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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | OBP | YEAR | Open Career Leaderboard |
|---|---|---|---|---|
| 1 | Aurelio López | .4610 | 1989 | |
| 2 | Víctor Proano | .4572 | 1988 | |
| 3 | Willie Cartier | .4534 | 1991 | |
| 4 | Chris Rogers | .4500 | 1980 | |
| 5 | Héctor Sánchez | .4471 | 1970 | |
| 6 | Eric Griffin | .4467 | 1982 | |
| 7 | Luis Castro | .4455 | 1988 | |
| 8 | Marcos Roghi | .4435 | 2002 | |
| 9 | Raúl Contreras | .4408 | 1982 | |
| 10 | Arthur Carlisle | .4401 | 1983 | |
| 11 | Aaron Courtney | .4390 | 1988 | |
| 12 | Salvador Gómez | .4366 | 1978 | |
| 13 | Leslie Bonden | .4359 | 1986 | |
| 14 | Len Kirkpatrick | .4354 | 1978 | |
| 15 | Jesús García | .4348 | 1986 | |
| 16 | Dan Quinn | .4345 | 1980 | |
| 17 | Jesús Flores | .4344 | 1988 | |
| 18 | Alexander King | .4339 | 1973 | |
| 19 | Carroll Holden | .4337 | 1991 | |
| 20 | Charles Ward | .4333 | 1977 | |
| 21 | Stan Long | .4322 | 1989 | |
| 22 | Frank Webb | .4311 | 1987 | |
| 23 | Greg Rogers# | .4305 | 2017 | |
| 24 | Thomas Price | .4300 | 1987 | |
| 25 | Henry Winman | .4279 | 1984 | |
| 26 | John Hankins | .4275 | 1989 | |
| 27 | Júlio Ortíz | .4272 | 1986 | |
| 27 | Jonathan Brewer | .4272 | 1990 | |
| 27 | Jonathan Owens | .4272 | 1984 | |
| 30 | Júlio Reyes | .4267 | 1985 | |
| 31 | Jorge Castillo | .4266 | 1990 | |
| 32 | Liam Cornett | .4262 | 1978 | |
| 33 | Joe Montgomery | .4250 | 2000 | |
| 34 | Jerome Green | .4239 | 1982 | |
| 35 | Lee Sloan | .4236 | 1989 | |
| 36 | Eugene Penn | .4228 | 1989 | |
| 37 | Bob King | .4227 | 1989 | |
| 38 | Mark Thomas | .4224 | 1978 | |
| 39 | Clyde Moore | .4220 | 1995 | |
| 40 | Peter Fitzpatrick | .4215 | 1986 | |
| 41 | Frank Scott | .4211 | 1977 | |
| 42 | Bob Davis | .4206 | 1977 | |
| 43 | Júlio Vargas | .4205 | 2007 | |
| 44 | Henry O'Sullivan | .4203 | 1983 | |
| 45 | Leo Stephens | .4201 | 2012 | |
| 46 | Jack Shelton | .4200 | 1991 | |
| 47 | Ken Harris | .4192 | 1988 | |
| 48 | Bill Rhyne | .4189 | 1976 | |
| 49 | Greg Blair | .4185 | 1980 | |
| 50 | Leonardo Rodríguez | .4180 | 2019 | |
| 51 | Michael Reid | .4178 | 1980 | |
| 52 | Manny Hill | .4175 | 1984 | |
| 53 | Yaichiro Ozawa | .4171 | 1983 | |
| 53 | Augusto Freitas | .4171 | 1994 | |
| 55 | Dave Curran | .4167 | 1988 | |
| 55 | Kevin Wright | .4167 | 1974 | |
| 57 | Paul Hoover | .4165 | 2014 | |
| 58 | Dan Roberts | .4161 | 1988 | |
| 59 | Félix Salas | .4155 | 1982 | |
| 60 | Pete Jackson | .4153 | 2012 | |
| 61 | Ramón Durán | .4151 | 1972 | |
| 62 | Rafael Franco | .4150 | 1980 | |
| 63 | Carlos Pérez | .4149 | 1982 | |
| 64 | Brian Allen | .4146 | 1988 | |
| 64 | Pancho Muńóz | .4146 | 1974 | |
| 66 | Yoshikazu Endo | .4145 | 1989 | |
| 67 | Richard Smiley | .4140 | 1984 | |
| 68 | Jerome Green | .4135 | 1981 | |
| 68 | Mike Foster | .4135 | 1989 | |
| 70 | Augusto Carrillo | .4130 | 1981 | |
| 71 | Roberto Morán | .4129 | 2009 | |
| 72 | Guillermo Reyes | .4128 | 1976 | |
| 73 | José Aguilar | .4125 | 1972 | |
| 74 | Rory Abrams | .4122 | 1972 | |
| 75 | José López | .4115 | 1988 | |
| 76 | Jang-lu Lew | .4113 | 1987 | |
| 77 | Yuichi Kobayashi | .4112 | 1988 | |
| 78 | Jason Fulton | .4109 | 1980 | |
| 79 | Gary Jackson | .4108 | 2004 | |
| 80 | José Aguilar | .4107 | 1973 | |
| 81 | Roberto Veeck | .4104 | 1990 | |
| 82 | Teo Suárez | .4098 | 1989 | |
| 83 | Russ Hairston | .4097 | 2012 | |
| 84 | Ramón Rivero | .4095 | 2008 | |
| 84 | Leslie Bonden | .4095 | 1988 | |
| 86 | Roy Fuller | .4092 | 1974 | |
| 87 | Richie Hall | .4086 | 1975 | |
| 88 | Ben Davis | .4085 | 1973 | |
| 89 | Rafael Rico | .4081 | 2004 | |
| 89 | Jesús Chahoud | .4081 | 1991 | |
| 91 | Bob O'Neil | .4080 | 1987 | |
| 92 | Dennis Kerr | .4073 | 2007 | |
| 93 | Luke McMillan | .4071 | 2008 | |
| 94 | Wayne Price | .4070 | 2006 | |
| 95 | Ben Fowler | .4069 | 1990 | |
| 96 | Fred Krause | .4068 | 1972 | |
| 97 | Neil Roberts | .4065 | 1990 | |
| 98 | Kevin Wright | .4054 | 1975 | |
| 98 | Randy Wilson | .4054 | 1976 | |
| 100 | Jim Miller | .4048 | 1984 |
