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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | OBP | YEAR | Open Season Leaderboard |
|---|---|---|---|---|
| 1 | Francisco Mendoza* | .421 | 1970-1986 | |
| 2 | Lúcio Ortíz | .416 | 1994-2008 | |
| 3 | Ed Moran* | .411 | 2004-2021 | |
| 4 | Larry Gillespie | .400 | 1995-2008 | |
| 5 | Alfredo Silva | .394 | 1998-2010 | |
| 6 | Rob Bailey# | .392 | 2012-2023 | |
| 7 | Donald Wilson | .391 | 1988-2002 | |
| 8 | William Walker# | .390 | 2012-2023 | |
| 9 | Porter Scott* | .389 | 1974-1997 | |
| 9 | Tynan Cooke# | .389 | 2012-2023 | |
| 11 | Miguel López | .383 | 2000-2013 | |
| 12 | Martin Simpson | .381 | 1998-2011 | |
| 13 | Corey Dillon | .378 | 1982-1998 | |
| 14 | Travis Hall | .375 | 1995-2009 | |
| 15 | Ricardo Contreras# | .372 | 2017-2023 | |
| 15 | Jonathan Rogers* | .372 | 1990-2004 | |
| 15 | Tommy Watts | .372 | 1970-1984 | |
| 18 | Charlie Olsen* | .366 | 1975-1993 | |
| 19 | Juan Romero | .365 | 1970-1977 | |
| 19 | Ramón Medina# | .365 | 2015-2023 | |
| 21 | Dan Parker | .363 | 1993-2003 | |
| 21 | Jesús Flores | .363 | 1995-2008 | |
| 23 | Sean Cannon | .361 | 2006-2018 | |
| 24 | Ramón Camacho | .360 | 1984-1997 | |
| 25 | Reggie Phillips | .356 | 1984-1998 | |
| 26 | Chris Kilvington | .355 | 1990-2006 | |
| 26 | Félix Herrera# | .355 | 2013-2023 | |
| 28 | Reynaldo Aguirre | .353 | 1990-2001 | |
| 28 | Jack Ross | .353 | 2001-2018 | |
| 28 | Lorenzo Rivera | .353 | 2005-2014 | |
| 31 | Jimmy Garrett* | .352 | 1990-2005 | |
| 31 | Jaime Colón | .352 | 1982-1996 | |
| 33 | Carlos Cerda | .350 | 1974-1988 | |
| 33 | Bruce Wolf | .350 | 2002-2010 | |
| 35 | Orlando Torres | .349 | 1995-2008 | |
| 36 | Keith Whaley | .348 | 1999-2007 | |
| 36 | Bob McIssac | .348 | 1998-2008 | |
| 38 | Emiel Valckenburgh | .347 | 1996-2010 | |
| 38 | Leonard Lynch | .347 | 1993-2007 | |
| 40 | Pat Cates | .346 | 1975-1987 | |
| 40 | Heshel Himmelfarb | .346 | 1994-2011 | |
| 42 | Dave Franklin | .345 | 1990-2006 | |
| 42 | Lee tai hoi Zeng | .345 | 1996-2009 | |
| 44 | Patrick Lee# | .344 | 2017-2023 | |
| 45 | Juan Pérez | .343 | 1973-1988 | |
| 46 | Fernando Rodríguez# | .341 | 2015-2023 | |
| 46 | Peter O'Halligan | .341 | 2002-2014 | |
| 46 | Scott Monroe | .341 | 1970-1978 | |
| 46 | Jared Krieger# | .341 | 2014-2023 | |
| 46 | Tom Evans | .341 | 1970-1978 | |
| 46 | Jorge Colón | .341 | 1988-1996 | |
| 52 | Richie Farrell | .340 | 1978-1991 | |
| 52 | Roland Ward | .340 | 1978-1991 | |
| 52 | Dong-min Kim | .340 | 1982-1995 | |
| 52 | Cristo Reyes | .340 | 1996-2012 | |
| 52 | Quinn Wheeler | .340 | 1984-1996 | |
| 57 | Evan Brown | .338 | 1975-1988 | |
| 58 | Clayton Keith | .336 | 1976-1988 | |
| 59 | Damon Rollins | .335 | 1976-1990 | |
| 59 | Raymond Jones | .335 | 2001-2017 | |
| 61 | Jason Weaver | .334 | 1994-2003 | |
| 61 | Joaquín Castro# | .334 | 2012-2023 | |
| 61 | Dale Booth | .334 | 1970-1980 | |
| 64 | Gabriel Berrios | .333 | 1970-1987 | |
| 64 | Júlio Rojero | .333 | 2002-2018 | |
| 64 | Ben Rutledge | .333 | 2004-2019 | |
| 64 | Ricardo González | .333 | 1970-1977 | |
| 68 | Mitchell Robinson | .332 | 1974-1988 | |
| 68 | Brandon Scott | .332 | 1970-1986 | |
| 70 | Ricardo Castillo# | .331 | 2011-2023 | |
| 70 | Jorge Hernández | .331 | 1981-1994 | |
| 72 | Jeffery Lockhart | .330 | 1970-1987 | |
| 72 | Joe Rouse | .330 | 1990-1998 | |
| 72 | Andy Wells# | .330 | 2012-2023 | |
| 75 | Curt Walker | .329 | 1976-1991 | |
| 76 | John Aufrere | .328 | 1978-1990 | |
| 77 | Sloan Bruce | .327 | 2004-2013 | |
| 77 | Gil Ferguson | .327 | 1970-1975 | |
| 79 | Earl Martínez | .326 | 2007-2017 | |
| 79 | Joseph Patterson | .326 | 1975-1989 | |
| 81 | Jordan Tamblyn | .324 | 1985-1993 | |
| 81 | Fernando Barrón | .324 | 1972-1981 | |
| 81 | Denny Albert | .324 | 2003-2014 | |
| 84 | Walt Stone | .323 | 1979-1986 | |
| 85 | Lawrence Adams | .322 | 1982-1993 | |
| 86 | Orlando Barrera | .320 | 1983-1994 | |
| 86 | Alberto Padilla | .320 | 1996-2007 | |
| 86 | Francisco Fontanez | .320 | 2007-2016 | |
| 86 | Fred Herman | .320 | 1986-1997 | |
| 90 | Raúl González | .319 | 1970-1977 | |
| 90 | Pierre Charbonneau | .319 | 2006-2015 | |
| 92 | Ryan Shelton | .318 | 2008-2015 | |
| 93 | Juan Sánchez | .313 | 1973-1983 | |
| 94 | Sean Swanson | .310 | 1975-1981 | |
| 95 | Jim Sorensen | .309 | 2009-2016 | |
| 96 | Luis Rodríguez | .307 | 2009-2016 | |
| 97 | Terry Craft | .305 | 1970-1976 | |
| 98 | Joe Taylor | .303 | 1970-1981 | |
| 99 | Kent Stanley | .302 | 1978-1991 | |
| 100 | Anthony Gill | .299 | 1981-1992 |
