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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | SLG | YEAR | Open Postseason Career Leaderboard |
|---|---|---|---|---|
| 1 | Bob McCullough# | 1.1250 | 2023 | |
| 2 | Tomás Gonzáles# | 1.0476 | 2019 | |
| 3 | Curt Hall# | 1.0385 | 2023 | |
| 4 | George Soucy# | .9655 | 2025 | |
| 5 | Geoffrey Jellineck# | .9565 | 2021 | |
| 6 | John Oakes# | .9524 | 2027 | |
| 7 | Frank Coleman# | .9310 | 2023 | |
| 8 | Lai-hsiang Xiu# | .9048 | 2025 | |
| 9 | David Lewis# | .8919 | 2025 | |
| 10 | Edmond Bouet | .8889 | 2019 | |
| 11 | Haden Gregory# | .8750 | 2022 | |
| 12 | Kiyonobu Yamasaki# | .8696 | 2023 | |
| 13 | Bill Nelson# | .8667 | 2021 | |
| 14 | Pedro Gómez# | .8636 | 2023 | |
| 15 | John Cook# | .8571 | 2022 | |
| 16 | Mal Rivers# | .8276 | 2026 | |
| 17 | Matt Winters# | .8214 | 2027 | |
| 18 | Donald Latulippe# | .8148 | 2026 | |
| 19 | Seitaro Maruyama# | .8125 | 2025 | |
| 19 | Tom Becker | .8125 | 2013 | |
| 21 | Mike Bergeron# | .8095 | 2019 | |
| 22 | Jeffrey Coffman | .8077 | 2014 | |
| 22 | Adam Kerr# | .8077 | 2026 | |
| 24 | Joaquín Jaramillo# | .8000 | 2027 | |
| 24 | Chris Collins | .8000 | 2015 | |
| 26 | Frank Coleman# | .7955 | 2022 | |
| 26 | Chris Collins | .7955 | 2018 | |
| 28 | Floyd Green# | .7931 | 2026 | |
| 29 | Steve Frend# | .7917 | 2012 | |
| 30 | Jim Crawford | .7903 | 2015 | |
| 31 | Tracy Ashton# | .7826 | 2023 | |
| 31 | Kata Nishikawa# | .7826 | 2021 | |
| 33 | Allen Cummings# | .7805 | 2020 | |
| 34 | Xavier Chávez | .7727 | 2018 | |
| 35 | Jong-min Kim Jr.# | .7714 | 2025 | |
| 36 | Jorge Zamora# | .7708 | 2027 | |
| 37 | Marty Silver# | .7674 | 2017 | |
| 38 | Millard Pearce# | .7647 | 2024 | |
| 38 | Tony Oglethorpe# | .7647 | 2018 | |
| 40 | León Oditón | .7619 | 2012 | |
| 41 | Steve Wagner# | .7551 | 2025 | |
| 42 | Kiyonobu Yamasaki# | .7500 | 2022 | |
| 42 | Tim McCreary# | .7500 | 2017 | |
| 44 | Joseph Mitchell# | .7368 | 2021 | |
| 44 | Baber Davi# | .7368 | 2026 | |
| 46 | Claude Morin# | .7333 | 2018 | |
| 47 | George Soucy# | .7241 | 2026 | |
| 48 | Zale Kountouroudas | .7143 | 2015 | |
| 48 | Dean Graham# | .7143 | 2021 | |
| 48 | Baden Murphy# | .7143 | 2020 | |
| 48 | Wilson Trujillo | .7143 | 2018 | |
| 52 | Akio Toyoda# | .7108 | 2018 | |
| 53 | Kata Nishikawa# | .7083 | 2025 | |
| 54 | Abalendu Manglorkar# | .7077 | 2022 | |
| 55 | Pablo Ríos# | .7073 | 2023 | |
| 56 | Jong-min Kim Jr.# | .7069 | 2023 | |
| 57 | Li-chi Au# | .7059 | 2021 | |
| 58 | Stan Cheslin# | .7037 | 2018 | |
| 58 | Ebrahim Magsi# | .7037 | 2025 | |
| 58 | Sergio Esquivel# | .7037 | 2017 | |
| 61 | Mike Bergeron# | .7021 | 2020 | |
| 62 | Baber Davi# | .6977 | 2025 | |
| 63 | Armando Moreno# | .6970 | 2022 | |
| 64 | Katsumoto Matsui# | .6905 | 2023 | |
| 65 | Lúcio Nájera# | .6875 | 2022 | |
| 66 | Skip Clayton# | .6857 | 2021 | |
| 67 | Conceição Loff# | .6818 | 2020 | |
| 68 | Sal Ostendorff# | .6800 | 2025 | |
| 68 | Lúcio Nájera# | .6800 | 2025 | |
| 70 | James Rice# | .6774 | 2026 | |
| 71 | Colin St. John | .6765 | 2014 | |
| 71 | Byron Bryant | .6765 | 2014 | |
| 73 | Atamas Manas# | .6667 | 2026 | |
| 73 | Peter Boyd | .6667 | 2020 | |
| 73 | Valentín Alvarado# | .6667 | 2024 | |
| 73 | Raymond Moor | .6667 | 2015 | |
| 73 | Ricardo Corte# | .6667 | 2026 | |
| 73 | Joe Frost# | .6667 | 2019 | |
| 73 | Mitch Lyon | .6667 | 2015 | |
| 73 | Lorenzo Castro# | .6667 | 2021 | |
| 81 | Gary Ferris | .6591 | 2017 | |
| 82 | Tomás Gonzáles# | .6579 | 2023 | |
| 83 | Mike Bergeron# | .6571 | 2013 | |
| 84 | Octávio García# | .6552 | 2020 | |
| 84 | Dominique Lepage | .6552 | 2018 | |
| 86 | Mike Bergeron# | .6533 | 2016 | |
| 87 | Tim Raines# | .6522 | 2015 | |
| 87 | Pedro Gómez# | .6522 | 2019 | |
| 87 | Oscar Hunt# | .6522 | 2018 | |
| 87 | Orlando Ortíz | .6522 | 2020 | |
| 91 | Kelsey Sherrill# | .6508 | 2019 | |
| 92 | Dave Moore# | .6500 | 2021 | |
| 93 | Ralph Butler# | .6486 | 2027 | |
| 94 | Skip Clayton# | .6471 | 2019 | |
| 95 | Curt Hall# | .6458 | 2019 | |
| 96 | Tim Shields | .6447 | 2021 | |
| 97 | Ken Forryan | .6410 | 2018 | |
| 97 | Fernando Bautista# | .6410 | 2018 | |
| 99 | Todd McCarthy# | .6400 | 2021 | |
| 100 | Mike Bergeron# | .6393 | 2017 |
