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|
| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | WHIP | YEAR | Open Season Leaderboard |
|---|---|---|---|---|
| 1 | John Wilkins | 0.96 | 2015-2026 | |
| 2 | Aurelio López# | 1.04 | 2022-2031 | |
| 3 | Lou Hartling | 1.07 | 2019-2030 | |
| 3 | Juan Guillén# | 1.07 | 2027-2030 | |
| 5 | Eddie Kop# | 1.08 | 2023-2032 | |
| 6 | Wes Hamm# | 1.10 | 2021-2027 | |
| 6 | Javier Mora# | 1.10 | 2020-2031 | |
| 6 | Gary Bailey | 1.10 | 2022-2031 | |
| 6 | Walt Coffman# | 1.10 | 2026-2032 | |
| 10 | Wayne Craig | 1.12 | 2015-2023 | |
| 11 | Hunter Wilson | 1.16 | 2019-2031 | |
| 11 | Allen Blair# | 1.16 | 2015-2032 | |
| 13 | Wayne Hurst | 1.18 | 2015-2028 | |
| 13 | Pedro Valdéz# | 1.18 | 2020-2031 | |
| 15 | Vincent Hall# | 1.19 | 2021-2031 | |
| 15 | Bobby Swain# | 1.19 | 2020-2031 | |
| 17 | Rafael Rodríguez# | 1.20 | 2026-2031 | |
| 17 | Adrián Fierro# | 1.20 | 2017-2032 | |
| 17 | Bartolomeu Lio# | 1.20 | 2019-2032 | |
| 20 | Nathaniel Riley | 1.21 | 2016-2030 | |
| 20 | Manny Caraballo# | 1.21 | 2022-2028 | |
| 22 | Nicholas Wells# | 1.23 | 2019-2032 | |
| 22 | John Braun | 1.23 | 2014-2022 | |
| 24 | George Frazier# | 1.24 | 2017-2031 | |
| 24 | Rafael Cardona# | 1.24 | 2022-2032 | |
| 26 | Benny York | 1.25 | 2016-2027 | |
| 26 | Jeff Hale | 1.25 | 2014-2027 | |
| 26 | Rich Hunter | 1.25 | 2014-2021 | |
| 26 | Roderick Rhodes | 1.25 | 2017-2028 | |
| 30 | Héctor Alarcon# | 1.26 | 2015-2027 | |
| 30 | Francis McBride# | 1.26 | 2023-2027 | |
| 32 | John Holley | 1.27 | 2014-2022 | |
| 32 | Paul Díaz | 1.27 | 2019-2030 | |
| 34 | Domingo Ramírez# | 1.30 | 2022-2030 | |
| 35 | Cory Sanders# | 1.31 | 2021-2031 | |
| 35 | Félix Jiménez | 1.31 | 2018-2028 | |
| 35 | Henry Hall | 1.31 | 2015-2026 | |
| 35 | Jon Dunn# | 1.31 | 2024-2032 | |
| 39 | Arnie Pittman# | 1.32 | 2022-2030 | |
| 39 | Pedro Castro# | 1.32 | 2018-2032 | |
| 39 | Juan Torres# | 1.32 | 2021-2032 | |
| 42 | Chip Bishop | 1.33 | 2018-2028 | |
| 42 | Andy Coker | 1.33 | 2016-2026 | |
| 44 | Juan Díaz# | 1.35 | 2025-2030 | |
| 44 | Luis Torres# | 1.35 | 2024-2031 | |
| 44 | Tyler MacHugh# | 1.35 | 2023-2032 | |
| 47 | Rafael Rivera# | 1.36 | 2027-2032 | |
| 47 | John Woods# | 1.36 | 2024-2032 | |
| 47 | Truman Valentine# | 1.36 | 2022-2031 | |
| 50 | Roger Garrett | 1.37 | 2014-2024 | |
| 50 | Pat Horton | 1.37 | 2014-2019 | |
| 52 | Leslie Brooks | 1.38 | 2019-2030 | |
| 53 | Gustavo Pérez# | 1.42 | 2027-2032 | |
| 54 | Robbie Baxter# | 1.45 | 2022-2032 | |
| 54 | António Marés# | 1.45 | 2024-2031 | |
| 56 | Allen Yohemas# | 1.48 | 2022-2031 | |
| 57 | Aaron Wise | 1.50 | 2019-2029 | |
| 58 | Harris Howard | 1.51 | 2014-2017 |
