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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | OPS | YEAR | Open Season Leaderboard |
|---|---|---|---|---|
| 1 | Francisco Vargas# | .9733 | 1979-1991 | |
| 2 | Charlemagne Freeman* | .9442 | 1934-1955 | |
| 3 | Tamasaburo Abe | .8751 | 1950-1961 | |
| 4 | Norbert Jones* | .8422 | 1946-1953 | |
| 5 | Petros Piatkowski* | .8370 | 1970-1978 | |
| 6 | Paul Green | .8052 | 1952-1966 | |
| 7 | Brenden Howson | .8049 | 1964-1970 | |
| 8 | Mathias Albertoni* | .8042 | 1953-1969 | |
| 9 | Vasily Jarovtsev | .7934 | 1968-1980 | |
| 10 | Héctor Cortés | .7845 | 1916-1928 | |
| 11 | Theodor Frenkiel | .7726 | 1945-1955 | |
| 12 | James Oswald | .7680 | 1935-1944 | |
| 13 | Mark Davenport | .7594 | 1914-1926 | |
| 14 | Jorge Medrano* | .7571 | 1923-1935 | |
| 15 | Brandon Moore | .7451 | 1911-1917 | |
| 16 | Henry Johnston# | .7449 | 1974-1990 | |
| 17 | Yunosuke Hayagawa | .7448 | 1971-1986 | |
| 18 | Kifle Kelueljang | .7442 | 1971-1984 | |
| 19 | Millard Montgomery | .7432 | 1970-1987 | |
| 20 | Ron Swallow# | .7420 | 1977-1991 | |
| 21 | Ángel Velásquez | .7379 | 1920-1929 | |
| 22 | Aatto Sala | .7361 | 1976-1990 | |
| 23 | Miguel Borbón | .7349 | 1925-1942 | |
| 24 | Albert McMurrich | .7284 | 1911-1920 | |
| 25 | Louis Tiekink | .7221 | 1975-1985 | |
| 26 | Pedro Quintanilla# | .7163 | 1977-1990 | |
| 27 | Cristo Gutiérrez | .7134 | 1931-1939 | |
| 28 | Ánibal Romero | .7065 | 1911-1917 | |
| 29 | Mahmud Kapkobi | .7023 | 1970-1977 | |
| 30 | Martin Jordan | .6986 | 1970-1981 | |
| 31 | Raúl Alfonzo | .6978 | 1938-1947 | |
| 32 | Battista Caccianemici | .6839 | 1970-1979 | |
| 33 | Pedro Pérez | .6801 | 1935-1948 | |
| 34 | Håkon Olsnes | .6695 | 1971-1981 | |
| 35 | Evan Leighton# | .6655 | 1976-1991 |
