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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | SLG | YEAR | Open Career Leaderboard |
|---|---|---|---|---|
| 1 | Kiyonobu Yamasaki# | .6912 | 2020 | |
| 2 | Kiyonobu Yamasaki# | .6540 | 2024 | |
| 3 | Kiyonobu Yamasaki# | .6348 | 2030 | |
| 4 | Kiyonobu Yamasaki# | .5979 | 2021 | |
| 5 | Bartolo Valentín | .5954 | 2020 | |
| 6 | Ken Forryan | .5908 | 2018 | |
| 7 | Jorge Martínez | .5901 | 2019 | |
| 8 | David Lewis | .5847 | 2019 | |
| 9 | Tim Raines | .5838 | 2022 | |
| 10 | Kiyonobu Yamasaki# | .5823 | 2025 | |
| 11 | Kiyonobu Yamasaki# | .5821 | 2022 | |
| 12 | Harley Fisher | .5815 | 2017 | |
| 13 | Kawanari Takahashi# | .5808 | 2025 | |
| 14 | Octávio García | .5806 | 2021 | |
| 15 | Fernando Germán# | .5681 | 2023 | |
| 16 | Bob Hayes | .5670 | 2020 | |
| 17 | Nadir Rizvi# | .5589 | 2024 | |
| 18 | Tim Raines | .5569 | 2018 | |
| 19 | Kiyonobu Yamasaki# | .5561 | 2028 | |
| 20 | Kawanari Takahashi# | .5554 | 2027 | |
| 21 | Tim Raines | .5537 | 2015 | |
| 22 | Fernando Germán# | .5520 | 2022 | |
| 23 | Carlos Ávila | .5518 | 2021 | |
| 24 | Andrew Weber | .5497 | 2023 | |
| 25 | Octávio García | .5473 | 2023 | |
| 26 | Allan Jackson# | .5468 | 2026 | |
| 27 | Kiyonobu Yamasaki# | .5453 | 2031 | |
| 28 | Edgar Smith | .5393 | 2026 | |
| 29 | P.J. Baker | .5368 | 2017 | |
| 30 | Bartolo Valentín | .5360 | 2021 | |
| 31 | Bartolo Valentín | .5359 | 2023 | |
| 32 | Raymond Moor | .5349 | 2014 | |
| 33 | Kawanari Takahashi# | .5298 | 2030 | |
| 34 | Mike Anderson | .5284 | 2025 | |
| 35 | Sergio Esquivel | .5277 | 2019 | |
| 36 | Bruce Joyner | .5274 | 2018 | |
| 37 | Jeffrey Henderson# | .5270 | 2026 | |
| 38 | Octávio García | .5264 | 2024 | |
| 39 | Tim Raines | .5263 | 2014 | |
| 40 | Kiyonobu Yamasaki# | .5251 | 2029 | |
| 41 | Rob Redford | .5214 | 2019 | |
| 42 | Will McMahon | .5190 | 2019 | |
| 43 | Jeffrey Henderson# | .5182 | 2027 | |
| 44 | Tim Raines | .5178 | 2017 | |
| 45 | Oliver North# | .5164 | 2021 | |
| 46 | Carlos Ávila | .5161 | 2023 | |
| 47 | Mark Roberts | .5129 | 2025 | |
| 48 | Bartolo Valentín | .5111 | 2022 | |
| 49 | Ken Forryan | .5108 | 2015 | |
| 50 | Jeffrey Henderson# | .5098 | 2028 | |
| 51 | Bernardo Cisneros | .5094 | 2018 | |
| 52 | Mike Anderson | .5088 | 2022 | |
| 53 | Osamu Ito | .5076 | 2018 | |
| 54 | P.J. Baker | .5067 | 2016 | |
| 55 | Octávio García | .5054 | 2027 | |
| 56 | Fernando Cruz# | .5041 | 2032 | |
| 57 | Octávio García | .5038 | 2026 | |
| 58 | Harold Planter# | .5033 | 2032 | |
| 59 | Kawanari Takahashi# | .5029 | 2026 | |
| 60 | Tom Klein | .5017 | 2017 | |
| 61 | Bartolo Valentín | .5011 | 2024 | |
| 62 | John Harrison | .5000 | 2022 | |
| 63 | Arnold Layne# | .4990 | 2032 | |
| 64 | Sergio Esquivel | .4976 | 2017 | |
| 65 | Dave Moore# | .4973 | 2022 | |
| 66 | Carlos Ávila | .4966 | 2022 | |
| 67 | Sergio Esquivel | .4963 | 2018 | |
| 68 | Mason Eilers | .4959 | 2021 | |
| 69 | José Contreras | .4946 | 2025 | |
| 70 | Clarence Wicklund | .4943 | 2018 | |
| 71 | Tim Raines | .4940 | 2025 | |
| 72 | Octávio García | .4934 | 2020 | |
| 73 | Bruce Joyner | .4931 | 2017 | |
| 74 | Bill McIntyre# | .4925 | 2022 | |
| 75 | Masamichi Fujita# | .4908 | 2027 | |
| 76 | Bartolo Valentín | .4907 | 2019 | |
| 77 | Tom Hughes | .4877 | 2019 | |
| 78 | George Evans | .4863 | 2022 | |
| 78 | Bob Hayes | .4863 | 2022 | |
| 80 | Kawanari Takahashi# | .4848 | 2024 | |
| 81 | Bernardo Cisneros | .4846 | 2020 | |
| 82 | Jorge Moreno# | .4821 | 2023 | |
| 83 | Clarence Wicklund | .4820 | 2020 | |
| 84 | Edgardo Gómez | .4806 | 2027 | |
| 84 | Carlos Ávila | .4806 | 2020 | |
| 86 | Tom Hughes | .4803 | 2021 | |
| 87 | Wilson Flores | .4800 | 2027 | |
| 88 | Ramón Guzmán | .4769 | 2014 | |
| 89 | Neil Fullerton | .4758 | 2017 | |
| 90 | Leslie Whitney | .4753 | 2020 | |
| 91 | Dennis Mayne# | .4748 | 2032 | |
| 92 | Bruce Joyner | .4739 | 2019 | |
| 93 | Mal Rivers | .4737 | 2026 | |
| 94 | Ramon Ooyendijk | .4726 | 2028 | |
| 95 | Wei-qiang Ju# | .4701 | 2032 | |
| 96 | Fernando Cruz# | .4691 | 2030 | |
| 97 | Oliver North# | .4672 | 2022 | |
| 98 | Osamu Ito | .4666 | 2019 | |
| 99 | Tim Raines | .4661 | 2019 | |
| 99 | Kyle Reader | .4661 | 2019 |
