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| |
| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | OPS | YEAR | Open Career Leaderboard |
|---|---|---|---|---|
| 1 | Kousei Ota# | .9508 | 1960 | |
| 2 | Kousei Ota# | .9504 | 1959 | |
| 3 | Kousei Ota# | .9406 | 1958 | |
| 4 | Kousei Ota# | .9146 | 1961 | |
| 5 | Hiroji Orido# | .9069 | 1960 | |
| 6 | Kousei Ota# | .8986 | 1957 | |
| 7 | Kiyoshi Yamasaki | .8646 | 1952 | |
| 8 | Kazuaki Mukai# | .8423 | 1960 | |
| 9 | Kousei Ota# | .8283 | 1955 | |
| 10 | Hiroji Orido# | .8257 | 1959 | |
| 11 | Kiyoshi Yamasaki | .8229 | 1951 | |
| 12 | Yasushi Mori | .8078 | 1951 | |
| 13 | Kiyohiro Aoyagi# | .8022 | 1961 | |
| 14 | Hiroji Orido# | .7973 | 1961 | |
| 15 | Ikuhiko Murata | .7961 | 1958 | |
| 16 | Jokichi Kono# | .7905 | 1961 | |
| 17 | Kazuaki Mukai# | .7885 | 1954 | |
| 18 | Hiroji Orido# | .7809 | 1958 | |
| 19 | Kiyohiro Aoyagi# | .7738 | 1960 | |
| 20 | Yakumo Nishi | .7658 | 1953 | |
| 21 | Tadao Hasegawa# | .7585 | 1956 | |
| 22 | Hiroji Orido# | .7551 | 1957 | |
| 23 | William Hancock# | .7548 | 1961 | |
| 24 | Kazuaki Mukai# | .7530 | 1957 | |
| 24 | Ikuhiko Murata | .7530 | 1955 | |
| 26 | Tadao Hasegawa# | .7491 | 1959 | |
| 27 | Jokichi Kono# | .7479 | 1959 | |
| 28 | Tadao Hasegawa# | .7454 | 1961 | |
| 29 | Kiyoshi Yamasaki | .7431 | 1958 | |
| 30 | Yasushi Mori | .7368 | 1950 | |
| 31 | Meguru Morioka# | .7357 | 1961 | |
| 32 | Michinao Okamoto | .7288 | 1952 | |
| 33 | Teiljo Otani# | .7208 | 1958 | |
| 34 | Meguru Morioka# | .7139 | 1956 | |
| 35 | William Hancock# | .7131 | 1960 | |
| 36 | Jokichi Kono# | .7108 | 1958 | |
| 37 | Kazuaki Mukai# | .7040 | 1958 | |
| 38 | Kiyohiro Aoyagi# | .7018 | 1958 | |
| 39 | Shouya Kishimoto | .6997 | 1951 | |
| 40 | Kazuaki Mukai# | .6967 | 1953 | |
| 41 | Kannon Yamamoto# | .6915 | 1955 | |
| 42 | Kazuaki Mukai# | .6913 | 1961 | |
| 43 | Teiljo Otani# | .6842 | 1955 | |
| 44 | Tadao Hasegawa# | .6830 | 1958 | |
| 45 | Koto Seki# | .6757 | 1960 | |
| 46 | Kazuaki Mukai# | .6735 | 1956 | |
| 47 | Shouya Kishimoto | .6311 | 1950 | |
| 48 | Teiljo Otani# | .6274 | 1956 | |
| 49 | Meguru Morioka# | .6014 | 1957 | |
| 50 | Kiyohito Nojima# | .5955 | 1957 | |
| 51 | Meguru Morioka# | .5939 | 1959 | |
| 52 | Tadao Hasegawa# | .5653 | 1960 | |
| 53 | Jokichi Kono# | .5626 | 1960 |
