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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | PCT | YEAR | Open Season Leaderboard |
|---|---|---|---|---|
| 1 | Miguel Castro | .9950 | 1917-1920 | |
| 2 | Stan Rainey | .9941 | 1911-1916 | |
| 3 | Gustavo Estorga | .9940 | 1924-1928 | |
| 4 | She Ruan | .9938 | 1976-1985 | |
| 5 | Alejandro García# | .9934 | 1986-1990 | |
| 6 | José Gonzáles | .9932 | 1957-1961 | |
| 7 | Rob Dickson | .9901 | 1975-1977 |
