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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | WHIP | YEAR | Open Season Leaderboard |
|---|---|---|---|---|
| 1 | Everton Stack | 0.79 | 1903-1914 | |
| 2 | Jan Pajkos | 0.93 | 1902-1913 | |
| 3 | Tomás Pérez# | 0.95 | 1904-1915 | |
| 4 | Rafael García# | 0.98 | 1903-1915 | |
| 4 | Ezequiel Vásquez# | 0.98 | 1903-1915 | |
| 6 | Miguel Acosta# | 0.99 | 1903-1906 | |
| 6 | Manuel Cortés# | 0.99 | 1903-1915 | |
| 6 | Ben Downie | 0.99 | 1902-1906 | |
| 9 | Isidoro García# | 1.00 | 1902-1915 | |
| 10 | Dennis Lamkin | 1.01 | 1901-1909 | |
| 10 | Guillermo Rivera# | 1.01 | 1904-1915 | |
| 12 | Avelino Saldívar# | 1.03 | 1905-1915 | |
| 12 | Ted Balloon# | 1.03 | 1901-1915 | |
| 12 | Luis Sánchez# | 1.03 | 1906-1915 | |
| 12 | Efraín Calderón# | 1.03 | 1903-1915 | |
| 16 | Lennon Robertson# | 1.04 | 1903-1915 | |
| 16 | Nicodemo Ceja# | 1.04 | 1902-1915 | |
| 16 | Marcelo Moreno# | 1.04 | 1903-1915 | |
| 16 | Cid Maldonado# | 1.04 | 1903-1915 | |
| 16 | Nerón Jiménez | 1.04 | 1901-1910 | |
| 16 | Pablo García# | 1.04 | 1903-1915 | |
| 22 | Miguel García# | 1.05 | 1904-1915 | |
| 22 | Plácido Polanco# | 1.05 | 1902-1915 | |
| 22 | Ángel González | 1.05 | 1901-1906 | |
| 22 | Ernesto Bastida | 1.05 | 1901-1904 | |
| 22 | Marcos García | 1.05 | 1901-1903 | |
| 22 | Armando Rodríguez# | 1.05 | 1902-1915 | |
| 28 | Apolonio Delgado | 1.06 | 1901-1904 | |
| 28 | Carmelo Castillo# | 1.06 | 1903-1915 | |
| 30 | Zacarías Nájera# | 1.07 | 1902-1906 | |
| 30 | Leonel Alvarrán# | 1.07 | 1903-1915 | |
| 30 | Cayetano Rodríguez# | 1.07 | 1906-1915 | |
| 30 | Martín Sigala | 1.07 | 1901-1907 | |
| 30 | José Rico# | 1.07 | 1906-1915 | |
| 30 | René Calva# | 1.07 | 1904-1915 | |
| 30 | Marco Colón# | 1.07 | 1903-1915 | |
| 30 | Urbano Reyna# | 1.07 | 1903-1913 | |
| 30 | Carl Gillen | 1.07 | 1906-1915 | |
| 39 | Luis Arrieta | 1.08 | 1901-1905 | |
| 39 | Egidio Olguín# | 1.08 | 1905-1909 | |
| 39 | Carlos Rubio# | 1.08 | 1901-1909 | |
| 39 | Urso Ramírez# | 1.08 | 1903-1915 | |
| 39 | Facundo Cruz | 1.08 | 1901-1904 | |
| 39 | Isma'il Farraj# | 1.08 | 1905-1914 | |
| 39 | Simeón González# | 1.08 | 1902-1905 | |
| 39 | Luis Castro# | 1.08 | 1903-1915 | |
| 47 | Rubén Meza# | 1.09 | 1904-1915 | |
| 47 | Teodoro Morales# | 1.09 | 1903-1915 | |
