2018 | |
| 42 | Eugene Axe# | .3846 | 2030 | |
| 44 | Pedro García# | .3837 | 2026 | |
| 45 | Indigo Augustine | .3831 | 2024 | |
| 46 | Kevin Rivière# | .3830 | 2032 | |
| 47 | Fernando García | .3819 | 2022 | |
| 48 | Kent Owen# | .3817 | 2033 | |
| 49 | Dave Carpenter | .3803 | 2017 | |
| 50 | Nick Jacobson | .3802 | 2016 | |
| 51 | António García | .3800 | 2019 | |
| 52 | Harley Ware# | .3789 | 2029 | |
| 53 | Dominique Lepage | .3788 | 2014 | |
| 54 | Dave Townsend | .3786 | 2015 | |
| 55 | Yaichiro Yokoyama# | .3782 | 2027 | |
| 56 | Bill Hoover | .3777 | 2013 | |
| 57 | Roger Pynn# | .3766 | 2031 | |
| 58 | Greg May | .3763 | 2020 | |
| 59 | David Newsome# | .3755 | 2034 | |
| 60 | Ryoichi Kiyomizu | .3748 | 2023 | |
| 61 | Mei Ou-yang | .3743 | 2025 | |
| 62 | Griffin Roberge# | .3742 | 2028 | |
| 63 | Billy Bishop | .3740 | 2015 | |
| 64 | Juan Flores | .3734 | 2025 | |
| 65 | Addy de Zeeuw# | .3723 | 2026 | |
| 65 | Marnix Rietkerk | .3723 | 2024 | |
| 67 | Pedro García# | .3697 | 2025 | |
| 68 | Gonzalo Rodríguez# | .3689 | 2033 | |
| 69 | Nelson Marcial# | .3685 | 2034 | |
| 70 | Paul Robinson | .3669 | 2019 | |
| 71 | Ryan Armstrong | .3657 | 2022 | |
| 72 | Zachary Wonnocott | .3651 | 2020 | |
| 72 | Yoshino Okabe | .3651 | 2016 | |
| 74 | Ken Richardson | .3644 | 2023 | |
| 75 | Felipe Castillo | .3622 | 2022 | |
| 76 | Yoshino Okabe | .3620 | 2017 | |
| 77 | Joong Guang | .3614 | 2020 | |
| 78 | Dong Kan# | .3612 | 2024 | |
| 79 | Shane Gross# | .3610 | 2033 | |
| 80 | Mutsuhito Yamamoto# | .3607 | 2026 | |
| 81 | Cecil Mauldin | .3605 | 2016 | |
| 82 | Charlie Grant | .3598 | 2017 | |
| 83 | Ron Townsend | .3597 | 2018 | |
| 84 | Emílio Carrillo | .3587 | 2023 | |
| 85 | Jack Butler | .3567 | 2027 | |
| 86 | Micah Lee# | .3558 | 2032 | |
| 87 | Horiuchi Suzuki | .3556 | 2023 | |
| 88 | Masami Tanaka | .3553 | 2024 | |
| 89 | Basker Sahni# | .3542 | 2020 | |
| 89 | Gonzalo Rodríguez# | .3542 | 2032 | |
| 91 | Chris Lebeavois | .3541 | 2016 | |
| 92 | Steve Osburn# | .3538 | 2031 | |
| 93 | Susumu Miyata | .3535 | 2027 | |
| 94 | Domingo Cruz | .3529 | 2028 | |
| 95 | Kelly Carpenter | .3528 | 2023 | |
| 96 | Mendel Israel# | .3520 | 2021 | |
| 97 | Cristo Morán# | .3515 | 2026 | |
| 98 | Mutsuhito Yamamoto# | .3495 | 2025 | |
| 99 | Jody Fread# | .3492 | 2033 | |
| 100 | Elmer Brown | .3487 | 2018 |
