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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | WHIP | YEAR | Open Postseason Leaderboard |
|---|---|---|---|---|
| 1 | Alfredo Cruz# | 0.94 | 1894-1897 | |
| 2 | Héctor López | 0.95 | 1878-1889 | |
| 3 | Zeferino Duque | 1.02 | 1882-1891 | |
| 4 | Constancio Álvarez# | 1.03 | 1884-1897 | |
| 5 | Flaminio Martínez | 1.08 | 1880-1894 | |
| 6 | Fructuoso Noa | 1.13 | 1882-1895 | |
| 7 | Romualdo Baca | 1.14 | 1887-1896 | |
| 8 | Heliodoro Pérez | 1.18 | 1878-1889 | |
| 9 | Jesus Umana | 1.20 | 1878-1884 | |
| 9 | Cleto Correa# | 1.20 | 1889-1897 | |
| 9 | Pío Martínez | 1.20 | 1880-1892 | |
| 12 | Matías Villarreal# | 1.21 | 1892-1897 | |
| 13 | Ludovico Andrade | 1.22 | 1878-1885 | |
| 14 | Jorge Vélez# | 1.26 | 1888-1897 | |
| 15 | Ricardo Figueroa | 1.29 | 1882-1890 | |
| 15 | Ángel González# | 1.29 | 1895-1897 | |
| 17 | Bernal Echevana | 1.30 | 1890-1897 | |
| 17 | Esteban Quiros# | 1.30 | 1890-1897 | |
| 19 | Raúl Torres | 1.32 | 1882-1893 | |
| 20 | José Barreto# | 1.33 | 1887-1897 | |
| 21 | Juan Padilla | 1.35 | 1878-1883 | |
| 22 | Nemesio Hinojos# | 1.36 | 1889-1897 | |
| 23 | Zenobio Rodríguez# | 1.38 | 1889-1897 | |
| 24 | Ricardo Sánchez | 1.39 | 1887-1892 | |
| 25 | Curcio Cruz# | 1.40 | 1892-1897 | |
| 26 | Pandolfo Ortega# | 1.42 | 1884-1897 | |
| 27 | Armando Sorto# | 1.46 | 1888-1897 | |
| 27 | Ernesto Cruz | 1.46 | 1878-1891 | |
| 29 | Ignacio Barbosa | 1.47 | 1878-1883 | |
| 30 | Alberto López# | 1.49 | 1891-1897 | |
| 31 | Afrodisio García | 1.50 | 1887-1896 | |
| 31 | Eugenio Mendoza# | 1.50 | 1891-1892 | |
| 33 | Francisco Cueva# | 1.61 | 1890-1897 | |
| 34 | Juan Echeverría# | 1.74 | 1887-1897 | |
| 35 | Julio César López# | 1.77 | 1893-1897 |
