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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | OBP | YEAR | Open Season Leaderboard |
|---|---|---|---|---|
| 1 | Ángel Vázquez# | .3999 | 2021-2028 | |
| 2 | Tim Shields | .3938 | 2012-2025 | |
| 3 | Shannon Craft# | .3817 | 2023-2028 | |
| 4 | Curt Hall# | .3815 | 2016-2028 | |
| 5 | John Wilder | .3676 | 2015-2022 | |
| 6 | Phillip Smith | .3624 | 2012-2026 | |
| 6 | Nick Robertson# | .3624 | 2017-2028 | |
| 8 | Bodil Larsen | .3607 | 2012-2021 | |
| 9 | Júlio Segura# | .3603 | 2019-2028 | |
| 10 | Ralph Blair# | .3575 | 2023-2028 | |
| 11 | Alfredo Villalobos# | .3569 | 2018-2027 | |
| 12 | Will Tucker# | .3563 | 2021-2028 | |
| 13 | León Oditón | .3527 | 2012-2022 | |
| 14 | Lúcio Nájera# | .3492 | 2020-2028 | |
| 15 | Yoo-ngan Shuang# | .3452 | 2022-2028 | |
| 16 | Gene O'Reilly | .3366 | 2012-2019 | |
| 17 | Héctor Chávez | .3345 | 2016-2028 | |
| 18 | Matt Clark# | .3250 | 2021-2028 | |
| 19 | Mike Hobbs# | .3194 | 2018-2028 | |
| 20 | Tim Cummings# | .3187 | 2021-2028 | |
| 21 | Matt Sanford | .3126 | 2012-2019 | |
| 22 | George White | .3111 | 2012-2020 | |
| 23 | Stephen Hicks | .3089 | 2017-2026 | |
| 24 | Billy Bishop# | .3017 | 2017-2027 | |
| 25 | Don Lee# | .3009 | 2018-2028 | |
| 26 | Takaaki Hirayama | .3002 | 2014-2021 | |
| 27 | António Rojas# | .2990 | 2016-2028 | |
| 28 | Vicente García# | .2978 | 2016-2022 | |
| 29 | Sean Childers# | .2973 | 2018-2026 | |
| 30 | Francisco Solano | .2967 | 2012-2020 | |
| 31 | Jorge Pérez# | .2958 | 2021-2027 | |
| 32 | Bobby Shine | .2933 | 2015-2021 | |
| 33 | Conceiçăo Loff# | .2849 | 2018-2027 | |
| 34 | Manuel Fernández# | .2787 | 2017-2027 |
