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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | WHIP | YEAR | Open Season Leaderboard |
|---|---|---|---|---|
| 1 | Malulani Anakone# | 1.07 | 2025-2028 | |
| 2 | José Pueblo | 1.10 | 2026-2028 | |
| 3 | Manuel Sánchez# | 1.11 | 2026-2028 | |
| 4 | Luis Arreola# | 1.15 | 2024-2027 | |
| 5 | Vitorio Méndez | 1.18 | 2020-2025 | |
| 6 | Xavier Padilla# | 1.19 | 2021-2024 | |
| 6 | Leoncio Ulibarri | 1.19 | 2023-2028 | |
| 8 | Fernando Elías# | 1.20 | 2024-2028 | |
| 9 | Ash Ibarra# | 1.22 | 2022-2024 | |
| 9 | Rob Ford# | 1.22 | 2026-2030 | |
| 11 | Rich Choquette# | 1.23 | 2028-2030 | |
| 11 | Efren Rasonable# | 1.23 | 2028-2033 | |
| 13 | Jeff Greer# | 1.25 | 2026-2029 | |
| 13 | Gob Bluth# | 1.25 | 2024-2028 | |
| 15 | Greguorio Espora# | 1.29 | 2030-2033 | |
| 16 | John Orton | 1.33 | 2022-2025 | |
| 16 | Tomás Vargas# | 1.33 | 2023-2025 | |
| 18 | Felipe Filipe# | 1.35 | 2030-2033 | |
| 19 | Ricardo Ramírez# | 1.39 | 2021-2025 | |
| 20 | José Vélez# | 1.51 | 2029-2032 |
