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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | OBP | YEAR | Open Career Leaderboard |
|---|---|---|---|---|
| 1 | Rio Ruiz | .4903 | 2017 | |
| 2 | Fernando Tatis Jr.# | .4529 | 2018 | |
| 3 | Kevin Cornelius | .4340 | 2019 | |
| 4 | Jordan Groshans# | .4257 | 2022 | |
| 5 | Cal Towey | .4242 | 2018 | |
| 6 | Sal Stewart# | .4218 | 2025 | |
| 7 | Chesny Young | .4214 | 2023 | |
| 8 | Maikel Garcia# | .4113 | 2024 | |
| 9 | Michael Almanzar | .4112 | 2016 | |
| 10 | Garin Cecchini | .3993 | 2015 | |
| 11 | Josh Lowe# | .3955 | 2018 | |
| 12 | Jared Young# | .3935 | 2019 | |
| 13 | Ryan Schimpf | .3882 | 2016 | |
| 14 | Jordan Groshans# | .3879 | 2025 | |
| 15 | Drew Vettleson | .3840 | 2018 | |
| 16 | Cade Doughty# | .3809 | 2024 | |
| 17 | Michael Almanzar | .3787 | 2017 | |
| 18 | Rubel Cespedes# | .3763 | 2025 | |
| 19 | Marcos Almonte | .3730 | 2016 | |
| 20 | Mandy Alvarez# | .3729 | 2019 | |
| 21 | Jose Peroza# | .3722 | 2025 | |
| 21 | Hector Gomez | .3722 | 2015 | |
| 23 | Juan Francisco | .3699 | 2013 | |
| 24 | Stephen Perez | .3676 | 2017 | |
| 25 | Adrian Sanchez | .3663 | 2016 | |
| 26 | Brennan Milone# | .3641 | 2025 | |
| 26 | Skyler Messinger# | .3641 | 2023 | |
| 28 | Deibinson Romero | .3635 | 2014 | |
| 29 | Eddinson Paulino# | .3535 | 2025 | |
| 30 | Miguel Rojas# | .3529 | 2013 | |
| 31 | Henry Rodriguez | .3526 | 2014 | |
| 32 | Darwin Perez | .3522 | 2014 | |
| 33 | Evan Mendoza# | .3482 | 2021 | |
| 34 | Dawel Lugo | .3470 | 2017 | |
| 35 | Malcom Nunez# | .3426 | 2022 | |
| 36 | D.J. Peterson | .3417 | 2016 | |
| 37 | Hudson Potts# | .3371 | 2025 | |
| 38 | Angelys Nina | .3340 | 2017 | |
| 39 | Andy Perez# | .2797 | 2023 |
