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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | SLG | YEAR | Open Career Leaderboard |
|---|---|---|---|---|
| 1 | Sadakuno Matsumoto# | .5854 | 2022 | |
| 2 | Richard Richards | .5059 | 2020 | |
| 3 | Mario Romero# | .4867 | 2024 | |
| 4 | Masami Tanaka# | .4836 | 2021 | |
| 5 | Hidehira Ohayashi# | .4680 | 2027 | |
| 6 | Armando Sosa# | .4663 | 2021 | |
| 7 | Stanley Bounds# | .4525 | 2021 | |
| 8 | José Flores# | .4465 | 2023 | |
| 9 | Nick Jacobson | .4427 | 2015 | |
| 10 | Matthew Robinson# | .4369 | 2026 | |
| 11 | Matthew Robinson# | .4357 | 2025 | |
| 12 | Valentín Velasco# | .4331 | 2023 | |
| 13 | Conceição Loff# | .4292 | 2016 | |
| 14 | Takafumi Nomura | .4268 | 2015 | |
| 15 | Donald Buchanan# | .4249 | 2023 | |
| 16 | Patrick Brunet# | .4134 | 2025 | |
| 17 | Edward Ilett# | .4133 | 2026 | |
| 18 | Masami Tanaka# | .4127 | 2020 | |
| 19 | Earl Joyner# | .4106 | 2023 | |
| 20 | Sean Clare# | .4087 | 2023 | |
| 21 | Manuel Rivera# | .4077 | 2018 | |
| 22 | Martín Torres | .4068 | 2018 | |
| 23 | Albin Disanti# | .4055 | 2017 | |
| 24 | Carlton Jackson# | .4048 | 2027 | |
| 25 | Salvador Mata# | .3980 | 2018 | |
| 26 | Conceição Loff# | .3967 | 2015 | |
| 27 | Jesús Silva | .3935 | 2012 | |
| 28 | Marvin Etheridge# | .3931 | 2027 | |
| 29 | Arturo León | .3919 | 2015 | |
| 30 | Otte Noordijk# | .3908 | 2022 | |
| 31 | Matthew Robinson# | .3893 | 2027 | |
| 32 | Ron Matthews# | .3889 | 2027 | |
| 33 | Yaichiro Yokoyama# | .3883 | 2025 | |
| 34 | Takeo Watanabe | .3846 | 2022 | |
| 35 | Armando Sosa# | .3835 | 2020 | |
| 36 | Masahiro Chikafuji# | .3825 | 2021 | |
| 37 | Bill Hoover | .3824 | 2012 | |
| 38 | Michael Hill# | .3799 | 2021 | |
| 39 | José Flores# | .3797 | 2022 | |
| 40 | James McKeamish# | .3773 | 2020 | |
| 41 | Bennie Hanna | .3752 | 2016 | |
| 42 | Rodrigo Alagna# | .3730 | 2022 | |
| 43 | Damian Louganis# | .3724 | 2022 | |
| 44 | Sadakuno Matsumoto# | .3704 | 2021 | |
| 45 | Shusaku Sugiyama# | .3699 | 2016 | |
| 46 | Bill Locke# | .3677 | 2026 | |
| 47 | Artie Hart# | .3648 | 2019 | |
| 48 | Joong Guang# | .3645 | 2019 | |
| 49 | Masami Tanaka# | .3641 | 2019 | |
| 50 | Dong Kan# | .3620 | 2023 | |
| 51 | Paul Frank# | .3618 | 2018 | |
| 52 | Jaikirti Kumawagra# | .3612 | 2023 | |
| 53 | Seitaro Yamada# | .3599 | 2021 | |
| 54 | Reece Wager# | .3598 | 2026 | |
| 55 | Soseki Aoki | .3571 | 2019 | |
| 56 | Sean Clare# | .3564 | 2022 | |
| 57 | Tim Cummings# | .3562 | 2017 | |
| 58 | Albin Disanti# | .3556 | 2018 | |
| 59 | Asmara Layar# | .3552 | 2022 | |
| 60 | Kol-in-sen Lu# | .3511 | 2022 | |
| 61 | Iosif Gaichuk# | .3505 | 2026 | |
| 62 | Jaikirti Kumawagra# | .3464 | 2022 | |
| 63 | Sean Childers# | .3433 | 2016 | |
| 64 | Earl Joyner# | .3419 | 2022 | |
| 65 | Shi-kai Tsu# | .3408 | 2026 | |
| 66 | Yoriyuki Tanaka# | .3400 | 2026 | |
| 67 | Martín Hernández# | .3394 | 2020 | |
| 68 | Artie Hart# | .3383 | 2020 | |
| 69 | Wiley Atherton# | .3378 | 2026 | |
| 70 | Kiemon Matsunaga# | .3373 | 2026 | |
| 71 | Freddie Parker | .3367 | 2016 | |
| 72 | Nick Robertson# | .3353 | 2014 | |
| 73 | Collin Reyes# | .3240 | 2024 | |
| 74 | Mark Logan# | .3224 | 2024 | |
| 75 | Charlie Chowen# | .3194 | 2018 | |
| 76 | Martín Torres | .3146 | 2017 | |
| 77 | Dave Thomas | .3145 | 2016 | |
| 78 | Yasuyuki Konno# | .3144 | 2026 | |
| 79 | Éric Roques# | .3131 | 2027 | |
| 80 | Rajil Phadnis | .3125 | 2024 | |
| 81 | Alfredo Villalobos# | .3054 | 2013 | |
| 82 | Soseki Aoki | .3052 | 2017 | |
| 83 | Brandon Dawson | .3021 | 2017 | |
| 84 | Martín Hernández# | .2972 | 2019 | |
| 85 | Krsniya Chinnappan | .2920 | 2020 | |
| 86 | Shosuke Uchida | .2874 | 2018 | |
| 87 | Orlando Ortíz | .2865 | 2014 | |
| 88 | Jorge Pérez# | .2843 | 2015 | |
| 89 | Alfredo Villalobos# | .2829 | 2012 | |
| 90 | Kenko Yoshimura# | .2785 | 2020 | |
| 91 | Kitaw Malecela# | .2752 | 2026 | |
| 92 | Claudio Jaramillo | .2629 | 2015 | |
| 93 | Tobias Funke | .2620 | 2014 | |
| 94 | Harley Ware# | .2575 | 2022 | |
| 95 | Edgardo Alvarado# | .2506 | 2026 |
