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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | WHIP | YEAR | Open Season Leaderboard |
|---|---|---|---|---|
| 1 | Gabriel Gutiérrez | 0.84 | 2011-2020 | |
| 2 | José Santos | 0.87 | 2012-2026 | |
| 3 | José López | 0.89 | 2009-2018 | |
| 4 | Javier Gómez | 0.94 | 2014-2025 | |
| 5 | Ángel Valdéz | 0.95 | 2017-2026 | |
| 5 | Gustavo Luján# | 0.95 | 2029-2040 | |
| 7 | José Morín | 0.96 | 2016-2020 | |
| 8 | Xavier González | 0.97 | 2014-2036 | |
| 9 | Walt Porter# | 1.04 | 2027-2041 | |
| 10 | Gary Edwards | 1.05 | 2009-2018 | |
| 10 | Miguel Cordero# | 1.05 | 2027-2041 | |
| 12 | Jorge Valentín | 1.08 | 2030-2040 | |
| 12 | Clark Vallés# | 1.08 | 2029-2041 | |
| 14 | Juan Martínez | 1.09 | 2012-2025 | |
| 14 | Mal Benton | 1.09 | 2017-2029 | |
| 14 | Arturo Ramírez | 1.09 | 2013-2029 | |
| 17 | Ken Martínez# | 1.10 | 2031-2041 | |
| 17 | Iván Rosa | 1.10 | 2028-2040 | |
| 17 | Ron Gómez# | 1.10 | 2024-2041 | |
| 17 | Tomás Esparza | 1.10 | 2012-2039 | |
| 21 | Jesús Cantú | 1.12 | 2019-2040 | |
| 21 | Manuel Piñal# | 1.12 | 2032-2041 | |
| 23 | Fernando Vásquez# | 1.13 | 2030-2041 | |
| 23 | Joe Rivera | 1.13 | 2029-2038 | |
| 25 | Eiichi Nakao | 1.14 | 2010-2020 | |
| 25 | Domingo Pérez# | 1.14 | 2036-2041 | |
| 27 | Tony Salazar# | 1.15 | 2029-2041 | |
| 28 | Jorge Alou | 1.17 | 2021-2039 | |
| 28 | Alonso Flores# | 1.17 | 2030-2041 | |
| 30 | Carlton Minor# | 1.18 | 2027-2041 | |
| 31 | José Méndez | 1.19 | 2012-2025 | |
| 31 | Juan Gonzáles | 1.19 | 2023-2040 | |
| 33 | Jesús Salazar# | 1.20 | 2036-2041 | |
| 33 | Manuel Ávila# | 1.20 | 2021-2041 | |
| 35 | Ángel López# | 1.21 | 2031-2041 | |
| 35 | Jerry Collins | 1.21 | 2007-2024 | |
| 35 | José Rodríguez | 1.21 | 2028-2037 | |
| 38 | Alberto Caballero# | 1.23 | 2036-2041 | |
| 39 | Alfredo García | 1.24 | 2015-2028 | |
| 40 | Pedro Ramírez | 1.25 | 2007-2016 | |
| 40 | Humberto Hernández# | 1.25 | 2035-2041 | |
| 40 | Rafael Quintero | 1.25 | 2027-2035 | |
| 43 | Martin Rodríguez# | 1.26 | 2034-2041 | |
| 44 | Luis Cantú | 1.29 | 2022-2027 | |
| 44 | Emílio Alvarado | 1.29 | 2007-2012 | |
| 46 | Juan Román | 1.32 | 2014-2024 | |
| 47 | Jay Black# | 1.33 | 2021-2041 | |
| 48 | Alonso González | 1.35 | 2019-2031 | |
| 48 | José Gonzáles# | 1.35 | 2027-2041 | |
| 48 | Rafael Salas# | 1.35 | 2023-2041 | |
| 51 | Armando Rodríguez# | 1.37 | 2030-2041 | |
| 51 | Eduardo Camacho# | 1.37 | 2027-2041 | |
| 53 | António Rodríguez# | 1.44 | 2028-2041 | |
| 54 | Martín Martínez# | 1.45 | 2028-2041 | |
| 55 | Jerome Beaton | 1.46 | 2007-2013 | |
| 56 | Jorge Escamilla# | 1.48 | 2025-2041 |
