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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | OBP | YEAR | Open Season Leaderboard |
|---|---|---|---|---|
| 1 | Tony Palencia | .4322 | 1981-1988 | |
| 2 | Álex Hernández | .4304 | 1991-2002 | |
| 3 | Tejano Villesca | .4254 | 1978-1991 | |
| 4 | Zach August | .4225 | 2024-2035 | |
| 5 | Dave Wyatt | .4215 | 1986-1998 | |
| 6 | Victor Montano | .4166 | 1994-2006 | |
| 7 | Doug Hines | .4121 | 1988-1995 | |
| 8 | Sal Larson | .4119 | 2025-2030 | |
| 9 | Brad Pierce | .4103 | 1993-2005 | |
| 10 | T.J. Sanderson | .4095 | 1991-1997 | |
| 11 | Adan Bosworth | .4092 | 2025-2036 | |
| 12 | Todd Valenti | .4053 | 2009-2018 | |
| 13 | Okitsugu Tanaka | .4010 | 1992-1998 | |
| 14 | Doug Brown | .4009 | 1992-2001 | |
| 15 | Raúl Rojas | .3996 | 1991-2000 | |
| 16 | Victoriano Rincón | .3978 | 1989-1997 | |
| 17 | Napoleon Mendoza | .3974 | 2003-2007 | |
| 18 | Wes Foster | .3972 | 1995-2003 | |
| 19 | Raúl Ramírez | .3971 | 1990-1995 | |
| 20 | Ed King | .3951 | 2034-2043 | |
| 21 | Gene Jefferson | .3947 | 1992-2005 | |
| 22 | Tom Plain | .3945 | 2029-2042 | |
| 22 | Brad Howell | .3945 | 1991-2000 | |
| 24 | Stephen Alexander | .3944 | 2001-2013 | |
| 25 | Thomas Chaney | .3940 | 2022-2032 | |
| 26 | Doug Richardson | .3929 | 1994-2001 | |
| 27 | Norm Hustus | .3928 | 2032-2042 | |
| 28 | Josh Ward | .3926 | 2017-2028 | |
| 29 | Dave Ritchason | .3916 | 1996-2007 | |
| 30 | Jerrod Clark | .3911 | 2000-2014 | |
| 30 | Geoff Sutherland | .3911 | 1993-2003 | |
| 32 | Renaldo Domínguez | .3909 | 1990-2006 | |
| 33 | Dani Rodríguez | .3908 | 1987-1995 | |
| 34 | Clint Pruett | .3902 | 1991-1996 | |
| 34 | Bruce Bolduc | .3902 | 1985-1993 | |
| 36 | Johnny Bright | .3899 | 2026-2034 | |
| 37 | Cale Hill | .3894 | 1994-2010 | |
| 38 | Tom Dewar | .3893 | 2023-2029 | |
| 39 | Kent Crawley | .3892 | 1989-1994 | |
| 40 | Troy Seeley | .3884 | 2005-2016 | |
| 41 | Pete Hampton | .3881 | 1985-1999 | |
| 41 | Sammy Woods | .3881 | 1999-2009 | |
| 43 | Duane Miller | .3869 | 1994-2006 | |
| 44 | C.J. Lempke | .3863 | 2019-2024 | |
| 45 | Victor Overacker | .3859 | 2022-2032 | |
| 46 | Pete Gentry | .3856 | 1989-2001 | |
| 46 | Bob Aviles | .3856 | 1999-2015 | |
| 48 | Tomotaka Okuda | .3855 | 2024-2036 | |
| 48 | Roberto Romero | .3855 | 2019-2026 | |
| 50 | Jayden Thompson | .3853 | 2031-2037 | |
| 51 | Dave Willis | .3846 | 1998-2014 | |
| 52 | Will Neill | .3845 | 2036-2046 | |
| 53 | Pat Peets | .3838 | 2027-2034 | |
| 54 | Del McMillan | .3826 | 1992-2002 | |
| 55 | Paul Cake | .3818 | 1978-1986 | |
| 56 | Hector Rodriguez | .3816 | 2004-2011 | |
| 57 | A.J. Caldara | .3810 | 2034-2040 | |
| 58 | Alexis Picasso | .3807 | 1998-2014 | |
| 59 | Dave Miller | .3806 | 2000-2016 | |
| 60 | Curt Rutledge | .3804 | 1985-1989 | |
| 61 | Rylan Groesbeck | .3803 | 2027-2032 | |
| 62 | Sekien Meshizuka | .3801 | 1988-2003 | |
| 62 | Drew Ansell | .3801 | 2036-2046 | |
| 64 | Zach Ross | .3800 | 1992-2002 | |
| 65 | Pueblo Lanosa | .3796 | 1982-1988 | |
| 65 | Sojuro Kan | .3796 | 1996-2006 | |
| 67 | Ángel Alambar | .3793 | 1979-1986 | |
| 68 | Joe Carbarin | .3790 | 1979-1989 | |
| 69 | Juichi Hishida | .3788 | 2030-2041 | |
| 70 | Ian Jones | .3785 | 2021-2033 | |
| 71 | Artie Polk | .3781 | 1993-2000 | |
| 72 | Wally Tyson | .3780 | 2009-2013 | |
| 73 | Jim Brannan | .3778 | 1983-1998 | |
| 74 | William Barber | .3773 | 2005-2016 | |
| 74 | Artie St. John | .3773 | 1992-2000 | |
| 76 | Dan Shadbolt | .3772 | 2042-2047 | |
| 77 | Joe Monge | .3770 | 1978-1989 | |
| 78 | Johnny Knight | .3767 | 1997-2006 | |
| 78 | Paul Cloutier | .3767 | 1979-1986 | |
| 80 | Don Johnston | .3766 | 1986-1996 | |
| 81 | Alec Lyons | .3765 | 2023-2035 | |
| 82 | Juan Carlos Ramírez | .3762 | 1984-1989 | |
| 82 | Pei Si-ma | .3762 | 2032-2042 | |
| 84 | Shane Berry | .3757 | 2006-2018 | |
| 84 | Artie Stewart | .3757 | 1996-2010 | |
| 86 | Benigno Ramos | .3756 | 1978-1987 | |
| 87 | Arlen Joyner | .3755 | 1989-2006 | |
| 88 | Henry Watters | .3752 | 2036-2043 | |
| 89 | Darryl Turner | .3749 | 1986-1997 | |
| 90 | Ty Billings | .3744 | 1993-2007 | |
| 91 | Pete Phelps | .3741 | 1992-2003 | |
| 92 | Toby McDonald | .3739 | 1994-2004 | |
| 93 | Ron Lombard | .3737 | 1996-2006 | |
| 94 | Shawn Jones | .3735 | 1986-1990 | |
| 95 | Kyle Miller | .3733 | 2038-2044 | |
| 95 | Artie Latham | .3733 | 1983-1988 | |
| 97 | Joe Laboca | .3732 | 1982-1995 | |
| 98 | Miguel Angel Herrera | .3729 | 1987-1995 | |
| 99 | Jerry Morton | .3727 | 1987-1992 | |
| 100 | Jamie Weaver | .3725 | 2022-2028 |
