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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | OPS | YEAR | Open Season Leaderboard |
|---|---|---|---|---|
| 1 | Shigemasa Sato* | .9521 | 1926-1943 | |
| 2 | Rafael Martínez* | .9068 | 1927-1943 | |
| 3 | Fred Roberts* | .8769 | 1919-1932 | |
| 4 | Herb Jackson* | .8569 | 1911-1927 | |
| 5 | Carlos Helásquez | .8559 | 1964-1983 | |
| 6 | Callum Bourke | .8487 | 1954-1974 | |
| 7 | Jason Henry | .8247 | 1971-1987 | |
| 8 | Tony Daley | .8241 | 1961-1978 | |
| 9 | Lance Kaiser | .8116 | 1943-1956 | |
| 10 | Christian Cook# | .8071 | 1978-1990 | |
| 11 | Jeremy Wilson | .8013 | 1936-1947 | |
| 12 | Bill Collier* | .7994 | 1926-1942 | |
| 13 | Wop Ouwens# | .7914 | 1976-1991 | |
| 14 | José Bonilla | .7911 | 1930-1936 | |
| 15 | Wayne Cramphorn | .7852 | 1927-1933 | |
| 16 | Vincente Dávila | .7716 | 1965-1979 | |
| 17 | Germán Hernández | .7665 | 1955-1965 | |
| 18 | Jorge Durán | .7603 | 1914-1925 | |
| 19 | Ricardo Ortíz | .7595 | 1959-1970 | |
| 20 | Arnim Wille | .7512 | 1960-1977 | |
| 21 | Elmer Young | .7484 | 1978-1988 | |
| 22 | Mike Rúbio | .7463 | 1955-1967 | |
| 23 | Ari Frece | .7448 | 1932-1952 | |
| 24 | Ben MacGruder | .7328 | 1911-1918 | |
| 25 | Howard Wagner | .7313 | 1935-1942 | |
| 26 | Juan Carlos Rodríguez | .7311 | 1918-1930 | |
| 27 | Steven Powell# | .7261 | 1982-1989 | |
| 28 | Radislav Mares | .7175 | 1975-1983 | |
| 29 | Raúl Martínez | .7078 | 1969-1980 | |
| 30 | Charlie Butler | .6899 | 1977-1987 | |
| 31 | Jesús García | .6850 | 1914-1922 | |
| 32 | Joe Walker | .6840 | 1977-1982 | |
| 33 | Gary Lee | .6667 | 1939-1951 |
