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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | SLG | YEAR | Open Career Leaderboard |
|---|---|---|---|---|
| 1 | Martín Martínez# | .4569 | 2022 | |
| 2 | Harris Harden# | .4172 | 2023 | |
| 3 | Joe Ferneyhough# | .4164 | 2020 | |
| 4 | Joe Ferneyhough# | .3973 | 2022 | |
| 5 | Sal Haynes# | .3881 | 2022 | |
| 6 | Glenn Woods# | .3828 | 2022 | |
| 7 | Raymond Bright# | .3824 | 2020 | |
| 8 | Dan Godwin# | .3818 | 2022 | |
| 9 | Dan Godwin# | .3771 | 2023 | |
| 10 | Hiwahikeiki Noelani# | .3733 | 2023 | |
| 11 | Travis Lee# | .3676 | 2020 | |
| 12 | Joe Ferneyhough# | .3563 | 2021 | |
| 13 | Mito Rin# | .3411 | 2022 | |
| 14 | Ichiyo Fujii# | .3260 | 2021 | |
| 15 | Miguel Márquez# | .3030 | 2020 | |
| 16 | Sal Haynes# | .2985 | 2023 | |
| 17 | Jason Dunn# | .2753 | 2020 | |
| 18 | Mito Rin# | .2402 | 2021 |
