 |
|
|
| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | ERA | YEAR | Open Season Leaderboard |
|---|---|---|---|---|
| 1 | Eric Cornett | 3.133 | 1960-1962 | |
| 2 | Bryant Morton | 3.153 | 1979-1984 | |
| 3 | Luis Gonzáles | 3.651 | 1958-1961 | |
| 4 | Alonso Correa | 3.689 | 1975-1982 | |
| 5 | Bob Riggs | 3.695 | 1923-1926 | |
| 6 | Hideyori Narita# | 3.701 | 1975-1990 | |
| 7 | Manuel Hernández | 4.195 | 1955-1960 | |
| 8 | Jesse O'Quinn | 4.350 | 1979-1985 | |
| 9 | Mario Valdéz | 4.511 | 1975-1982 | |
| 10 | Gerald Gallon | 4.656 | 1940-1944 | |
| 11 | Martin Southwell | 4.675 | 1975-1979 | |
| 12 | Cecil Wouters | 5.706 | 1938-1941 |
