 |
| |
| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | OBP | YEAR | Open Season Leaderboard |
|---|---|---|---|---|
| 1 | Ivan Rustoff# | .3916 | 1938-1947 | |
| 2 | Fumihiro Honda# | .3426 | 1938-1947 | |
| 3 | Yoshitomo Ishimoto# | .3235 | 1939-1947 | |
| 4 | Yoshitsugu Fukumoto# | .3022 | 1938-1947 | |
| 5 | Toyohiro Yamaguchi | .2958 | 1938-1946 | |
| 6 | Takehiko Fujita | .2640 | 1938-1943 |
