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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 | Frank Lewis# | .9600 | 2028 | |
| 6 | Geoffrey Jellineck# | .9565 | 2021 | |
| 7 | John Oakes# | .9524 | 2027 | |
| 8 | Frank Coleman# | .9310 | 2023 | |
| 9 | Lai-hsiang Xiu# | .9048 | 2025 | |
| 10 | David Lewis# | .8919 | 2025 | |
| 11 | Edmond Bouet | .8889 | 2019 | |
| 12 | Haden Gregory# | .8750 | 2022 | |
| 13 | Kiyonobu Yamasaki# | .8696 | 2023 | |
| 14 | Bill Nelson# | .8667 | 2021 | |
| 15 | Pedro Gómez# | .8636 | 2023 | |
| 16 | John Cook# | .8571 | 2022 | |
| 17 | Qian Thean# | .8511 | 2028 | |
| 18 | Jong-min Kim Jr.# | .8500 | 2028 | |
| 19 | Lúcio Nájera# | .8387 | 2028 | |
| 20 | Mal Rivers# | .8276 | 2026 | |
| 21 | Matt Winters# | .8214 | 2027 | |
| 22 | Donald Latulippe# | .8148 | 2026 | |
| 23 | Seitaro Maruyama | .8125 | 2025 | |
| 23 | Tom Becker* | .8125 | 2013 | |
| 25 | Mike Bergeron | .8095 | 2019 | |
| 26 | Adam Kerr# | .8077 | 2026 | |
| 26 | Jeffrey Coffman | .8077 | 2014 | |
| 28 | Carlos Campos# | .8056 | 2028 | |
| 29 | Chris Collins | .8000 | 2015 | |
| 29 | Joaquín Jaramillo# | .8000 | 2027 | |
| 31 | Frank Coleman# | .7955 | 2022 | |
| 31 | Chris Collins | .7955 | 2018 | |
| 33 | Floyd Green# | .7931 | 2026 | |
| 34 | Steve Frend# | .7917 | 2012 | |
| 35 | Jim Crawford | .7903 | 2015 | |
| 36 | Tim McCreary# | .7857 | 2028 | |
| 37 | Kata Nishikawa# | .7826 | 2021 | |
| 37 | Tracy Ashton# | .7826 | 2023 | |
| 39 | Allen Cummings# | .7805 | 2020 | |
| 40 | Xavier Chávez | .7727 | 2018 | |
| 41 | Jong-min Kim Jr.# | .7714 | 2025 | |
| 42 | Jorge Zamora# | .7708 | 2027 | |
| 43 | Marty Silver | .7674 | 2017 | |
| 44 | Millard Pearce# | .7647 | 2024 | |
| 44 | Tony Oglethorpe# | .7647 | 2018 | |
| 46 | León Oditón | .7619 | 2012 | |
| 47 | Steve Wagner# | .7551 | 2025 | |
| 48 | Tim McCreary# | .7500 | 2017 | |
| 48 | Kiyonobu Yamasaki# | .7500 | 2022 | |
| 50 | Baber Davi# | .7368 | 2026 | |
| 50 | Joseph Mitchell# | .7368 | 2021 | |
| 52 | Claude Morin# | .7333 | 2018 | |
| 53 | George Soucy# | .7241 | 2026 | |
| 54 | Zale Kountouroudas | .7143 | 2015 | |
| 54 | Dean Graham# | .7143 | 2021 | |
| 54 | Wilson Trujillo | .7143 | 2018 | |
| 54 | Baden Murphy# | .7143 | 2020 | |
| 58 | Akio Toyoda# | .7108 | 2018 | |
| 59 | Kata Nishikawa# | .7083 | 2025 | |
| 60 | Abalendu Manglorkar# | .7077 | 2022 | |
| 61 | Pablo Ríos# | .7073 | 2023 | |
| 62 | Jong-min Kim Jr.# | .7069 | 2023 | |
| 63 | Li-chi Au# | .7059 | 2021 | |
| 63 | Steve McGowan# | .7059 | 2028 | |
| 65 | Stan Cheslin# | .7037 | 2018 | |
| 65 | Ebrahim Magsi# | .7037 | 2025 | |
| 65 | Sergio Esquivel# | .7037 | 2017 | |
| 68 | Mike Bergeron | .7021 | 2020 | |
| 69 | Baber Davi# | .6977 | 2025 | |
| 70 | Cristo Morán# | .6970 | 2028 | |
| 70 | Armando Moreno# | .6970 | 2022 | |
| 72 | Katsumoto Matsui# | .6905 | 2023 | |
| 73 | Lúcio Nájera# | .6875 | 2022 | |
| 74 | Skip Clayton# | .6857 | 2021 | |
| 75 | Conceiçăo Loff# | .6818 | 2020 | |
| 76 | Lúcio Nájera# | .6800 | 2025 | |
| 76 | Sal Ostendorff# | .6800 | 2025 | |
| 78 | James Rice# | .6774 | 2026 | |
| 79 | Colin St. John | .6765 | 2014 | |
| 79 | Byron Bryant | .6765 | 2014 | |
| 81 | Dayne Reagan# | .6744 | 2028 | |
| 82 | Valentín Alvarado# | .6667 | 2024 | |
| 82 | Peter Boyd | .6667 | 2020 | |
| 82 | Lorenzo Castro# | .6667 | 2021 | |
| 82 | Raymond Moor | .6667 | 2015 | |
| 82 | Joe Frost | .6667 | 2019 | |
| 82 | Ricardo Corte# | .6667 | 2026 | |
| 82 | Mitch Lyon | .6667 | 2015 | |
| 82 | Yasushi Kato# | .6667 | 2028 | |
| 82 | Atamas Manas# | .6667 | 2026 | |
| 91 | Gary Ferris | .6591 | 2017 | |
| 92 | Tomás Gonzáles# | .6579 | 2023 | |
| 93 | Mike Bergeron | .6571 | 2013 | |
| 94 | Octávio García# | .6552 | 2020 | |
| 94 | Dominique Lepage | .6552 | 2018 | |
| 96 | Mike Bergeron | .6533 | 2016 | |
| 97 | Oscar Hunt# | .6522 | 2018 | |
| 97 | Tim Raines# | .6522 | 2015 | |
| 97 | Pedro Gómez# | .6522 | 2019 | |
| 97 | Orlando Ortíz | .6522 | 2020 |
