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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | OBP | YEAR | Open Career Leaderboard |
|---|---|---|---|---|
| 1 | Cam Collier# | .4641 | 2025 | |
| 2 | Bruce Caldwell | .4456 | 2014 | |
| 3 | Pedro Ramirez# | .4340 | 2025 | |
| 4 | Steven Proscia | .4233 | 2016 | |
| 5 | Emmanuel Rivera# | .4223 | 2018 | |
| 6 | Kiko Romero# | .4213 | 2025 | |
| 7 | Kelvin Beltre# | .4179 | 2020 | |
| 8 | Jeral Perez# | .4167 | 2025 | |
| 9 | Trey Michalczewski | .4123 | 2017 | |
| 10 | Caleb Lopes | .4121 | 2019 | |
| 11 | Carlos Colmenarez# | .4063 | 2025 | |
| 12 | Luis Verdugo# | .4053 | 2024 | |
| 13 | Leonel Valera# | .4042 | 2025 | |
| 14 | Lucas Dunn# | .3991 | 2026 | |
| 15 | Jonathan Meyer | .3977 | 2014 | |
| 16 | Matthew Duran | .3973 | 2016 | |
| 17 | Ivan Castillo# | .3925 | 2019 | |
| 18 | Elvis Sanchez | .3913 | 2015 | |
| 19 | Kelvin Beltre# | .3906 | 2018 | |
| 20 | Malcolm Holland | .3899 | 2014 | |
| 21 | A.J. Vukovich# | .3874 | 2024 | |
| 22 | Kevin Padlo# | .3867 | 2018 | |
| 23 | Leonel Valera# | .3843 | 2026 | |
| 24 | Billy Amick# | .3837 | 2025 | |
| 25 | Josh Hood# | .3812 | 2025 | |
| 26 | Ronald Torreyes | .3799 | 2013 | |
| 27 | Michael Russell | .3776 | 2016 | |
| 28 | Ke'byran Hayes# | .3752 | 2017 | |
| 29 | Colt Keith# | .3739 | 2023 | |
| 30 | Micah Coffey | .3733 | 2021 | |
| 31 | Manuel Guzman | .3731 | 2016 | |
| 32 | Michael Chavis# | .3726 | 2016 | |
| 32 | Mateo Gil# | .3726 | 2024 | |
| 34 | Javier Betancourt | .3725 | 2017 | |
| 35 | Joey Rose | .3717 | 2018 | |
| 36 | Luis Curbelo# | .3715 | 2022 | |
| 37 | Luke Heyer | .3708 | 2020 | |
| 38 | Mateo Gil# | .3664 | 2023 | |
| 39 | Freudis Nova# | .3650 | 2022 | |
| 40 | Yeyson Yrizarri | .3647 | 2018 | |
| 41 | Joey Rose | .3638 | 2020 | |
| 42 | Lane Thomas# | .3636 | 2017 | |
| 43 | Kendall Simmons# | .3626 | 2023 | |
| 44 | Joey Rose | .3624 | 2019 | |
| 45 | Grant Kay | .3616 | 2017 | |
| 46 | Sherman Johnson | .3606 | 2014 | |
| 47 | Kelvin Beltre# | .3584 | 2019 | |
| 48 | Kyle Kasser# | .3563 | 2022 | |
| 49 | Tripp Martin | .3560 | 2017 | |
| 50 | Jose Vizcaino Jr. | .3526 | 2017 | |
| 51 | Tucker Toman# | .3509 | 2024 | |
| 52 | Roderick Arias# | .3489 | 2025 | |
| 53 | Hector Veloz | .3424 | 2015 | |
| 54 | Chad Christensen | .3412 | 2015 | |
| 55 | Cortland Lawson# | .3404 | 2024 | |
| 56 | Kelvin Beltre# | .3264 | 2021 | |
| 57 | Nelson Ward | .3260 | 2016 | |
| 58 | Shane Matheny# | .3115 | 2020 | |
| 59 | Brandon Lewis# | .3096 | 2021 | |
| 60 | Cobie Vance# | .3050 | 2021 | |
| 61 | Freudis Nova# | .2959 | 2021 | |
| 62 | Casey Turgeon | .2657 | 2017 |
