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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | OBP | YEAR | Open Career Leaderboard |
|---|---|---|---|---|
| 1 | Walt Pearson | .5479 | 1917 | |
| 2 | Chris Mullins | .5172 | 1967 | |
| 3 | Francisco Rivas# | .4872 | 1985 | |
| 4 | Tim Kennedy | .4848 | 1975 | |
| 5 | Carlos González | .4827 | 1968 | |
| 6 | Artie Massey# | .4818 | 1982 | |
| 7 | Erik Bisseling | .4787 | 1966 | |
| 8 | Roland Peters | .4774 | 1951 | |
| 9 | Chris Mullins | .4758 | 1968 | |
| 10 | Bernardo Carrión | .4721 | 1982 | |
| 11 | Cisco Guzmán# | .4713 | 1990 | |
| 12 | Sergio López | .4691 | 1956 | |
| 13 | Chris Mullins | .4681 | 1966 | |
| 14 | Mark Maddox# | .4677 | 1985 | |
| 15 | Jared Morgan | .4675 | 1961 | |
| 16 | Eddie Brandt | .4630 | 1965 | |
| 17 | Alfonso González | .4629 | 1923 | |
| 18 | Luis Martínez | .4618 | 1983 | |
| 19 | Jim Carrier# | .4614 | 1990 | |
| 19 | Carlos López# | .4614 | 1990 | |
| 21 | Erik Bisseling | .4606 | 1967 | |
| 22 | Les Chetwynd | .4603 | 1955 | |
| 22 | Carl Case# | .4603 | 1990 | |
| 24 | Deron Evans | .4602 | 1968 | |
| 25 | Jeff Jackson | .4596 | 1957 | |
| 26 | Luke Todd | .4590 | 1955 | |
| 27 | John Orr | .4574 | 1958 | |
| 28 | Manny Ibáńez | .4573 | 1955 | |
| 28 | Jorge Flores | .4573 | 1961 | |
| 30 | Eddie Neuvel# | .4567 | 1990 | |
| 31 | José Pérez | .4558 | 1928 | |
| 32 | Jorge Flores | .4545 | 1963 | |
| 33 | Jing-shuan Zhang | .4541 | 1935 | |
| 34 | Brian Grant | .4539 | 1980 | |
| 35 | Roberto Chávez | .4536 | 1967 | |
| 36 | Will Baker | .4531 | 1959 | |
| 37 | Stefan Gilyazitdinov | .4528 | 1966 | |
| 38 | Germán Hernández | .4527 | 1954 | |
| 39 | Zi-xing Que# | .4522 | 1985 | |
| 40 | Luis Hernández | .4518 | 1954 | |
| 41 | Gene Davis | .4510 | 1956 | |
| 42 | Motoshige Suzuki# | .4509 | 1989 | |
| 43 | Chris Mullins | .4508 | 1969 | |
| 43 | António Herrera | .4508 | 1960 | |
| 45 | Mervin Lange | .4505 | 1932 | |
| 46 | Aaron Maryadi | .4503 | 1936 | |
| 47 | Enrique López | .4499 | 1947 | |
| 48 | Francisco Pereira | .4498 | 1956 | |
| 49 | Chih Gu | .4495 | 1982 | |
| 50 | Sidney Edwards | .4493 | 1956 | |
| 51 | Roberto Herrera | .4491 | 1967 | |
| 52 | Don Martínez | .4477 | 1975 | |
| 53 | Bartolo Gómez | .4476 | 1982 | |
| 54 | Fernando Méndez | .4473 | 1958 | |
| 55 | Emílio Reyna# | .4471 | 1988 | |
| 56 | Félix Vázquez | .4468 | 1949 | |
| 57 | Ricardo Ortíz | .4463 | 1958 | |
| 58 | Bruce Snyder | .4462 | 1958 | |
| 59 | Jawhar Akram | .4450 | 1975 | |
| 60 | Jason Fowler | .4449 | 1959 | |
| 61 | Júlio Lara | .4444 | 1949 | |
| 62 | Ernie Tucker | .4430 | 1982 | |
| 62 | Shawn McCoy | .4430 | 1949 | |
| 64 | Juan Ortíz | .4429 | 1936 | |
| 65 | Tobias Schusetka# | .4427 | 1982 | |
| 65 | Christian Parent | .4427 | 1967 | |
| 67 | Ricardo Moya# | .4418 | 1983 | |
| 68 | Ricardo Vargas | .4415 | 1945 | |
| 69 | George Hatfield | .4413 | 1947 | |
| 70 | Luis Tirado | .4403 | 1921 | |
| 71 | Gary Reynolds | .4402 | 1952 | |
| 72 | James Miller | .4397 | 1965 | |
| 73 | Mike Anderson | .4394 | 1965 | |
| 74 | Francis Wiley | .4388 | 1950 | |
| 75 | José Alvarado# | .4385 | 1985 | |
| 75 | Ray Moran | .4385 | 1957 | |
| 75 | Tetsui Girard# | .4385 | 1989 | |
| 78 | António Herrera | .4384 | 1958 | |
| 78 | Cisco Guzmán# | .4384 | 1989 | |
| 80 | Alfonso Sánchez# | .4377 | 1987 | |
| 81 | Martin Jordan | .4376 | 1968 | |
| 82 | José Hernández | .4374 | 1978 | |
| 83 | James Hughes | .4372 | 1975 | |
| 84 | Matt James | .4371 | 1976 | |
| 85 | Éric Perin | .4368 | 1956 | |
| 85 | Clint Dodd | .4368 | 1912 | |
| 87 | José Salinas | .4367 | 1920 | |
| 88 | Jesús Martínez | .4360 | 1958 | |
| 89 | Gene Davis | .4356 | 1955 | |
| 89 | Chad McGuire# | .4356 | 1989 | |
| 91 | Felipe Galván | .4354 | 1929 | |
| 92 | Dennis Page# | .4353 | 1990 | |
| 93 | Pamphile Morandi | .4352 | 1963 | |
| 93 | Cipriano Sansovino | .4352 | 1988 | |
| 95 | Gerald Carr | .4351 | 1979 | |
| 96 | Juan Miranda | .4340 | 1921 | |
| 97 | Tony Rivera# | .4338 | 1983 | |
| 98 | Xavier Martínez | .4337 | 1954 | |
| 99 | Dennis Lewis | .4336 | 1968 | |
| 99 | Neal Wibberley | .4336 | 1964 |
