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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | OBP | YEAR | Open Career Leaderboard |
|---|---|---|---|---|
| 1 | Danny Jansen# | .4570 | 2018 | |
| 2 | Jimmy Crooks# | .4521 | 2024 | |
| 3 | Jason Hagerty | .4485 | 2015 | |
| 4 | John Garcia# | .4393 | 2025 | |
| 5 | Adam Hackenberg# | .4371 | 2025 | |
| 6 | Brandon Valenzuela# | .4327 | 2025 | |
| 7 | A.J. Jimenez | .4275 | 2013 | |
| 8 | Nick Fortes# | .4242 | 2020 | |
| 9 | Cody Roberts# | .4226 | 2023 | |
| 10 | Aramis Garcia# | .4176 | 2017 | |
| 11 | Oscar Hernandez | .4163 | 2019 | |
| 12 | Drew Cavanaugh# | .4158 | 2025 | |
| 12 | Adam Weisenburger | .4158 | 2015 | |
| 14 | Renae Martinez | .4140 | 2019 | |
| 15 | Rafael Marchan# | .4136 | 2020 | |
| 16 | Austin Hedges# | .4132 | 2014 | |
| 17 | Oscar Hernandez | .4116 | 2020 | |
| 18 | Aramis Garcia# | .4112 | 2024 | |
| 19 | Ryan Ortiz | .4079 | 2016 | |
| 20 | Rafael Neda | .4029 | 2015 | |
| 21 | Ramon Cabrera | .4013 | 2018 | |
| 22 | Adam Weisenburger | .4004 | 2014 | |
| 23 | Kyle Higashioka# | .4000 | 2016 | |
| 24 | Dominic Miroglio# | .3984 | 2024 | |
| 25 | Alfredo Gonzalez | .3979 | 2017 | |
| 26 | M.P. Cokinos | .3975 | 2014 | |
| 27 | Patrick Cantwell | .3943 | 2014 | |
| 28 | Payton Henry# | .3939 | 2020 | |
| 29 | Vincent Perozo# | .3912 | 2025 | |
| 30 | Andrick Nava# | .3886 | 2024 | |
| 31 | Ryan Ortiz | .3879 | 2015 | |
| 32 | Francisco Alvarez# | .3871 | 2021 | |
| 33 | Jin-De Jhang | .3851 | 2015 | |
| 34 | Reese McGuire# | .3837 | 2015 | |
| 35 | Luke Berryhill# | .3802 | 2022 | |
| 36 | Ryan Ortiz | .3792 | 2014 | |
| 37 | Willie MacIver# | .3758 | 2022 | |
| 38 | Matt M. Koch | .3748 | 2015 | |
| 39 | Roberto Pena | .3669 | 2022 | |
| 40 | Pat Winkel# | .3553 | 2023 | |
| 41 | Aaron Antonini# | .3550 | 2023 | |
| 42 | Ryan Hissey | .3534 | 2018 | |
| 43 | Rossmel Perez | .3527 | 2013 | |
| 44 | Melvin Novoa# | .3497 | 2024 | |
| 45 | Spencer Navin | .3495 | 2017 | |
| 46 | John Riley | .3420 | 2018 | |
| 47 | Ridge Smith | .3348 | 2018 | |
| 48 | Sam Praytor# | .3326 | 2023 | |
| 49 | Philip Pohl | .3262 | 2013 | |
| 50 | Danny Jansen# | .3215 | 2016 | |
| 51 | Eugene Escalante | .3213 | 2016 | |
| 52 | Sean McHugh | .3062 | 2016 | |
| 53 | Casey Schroeder | .3027 | 2016 | |
| 54 | Richard Stock | .2977 | 2015 |
