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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | OBP | YEAR | Open Career Leaderboard |
|---|---|---|---|---|
| 1 | Royce Bolinger | .4286 | 2018 | |
| 2 | Jason Vosler# | .4276 | 2020 | |
| 3 | Grant Kay | .4210 | 2020 | |
| 4 | Luken Baker# | .4163 | 2016 | |
| 5 | Casey Grayson | .4115 | 2018 | |
| 6 | Smith Smith | .4082 | 2018 | |
| 7 | Joey Gallo# | .4075 | 2015 | |
| 8 | Josh Lester# | .4028 | 2019 | |
| 9 | Emmanuel Rivera# | .4014 | 2022 | |
| 10 | Ronald Guzman# | .3976 | 2017 | |
| 11 | Luken Baker# | .3969 | 2017 | |
| 12 | Hogan Windish# | .3947 | 2025 | |
| 13 | Curtis Mead# | .3894 | 2022 | |
| 14 | T.J. Schofield-Sam# | .3878 | 2026 | |
| 15 | John Aiello# | .3871 | 2025 | |
| 16 | Peter O'Brien | .3858 | 2018 | |
| 17 | Aderlin Rodriguez | .3857 | 2018 | |
| 18 | Carlos Castro | .3855 | 2018 | |
| 19 | Josh Lester# | .3850 | 2020 | |
| 20 | John Aiello# | .3846 | 2023 | |
| 21 | Kevin Cornelius | .3824 | 2018 | |
| 22 | Coby Morales# | .3813 | 2025 | |
| 23 | Ernesto Mejia | .3810 | 2017 | |
| 24 | Gavin LaValley | .3809 | 2019 | |
| 25 | Joey Meneses# | .3805 | 2019 | |
| 26 | Glenn Santiago# | .3792 | 2026 | |
| 27 | Jose Barrero# | .3778 | 2025 | |
| 28 | Chris Meyers# | .3755 | 2025 | |
| 29 | Chris Meyers# | .3742 | 2024 | |
| 30 | Chris Paul | .3739 | 2019 | |
| 31 | Jared Young# | .3701 | 2023 | |
| 32 | Michael Toglia# | .3699 | 2024 | |
| 33 | Juan Diaz | .3620 | 2015 | |
| 34 | Nick Evans | .3596 | 2015 | |
| 35 | Gavin LaValley | .3542 | 2020 | |
| 36 | Jeremy Schaffer | .3530 | 2017 | |
| 37 | Jordan Diaz# | .3506 | 2023 | |
| 38 | Aaron Sabato# | .3458 | 2024 | |
| 39 | Juan Diaz | .3415 | 2014 | |
| 40 | Aderlin Rodriguez | .3366 | 2016 | |
| 41 | Jeremy Schaffer | .3194 | 2016 |
