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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | WHIP | YEAR | Open Season Leaderboard |
|---|---|---|---|---|
| 1 | Ricardo Macías# | 0.95 | 2031-2039 | |
| 2 | Gabriel López# | 1.02 | 2030-2039 | |
| 3 | Juan Romero | 1.07 | 2007-2026 | |
| 4 | José Morán# | 1.09 | 2021-2039 | |
| 4 | Luis Pérez | 1.09 | 2007-2011 | |
| 6 | Juan Castro | 1.10 | 2012-2030 | |
| 6 | Miguel González# | 1.10 | 2024-2039 | |
| 8 | Ramón Manuel# | 1.12 | 2024-2039 | |
| 8 | Juan Silva | 1.12 | 2007-2013 | |
| 10 | Martín Ramírez | 1.13 | 2014-2036 | |
| 10 | David Mendoza# | 1.13 | 2030-2039 | |
| 12 | Bartolo Jaimes# | 1.15 | 2028-2039 | |
| 13 | José Nieto | 1.17 | 2009-2018 | |
| 13 | Carlos Ruíz | 1.17 | 2017-2025 | |
| 13 | Carlos Macías | 1.17 | 2030-2037 | |
| 16 | Bartolo Anaya# | 1.18 | 2030-2038 | |
| 16 | Roberto Gallardo# | 1.18 | 2028-2039 | |
| 16 | Ismael López# | 1.18 | 2024-2039 | |
| 19 | José Lozano | 1.19 | 2018-2037 | |
| 20 | Octávio Rivera | 1.20 | 2008-2027 | |
| 20 | Paco Martínez# | 1.20 | 2026-2039 | |
| 22 | Fernando Cabrera# | 1.21 | 2029-2039 | |
| 23 | Dani Júlio# | 1.22 | 2034-2039 | |
| 23 | Alberto Galván | 1.22 | 2007-2021 | |
| 25 | Carlos Amador# | 1.23 | 2026-2039 | |
| 26 | Domingo Rodríguez | 1.24 | 2013-2021 | |
| 26 | Ignacio Filgueira# | 1.24 | 2025-2039 | |
| 26 | José Durango | 1.24 | 2011-2020 | |
| 29 | Mario García# | 1.25 | 2032-2039 | |
| 30 | Alberto Guerra | 1.26 | 2010-2020 | |
| 30 | Iván Chávez# | 1.26 | 2030-2039 | |
| 32 | Robinson Flores# | 1.27 | 2026-2039 | |
| 33 | Manuel García# | 1.28 | 2032-2039 | |
| 34 | Juan Sorondo | 1.29 | 2018-2032 | |
| 35 | Jesús López# | 1.30 | 2017-2039 | |
| 35 | Héctor Galló | 1.30 | 2014-2023 | |
| 35 | Alonso Gutiérrez# | 1.30 | 2029-2039 | |
| 38 | Orlando Ruíz | 1.31 | 2007-2011 | |
| 39 | Carlos Peña | 1.32 | 2011-2029 | |
| 39 | Cristo Costello# | 1.32 | 2029-2038 | |
| 41 | Fernando Moreno# | 1.34 | 2030-2039 | |
| 41 | Sixto Castro# | 1.34 | 2033-2039 | |
| 41 | Tetsuo Okazaki | 1.34 | 2008-2017 | |
| 41 | José Castillo | 1.34 | 2015-2038 | |
| 45 | Mario García | 1.35 | 2018-2033 | |
| 46 | Fernando Vega# | 1.37 | 2028-2039 | |
| 47 | Cristo Román | 1.47 | 2009-2016 |
