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| |
| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | SLG | YEAR | Open Career Leaderboard |
|---|---|---|---|---|
| 1 | Masao Shiotani# | .5385 | 1957 | |
| 2 | Honoo Fujioka# | .5163 | 1951 | |
| 3 | Ayahito Yamamoto# | .5147 | 1960 | |
| 4 | Bungo Arai# | .5073 | 1961 | |
| 5 | Masao Shiotani# | .5000 | 1958 | |
| 6 | Tomonori Shimada# | .4837 | 1959 | |
| 7 | Binya Nishi# | .4807 | 1961 | |
| 8 | Ayahito Yamamoto# | .4774 | 1961 | |
| 9 | Honoo Fujioka# | .4741 | 1956 | |
| 10 | Daijiro Sato# | .4680 | 1961 | |
| 11 | Masao Shiotani# | .4603 | 1960 | |
| 12 | Ayahito Yamamoto# | .4552 | 1956 | |
| 13 | Tomonori Shimada# | .4529 | 1956 | |
| 14 | Honoo Fujioka# | .4528 | 1959 | |
| 15 | Binya Nishi# | .4492 | 1960 | |
| 16 | Yukio Smith# | .4392 | 1958 | |
| 17 | Bungo Arai# | .4375 | 1960 | |
| 18 | Masao Shiotani# | .4336 | 1959 | |
| 19 | Manzo Shimabukuro | .4296 | 1952 | |
| 20 | Yamahiko Hirata# | .4272 | 1961 | |
| 21 | Yasunori Smith# | .4266 | 1956 | |
| 22 | Yukio Smith# | .4257 | 1957 | |
| 23 | Daijiro Sato# | .4251 | 1960 | |
| 24 | Ayahito Yamamoto# | .4179 | 1953 | |
| 25 | Sunao Morioka# | .4143 | 1958 | |
| 26 | Ayahito Yamamoto# | .4132 | 1957 | |
| 27 | Ayahito Yamamoto# | .4110 | 1959 | |
| 28 | Yasunori Smith# | .4004 | 1957 | |
| 29 | Ayahito Yamamoto# | .3993 | 1958 | |
| 30 | Kiyuu Yamashita# | .3985 | 1956 | |
| 31 | Binya Nishi# | .3911 | 1959 | |
| 32 | Masao Shiotani# | .3901 | 1954 | |
| 33 | Tomonori Shimada# | .3845 | 1957 | |
| 34 | Tomonori Shimada# | .3776 | 1958 | |
| 35 | Honoo Fujioka# | .3755 | 1950 | |
| 36 | Binya Nishi# | .3741 | 1958 | |
| 37 | Yukio Smith# | .3735 | 1954 | |
| 38 | Honoo Fujioka# | .3731 | 1958 | |
| 39 | Ritsuki Iwasa# | .3724 | 1960 | |
| 40 | Ritsuki Iwasa# | .3695 | 1956 | |
| 41 | Atsushi Tanaka# | .3668 | 1960 | |
| 42 | Atsushi Tanaka# | .3661 | 1958 | |
| 43 | Shinji Kishida | .3649 | 1950 | |
| 44 | Honoo Fujioka# | .3647 | 1957 | |
| 45 | Ritsuki Iwasa# | .3622 | 1959 | |
| 46 | Yukio Smith# | .3587 | 1953 | |
| 47 | Atsushi Tanaka# | .3563 | 1961 | |
| 48 | Michihiko Ishikawa# | .3561 | 1960 | |
| 49 | Yukio Smith# | .3559 | 1960 | |
| 50 | Yukio Smith# | .3529 | 1956 | |
| 51 | Michihiko Ishikawa# | .3528 | 1961 | |
| 52 | Norihiko Uemura | .3478 | 1955 | |
| 53 | Ginnosuke Smith# | .3438 | 1961 | |
| 54 | Tomonori Shimada# | .3433 | 1955 | |
| 55 | Ritsuki Iwasa# | .3397 | 1961 | |
| 56 | Ukyo Tada | .3355 | 1950 | |
| 57 | Kiyuu Yamashita# | .3349 | 1952 | |
| 58 | Takuyou Koyama | .3325 | 1959 | |
| 59 | Yukio Smith# | .3314 | 1959 | |
| 60 | Mutsuhito Ezaki# | .3297 | 1956 | |
| 61 | Harumi Kawai | .3291 | 1959 | |
| 62 | Atsushi Tanaka# | .3175 | 1959 | |
| 63 | Ayahito Yamamoto# | .3152 | 1952 | |
| 64 | Ritsuki Iwasa# | .3139 | 1957 | |
| 65 | Manzo Shimabukuro | .3127 | 1953 | |
| 66 | Mutsuhito Ezaki# | .3113 | 1961 | |
| 67 | Norihiko Uemura | .3026 | 1958 | |
| 68 | Mutsuhito Ezaki# | .3005 | 1955 | |
| 69 | Takuyou Koyama | .2997 | 1958 | |
| 70 | Takuyou Koyama | .2927 | 1954 | |
| 71 | Okyoito Nishimura# | .2792 | 1960 | |
| 72 | Norihiko Uemura | .2780 | 1956 | |
| 73 | Manzo Shimabukuro | .2727 | 1957 | |
| 74 | Yuuwa Nagashima | .2623 | 1950 | |
| 75 | Norihiko Uemura | .2411 | 1959 |
