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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | OPS | YEAR | Open Postseason Leaderboard |
|---|---|---|---|---|
| 1 | John Oakes# | 1.2144 | 2025-2026 | |
| 2 | Lorenzo Castro# | 1.2141 | 2018-2018 | |
| 3 | Júlio Ruíz# | 1.2040 | 2022-2022 | |
| 4 | Lorenzo Castillo# | 1.1698 | 2026-2027 | |
| 5 | Dean Smith# | 1.1408 | 2019-2019 | |
| 6 | Jake Hunt# | 1.1333 | 2020-2021 | |
| 7 | Ryan Marshall | 1.1261 | 2017-2017 | |
| 8 | Kiyoemon Aoki | 1.1084 | 2020-2023 | |
| 9 | Lu-po-teh Cheung# | 1.1079 | 2019-2019 | |
| 10 | Joe Burke# | 1.0882 | 2025-2027 | |
| 11 | Atmo Subadio# | 1.0876 | 2026-2026 | |
| 12 | Matt Conway# | 1.0502 | 2018-2018 | |
| 13 | Yoshitoki Tanaka | 1.0500 | 2020-2024 | |
| 14 | Kiyonobu Yamasaki# | 1.0455 | 2017-2017 | |
| 15 | Derek Reaveley | 1.0364 | 2021-2022 | |
| 16 | Ambhoruha Vijayanath# | 1.0284 | 2020-2020 | |
| 17 | Kohei Matsumoto# | 1.0250 | 2025-2027 | |
| 18 | Jay Faulkner | 1.0238 | 2016-2016 | |
| 19 | Ben Frazier | 1.0237 | 2014-2019 | |
| 20 | Shi-kai Tsu# | 1.0203 | 2027-2027 | |
| 21 | Arturo Velásquez# | 1.0086 | 2026-2027 | |
| 22 | Jeffrey Wright | 1.0080 | 2022-2022 | |
| 23 | Jeff Barraclough | .9968 | 2024-2024 | |
| 24 | Nick McBride | .9951 | 2016-2016 | |
| 25 | Don Strickland | .9932 | 2019-2019 | |
| 26 | Kenshin Yamashita# | .9875 | 2021-2022 | |
| 27 | Taro Omori# | .9777 | 2021-2021 | |
| 28 | Guillermo Luna# | .9774 | 2023-2023 | |
| 29 | Danny Griggs# | .9731 | 2020-2020 | |
| 30 | Kendrick Lane | .9661 | 2020-2020 | |
| 31 | Jesús Valenzuela# | .9602 | 2025-2025 | |
| 32 | José Rivera | .9576 | 2015-2015 | |
| 33 | Jerry Gibbs# | .9485 | 2019-2019 | |
| 34 | Tetsu Araki# | .9466 | 2022-2023 | |
| 35 | Billy Daig | .9415 | 2020-2025 | |
| 36 | Tom Wyatt | .9391 | 2019-2020 | |
| 37 | Yuan-zhang Pi# | .9344 | 2026-2027 | |
| 38 | Terry Briggs# | .9240 | 2018-2022 | |
| 39 | Jacques Carpentier | .9214 | 2013-2013 | |
| 40 | Garrett Bennett | .9141 | 2016-2016 | |
| 41 | Juan Guerrero | .9106 | 2021-2025 | |
| 42 | Michael Warren# | .9040 | 2018-2018 | |
| 43 | Federico Cavatta# | .9038 | 2023-2023 | |
| 44 | Cao Ho# | .9037 | 2022-2023 | |
| 45 | Shane Meade | .8997 | 2020-2020 | |
| 46 | Garin Renzenbrink# | .8990 | 2026-2027 | |
| 47 | Motoki Kanno# | .8940 | 2023-2026 | |
| 48 | Oscar Jones# | .8925 | 2020-2021 | |
| 49 | Hsui-chen Shui# | .8837 | 2026-2026 | |
| 50 | Kazuhiro Morita# | .8830 | 2020-2020 | |
| 51 | Ronald Bilderbeek# | .8750 | 2027-2027 | |
| 52 | Tom Hanson# | .8667 | 2026-2027 | |
| 53 | Rafael Pérez | .8663 | 2018-2018 | |
| 54 | Kuemon Yasuda | .8650 | 2017-2017 | |
| 55 | Edgar Smith# | .8641 | 2017-2017 | |
| 56 | Tokaji Sato# | .8614 | 2025-2026 | |
| 57 | Yasukazu Kiyomizu | .8595 | 2017-2017 | |
| 58 | Takuji Hakui | .8571 | 2014-2014 | |
| 59 | Carlos Beltrán | .8562 | 2020-2020 | |
| 60 | Masatake Ishii# | .8550 | 2019-2024 | |
| 61 | Dave Anderson | .8529 | 2021-2023 | |
| 62 | Bo Bing# | .8512 | 2022-2025 | |
| 63 | Takanori Higashi | .8497 | 2013-2013 | |
| 64 | Abid Alamdar# | .8482 | 2024-2024 | |
| 65 | Júlio Rodríguez | .8454 | 2019-2020 | |
| 66 | Yasujiro Uchiyama | .8431 | 2019-2021 | |
| 67 | Michael Gilliland | .8412 | 2019-2021 | |
| 68 | Sang-soo Kim# | .8399 | 2026-2026 | |
| 69 | Frank Hall | .8379 | 2022-2023 | |
| 70 | Luis Rodríguez | .8367 | 2016-2016 | |
| 71 | Oliver Pinches# | .8362 | 2022-2025 | |
| 72 | Taylor Thompson | .8358 | 2014-2014 | |
| 73 | Shawn Cummins# | .8335 | 2021-2024 | |
| 74 | Chandler Eckard# | .8329 | 2024-2025 | |
| 75 | Jonathan Barnes | .8328 | 2013-2013 | |
| 76 | Vihaan Vedant# | .8325 | 2019-2020 | |
| 77 | Jarrod Parrish | .8279 | 2017-2017 | |
| 78 | Claude Bourgoin | .8199 | 2018-2021 | |
| 79 | Daniel Dorsey | .8193 | 2018-2018 | |
| 80 | Wes Alexander# | .8167 | 2023-2025 | |
| 81 | Manuel Baldivía | .8162 | 2024-2024 | |
| 81 | Keith Morris# | .8162 | 2019-2024 | |
| 83 | Tae-kyun Hong# | .8160 | 2024-2024 | |
| 84 | Gianpaolo Salimbeni | .8140 | 2021-2021 | |
| 85 | Amador Bagadion# | .8128 | 2022-2023 | |
| 86 | Raúl Guzmán | .8126 | 2020-2024 | |
| 87 | Elmer Brown | .8120 | 2018-2018 | |
| 87 | Juan Moreno# | .8120 | 2019-2019 | |
| 89 | Shaun Sharp# | .7927 | 2026-2027 | |
| 90 | Will Steele | .7889 | 2022-2023 | |
| 91 | Michel Gérard# | .7877 | 2016-2016 | |
| 92 | Pedro Ornelas | .7867 | 2019-2019 | |
| 93 | Doug Daniels | .7843 | 2018-2023 | |
| 93 | Sadao Masuda# | .7843 | 2024-2024 | |
| 95 | Scott O'Connor# | .7813 | 2020-2021 | |
| 96 | Greg May# | .7787 | 2019-2024 | |
| 97 | Jason Hill | .7775 | 2022-2023 | |
| 98 | Billy Bishop# | .7768 | 2014-2019 | |
| 99 | Felipe Navarro# | .7705 | 2021-2021 | |
| 100 | Masahiro Chikafuji# | .7686 | 2026-2027 |
