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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | OBP | YEAR | Open Season Leaderboard |
|---|---|---|---|---|
| 1 | Alex Rivera* | .4175 | 2019-2042 | |
| 2 | Hisato Umeda | .4035 | 1980-1987 | |
| 3 | Esteban Cuellar | .4016 | 1980-1989 | |
| 4 | Luis Vargas* | .3981 | 1989-2006 | |
| 5 | A.J. Cordle | .3944 | 1980-1991 | |
| 6 | Jordan Ramos | .3910 | 2012-2028 | |
| 7 | Chad Bizub | .3858 | 1999-2009 | |
| 8 | Leon Leal | .3838 | 2025-2035 | |
| 9 | Mike Wilson | .3836 | 2015-2020 | |
| 10 | Alpha Ampy | .3827 | 1984-1998 | |
| 11 | Dana Massaro | .3817 | 1999-2010 | |
| 12 | Xavier Esparza | .3815 | 2035-2048 | |
| 13 | Pat Covelli | .3808 | 2000-2016 | |
| 14 | Ricky Sabedra | .3807 | 2014-2025 | |
| 15 | Jacob Shaver | .3788 | 2012-2027 | |
| 16 | Esteban Carrillo | .3768 | 1980-1989 | |
| 17 | Oscar Marrache | .3764 | 2003-2012 | |
| 18 | Sam Halterman | .3751 | 1997-2010 | |
| 19 | Ben Waters# | .3750 | 2046-2050 | |
| 20 | Mike Coggin | .3746 | 1996-2008 | |
| 21 | Antonio Rodriguez* | .3743 | 2026-2047 | |
| 22 | Matt Barton* | .3742 | 2015-2032 | |
| 23 | Justin Bailey | .3718 | 2029-2040 | |
| 23 | Caleb Austin* | .3718 | 2024-2041 | |
| 25 | Lum Pinkney | .3711 | 2032-2041 | |
| 26 | Jorge Esqueda | .3703 | 2004-2013 | |
| 27 | Francisco Sagastume | .3702 | 2013-2018 | |
| 28 | Joe Cronk | .3699 | 2010-2024 | |
| 29 | Billy Cooper | .3697 | 1980-1990 | |
| 30 | Ernesto Jiminez | .3694 | 2002-2018 | |
| 31 | Alex Perdomo* | .3691 | 2017-2035 | |
| 32 | Luis Castillo | .3688 | 1990-2002 | |
| 33 | Shawn Morrell* | .3687 | 2035-2047 | |
| 34 | Jeremy Reese | .3674 | 2007-2018 | |
| 34 | Derek Martin | .3674 | 2032-2045 | |
| 36 | Ryan McIntyre | .3673 | 2008-2019 | |
| 37 | Wally Hannas | .3672 | 1991-2002 | |
| 38 | Corey Melendrez | .3666 | 2017-2034 | |
| 39 | Nazir Gandapur | .3661 | 1980-1992 | |
| 40 | Valentin Suárez# | .3660 | 2042-2050 | |
| 41 | Noah DuBois# | .3650 | 2046-2050 | |
| 42 | Josias Jaynes# | .3648 | 2046-2050 | |
| 43 | Jose Morales* | .3646 | 1983-2003 | |
| 44 | Josh Twardowski | .3641 | 1980-1993 | |
| 45 | Caleb Willoughby | .3637 | 2005-2010 | |
| 46 | Antonio Otero | .3631 | 2010-2025 | |
| 47 | Justin Foster | .3628 | 2017-2034 | |
| 47 | Josh Rastatter | .3628 | 2024-2041 | |
| 47 | Orlando Encarnacion | .3628 | 2020-2033 | |
| 50 | Austin Hagerty | .3627 | 2016-2032 | |
| 51 | Joe Dennis | .3620 | 1980-1987 | |
| 52 | Jason Foley | .3615 | 2009-2022 | |
| 53 | Jorge Pacheco | .3611 | 1988-2002 | |
| 54 | Alfredo Padilla | .3610 | 1985-1993 | |
| 55 | Greg Stephens | .3606 | 1981-1995 | |
| 56 | Matt Martin | .3603 | 2025-2043 | |
| 57 | Keith Heimer | .3600 | 2012-2024 | |
| 58 | Jim Sedgwick | .3598 | 1999-2013 | |
| 59 | Manny Boler | .3586 | 2013-2021 | |
| 60 | Eric Donley | .3585 | 1997-2013 | |
| 61 | Mike Welch | .3584 | 1992-2004 | |
| 62 | Mitch Marsh | .3583 | 2015-2025 | |
| 63 | Mitsuhisa Okita | .3566 | 2014-2026 | |
| 64 | Matt Rowland | .3563 | 2007-2018 | |
| 65 | Gregório Azurara | .3561 | 2012-2022 | |
| 65 | Danny Heston | .3561 | 1980-1987 | |
| 67 | Tom Cunningham* | .3556 | 2028-2043 | |
| 68 | Jorge Espinoza | .3551 | 1995-2008 | |
| 69 | Mike Cook | .3546 | 2000-2012 | |
| 69 | Joy-shan Ouyang | .3546 | 1994-2002 | |
| 71 | Jonathan Clay | .3543 | 2019-2031 | |
| 72 | Luis Mazariegos | .3540 | 2003-2010 | |
| 73 | Willie Fernandez | .3531 | 2018-2025 | |
| 74 | Kevin Messner | .3528 | 2006-2016 | |
| 75 | Luis Argueta | .3524 | 1982-1997 | |
| 76 | Jorge Aguilar | .3515 | 2000-2007 | |
| 77 | Nate Gallup | .3507 | 2000-2010 | |
| 78 | Bob Welch | .3499 | 1983-1996 | |
| 79 | Jon Gelman | .3497 | 1994-2004 | |
| 80 | Nathaniel Neo | .3491 | 2032-2043 | |
| 81 | Rogelio Castillo | .3483 | 1984-2000 | |
| 82 | Sam Nolen | .3466 | 1980-1988 | |
| 83 | Steve Koplitz | .3464 | 1980-1991 | |
| 83 | Juan Godina | .3464 | 1994-2006 | |
| 83 | Blake Hafen | .3464 | 2035-2046 | |
| 86 | Kevin Casseus | .3459 | 1990-2003 | |
| 87 | Andy Green | .3452 | 1980-1990 | |
| 88 | Brad Adams | .3448 | 2021-2037 | |
| 89 | Jonathan Heslet | .3433 | 1987-1994 | |
| 89 | Jake Friend | .3433 | 2025-2035 | |
| 91 | Enea Rojo | .3432 | 2027-2043 | |
| 92 | Luis Hurtado | .3431 | 1998-2007 | |
| 93 | Dave Cunningham | .3430 | 1988-1998 | |
| 94 | Jordan Busby | .3429 | 2013-2021 | |
| 95 | Billy Buckley | .3423 | 2006-2016 | |
| 96 | Christopher Cazares# | .3422 | 2037-2050 | |
| 96 | Marco Espinoza | .3422 | 2030-2043 | |
| 98 | Oscar Barboza | .3421 | 1980-1988 | |
| 99 | Mike Wright | .3420 | 2006-2017 | |
| 100 | Chris Weston | .3418 | 1980-1990 |