| 47 | Diego Sánchez# | 1.09 | 1902-1915 | |
| 47 | Julio Ruiz | 1.09 | 1901-1904 | |
| 47 | Carlos Sosa | 1.09 | 1901-1907 | |
| 47 | Hansel Macías# | 1.09 | 1906-1915 | |
| 47 | Nuño González# | 1.09 | 1902-1915 | |
| 47 | John Madding | 1.09 | 1901-1904 | |
| 47 | Miguel Escobar# | 1.09 | 1905-1909 | |
| 47 | Domingo Villalobos | 1.09 | 1901-1914 | |
| 47 | Gerardo Escobar | 1.09 | 1901-1906 | |
| 58 | Vittorio Gambachini | 1.10 | 1909-1915 | |
| 58 | Gabriel Palacios# | 1.10 | 1910-1915 | |
| 58 | Marco Acosta# | 1.10 | 1902-1915 | |
| 58 | Orrin Brunskill | 1.10 | 1901-1903 | |
| 58 | Alistair Oakley | 1.10 | 1901-1904 | |
| 58 | José María Tello# | 1.10 | 1905-1915 | |
| 58 | Premislao Soriano# | 1.10 | 1906-1915 | |
| 58 | Roberto Navarrete# | 1.10 | 1906-1915 | |
| 58 | Alcides Camacho# | 1.10 | 1904-1915 | |
| 58 | Alfonso Luján# | 1.10 | 1904-1915 | |
| 58 | Héctor Delgado# | 1.10 | 1903-1915 | |
| 58 | Ben Browne# | 1.10 | 1908-1915 | |
| 58 | Juan Martín | 1.10 | 1901-1906 | |
| 58 | Eduardo Padilla# | 1.10 | 1905-1915 | |
| 58 | Elio Bautista# | 1.10 | 1905-1915 | |
| 73 | Padraic Quinlevan# | 1.11 | 1902-1908 | |
| 73 | José Medellín# | 1.11 | 1903-1915 | |
| 73 | Manuel Martínez | 1.11 | 1901-1907 | |
| 73 | Héctor Espinosa# | 1.11 | 1905-1915 | |
| 73 | Oscar Burt | 1.11 | 1901-1905 | |
| 73 | Bob Gibson | 1.11 | 1901-1904 | |
| 73 | Ewan Mackenzie | 1.11 | 1901-1915 | |
| 73 | Odiseo Montoya# | 1.11 | 1904-1905 | |
| 73 | Emilio Castillo | 1.11 | 1901-1904 | |
| 73 | Jeffrey McCarthy | 1.11 | 1901-1903 | |
| 73 | Garrett Colgan | 1.11 | 1901-1905 | |
| 73 | Aureliano Santa# | 1.11 | 1905-1915 | |
| 73 | Renato Díaz# | 1.11 | 1903-1915 | |
| 73 | Luis Barajas | 1.11 | 1901-1907 | |
| 73 | Esteban Hernández | 1.11 | 1901-1903 | |
| 88 | Marco Flores# | 1.12 | 1903-1906 | |
| 88 | Isiah Reddick | 1.12 | 1901-1905 | |
| 88 | Eunosto Gutiérrez# | 1.12 | 1902-1915 | |
| 88 | Jesús Garcés# | 1.12 | 1908-1915 | |
| 88 | Mateo Méndez# | 1.12 | 1902-1908 | |
| 88 | Dalmacio Nájar# | 1.12 | 1905-1908 | |
| 88 | Pedro Jácquez# | 1.12 | 1902-1910 | |
| 88 | Damián Medina# | 1.12 | 1902-1915 | |
| 88 | Matías Aparicio | 1.12 | 1902-1905 | |
| 88 | Adriel Cisneros# | 1.12 | 1905-1915 | |
| 98 | José Hernández# | 1.13 | 1903-1915 | |
| 98 | Sansón Apaez# | 1.13 | 1906-1915 | |
| 98 | Ryan Wade | 1.13 | 1901-1904 |
