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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | OBP | YEAR | Open Postseason Career Leaderboard |
|---|---|---|---|---|
| 1 | Carlos Calderón | .6087 | 2016 | |
| 2 | Jake Hunt# | .5814 | 2021 | |
| 3 | Lorenzo Castro# | .5778 | 2018 | |
| 4 | William Cunningham# | .5714 | 2017 | |
| 4 | Aziz Sanchez# | .5714 | 2022 | |
| 4 | John Oakes# | .5714 | 2026 | |
| 7 | Ricardo Vázquez# | .5652 | 2021 | |
| 8 | Don Orton# | .5625 | 2021 | |
| 9 | Dave Olson | .5517 | 2017 | |
| 10 | Shawn Cummins# | .5323 | 2023 | |
| 11 | Kazuhiro Kojima | .5294 | 2020 | |
| 12 | Kiyoemon Kawano# | .5263 | 2028 | |
| 13 | Motoyasu Matsushita# | .5200 | 2018 | |
| 14 | Dave Coulter | .5185 | 2019 | |
| 15 | Juan Guerrero | .5172 | 2025 | |
| 16 | Arturo Velásquez# | .5152 | 2026 | |
| 16 | Joe Burke# | .5152 | 2026 | |
| 18 | Derek Reaveley | .5116 | 2021 | |
| 19 | Jasper Anderson | .5000 | 2023 | |
| 19 | Kiyoemon Aoki | .5000 | 2023 | |
| 19 | Tee Wilson | .5000 | 2017 | |
| 19 | Jay Faulkner | .5000 | 2016 | |
| 19 | Fernando Germán# | .5000 | 2020 | |
| 19 | Keith Morris# | .5000 | 2021 | |
| 19 | Bård Tengesdal# | .5000 | 2019 | |
| 19 | Valentín Velasco# | .5000 | 2025 | |
| 19 | Martin Jenkins | .5000 | 2019 | |
| 19 | Kevin Meyer# | .5000 | 2026 | |
| 29 | Yoshitoki Tanaka | .4921 | 2021 | |
| 30 | Garin Renzenbrink# | .4857 | 2027 | |
| 31 | José Rivera | .4848 | 2015 | |
| 32 | Atmo Subadio# | .4839 | 2026 | |
| 32 | Takuma Yamamoto | .4839 | 2019 | |
| 34 | Tom Hanson# | .4808 | 2026 | |
| 35 | Takayuki Ishikawa# | .4783 | 2027 | |
| 36 | Kohei Matsumoto# | .4773 | 2025 | |
| 37 | Yeong-il Kim# | .4762 | 2026 | |
| 37 | Mitsuzuka Otsuka# | .4762 | 2022 | |
| 39 | Bo Bing# | .4722 | 2023 | |
| 40 | Terry Briggs# | .4694 | 2019 | |
| 41 | Jake Hunt# | .4688 | 2020 | |
| 42 | Michael Warren# | .4681 | 2018 | |
| 43 | Brandon Wooddisse# | .4667 | 2027 | |
| 43 | Oliver Pinches | .4667 | 2022 | |
| 45 | Kiyonobu Yamasaki# | .4655 | 2017 | |
| 46 | Jeffrey Wright | .4651 | 2022 | |
| 47 | Felipe Castillo | .4634 | 2022 | |
| 48 | Mario Romero# | .4615 | 2021 | |
| 48 | Kiyoemon Aoki | .4615 | 2020 | |
| 50 | Ramón De Jesús# | .4595 | 2027 | |
| 50 | Nathan Sewell# | .4595 | 2026 | |
| 52 | Ken Paul# | .4590 | 2028 | |
| 53 | Woodrow Maxwell | .4583 | 2022 | |
| 53 | Derek Reaveley | .4583 | 2022 | |
| 53 | John Harrison# | .4583 | 2017 | |
| 53 | Don Strickland | .4583 | 2019 | |
| 57 | António Silva | .4571 | 2026 | |
| 58 | Greg May | .4565 | 2020 | |
| 59 | Nick McBride | .4545 | 2016 | |
| 60 | Shane Meade | .4524 | 2020 | |
| 61 | Robert Sumption | .4516 | 2024 | |
| 62 | Taro Omori# | .4483 | 2021 | |
| 63 | Kenshin Yamashita# | .4468 | 2022 | |
| 64 | Tae-kyun Hong# | .4464 | 2024 | |
| 65 | Hsui-chen Shui# | .4462 | 2026 | |
| 66 | Wyatt Lewis | .4444 | 2019 | |
| 66 | Masami Tanaka# | .4444 | 2023 | |
| 66 | Carlos Beltrán | .4444 | 2020 | |
| 69 | Ryan Marshall | .4419 | 2017 | |
| 69 | Ben Frazier | .4419 | 2014 | |
| 71 | Kohei Matsumoto# | .4412 | 2026 | |
| 72 | Vij Vedavyasa | .4400 | 2025 | |
| 72 | Floyd Collins# | .4400 | 2028 | |
| 72 | Will Steele | .4400 | 2022 | |
| 75 | Jesús Valenzuela# | .4375 | 2025 | |
| 76 | John Oakes# | .4348 | 2025 | |
| 77 | Lu-po-teh Cheung# | .4340 | 2019 | |
| 78 | Matthew Robinson# | .4333 | 2028 | |
| 78 | Tetsu Araki# | .4333 | 2023 | |
| 78 | Chandler Eckard# | .4333 | 2025 | |
| 81 | Doug Daniels | .4324 | 2018 | |
| 82 | Wladimir Esser# | .4318 | 2028 | |
| 82 | Tom Wyatt | .4318 | 2019 | |
| 82 | Raúl Guzmán | .4318 | 2021 | |
| 85 | Herman Wolf# | .4314 | 2028 | |
| 86 | Federico Cavatta# | .4310 | 2023 | |
| 87 | Ramón Ruíz | .4286 | 2021 | |
| 87 | Gary Ferris | .4286 | 2012 | |
| 89 | Gianpaolo Salimbeni | .4262 | 2021 | |
| 90 | Vihaan Vedant# | .4259 | 2020 | |
| 91 | Michael Cook | .4255 | 2019 | |
| 92 | Shoji Ando# | .4237 | 2028 | |
| 92 | Takanori Higashi | .4237 | 2013 | |
| 94 | Pedro Ornelas | .4231 | 2019 | |
| 94 | Motonobu Ikeda | .4231 | 2017 | |
| 94 | Ashton Latham | .4231 | 2016 | |
| 97 | Jerry Gibbs | .4222 | 2019 | |
| 97 | Kieran Hurd# | .4222 | 2025 | |
| 99 | Bo Bing# | .4194 | 2024 | |
| 99 | Cristián Rivera# | .4194 | 2024 |
