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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | OPS | YEAR | Open Season Leaderboard |
|---|---|---|---|---|
| 1 | Keitaro Ojima | .933 | 2017-2023 | |
| 2 | Ming-an Woo# | .915 | 2023-2034 | |
| 3 | William Harmon | .886 | 2012-2022 | |
| 4 | Dave Watson | .877 | 2022-2033 | |
| 5 | Jake Hunt | .876 | 2015-2026 | |
| 6 | Susumu Yamamoto# | .864 | 2026-2032 | |
| 7 | Way-ming Wang# | .843 | 2024-2033 | |
| 8 | César Silva | .835 | 2015-2030 | |
| 9 | Miguel Parra | .833 | 2014-2025 | |
| 10 | Ryan Kirby | .823 | 2015-2023 | |
| 11 | Theodore Brennan | .808 | 2025-2033 | |
| 12 | Matt Wilkerson | .749 | 2021-2028 |
