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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | OOBP | YEAR | Open Season Leaderboard |
|---|---|---|---|---|
| 1 | Micah Burridge | .2989 | 1948-1949 | |
| 2 | Ernesto Caboverde | .3063 | 1947-1950 | |
| 3 | Enrique Barrios* | .3480 | 1941-1943 | |
| 4 | Jong-beom Paek | .3501 | 1933-1936 | |
| 5 | Jimmy Simons | .3534 | 1940-1942 | |
| 6 | Borek Jerksak | .3606 | 1937-1947 | |
| 7 | Don Lord | .3608 | 1975-1981 | |
| 8 | Jesús Rentería# | .3616 | 1979-1984 | |
| 9 | William Piper | .3619 | 1953-1957 | |
| 10 | Ed Carpenter | .3678 | 1955-1960 | |
| 11 | Jorge Valdés | .3685 | 1934-1936 | |
| 12 | Brian Buck | .3692 | 1966-1971 | |
| 13 | Ryan Howe | .3710 | 1978-1982 | |
| 14 | Clement Wallace | .3796 | 1943-1945 | |
| 15 | Alonso Zumaya | .3799 | 1978-1985 | |
| 16 | Orlando Guillén | .3821 | 1977-1985 | |
| 17 | Esteban Méndez | .3831 | 1970-1974 | |
| 18 | Javier Hernández# | .3928 | 1983-1990 | |
| 19 | Gustavo Mercado | .3958 | 1960-1966 | |
| 20 | Jason Retter# | .3967 | 1975-1990 | |
| 21 | Tony Moura# | .4047 | 1983-1988 | |
| 22 | Jing-xiang Woo# | .4140 | 1982-1989 |
