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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | PCT | YEAR | Open Season Leaderboard |
|---|---|---|---|---|
| 1 | Brad Spencer | .9969 | 1970-1980 | |
| 2 | Lorenzo Ruíz | .9967 | 1957-1967 | |
| 3 | Fraser Blevins | .9956 | 1974-1984 | |
| 4 | Robert Jones | .9930 | 1982-1986 | |
| 5 | Héctor Palomarez# | .9906 | 1984-1987 | |
| 6 | Conan Mercer | .9895 | 1913-1921 | |
| 7 | Ángel Camacho | .9875 | 1975-1981 | |
| 7 | Jim Crowe | .9875 | 1925-1934 | |
| 9 | Salvador Gómez | .9842 | 1951-1957 | |
| 10 | Diego Rodríguez | .9829 | 1940-1948 |
