| # | year | winner | runner-up | sgf |
|---|---|---|---|---|
| 1 | 1977 | Kataoka Satoshi | Ogawa Tomoko | sgf |
| 2 | 1978 | Kataoka Satoshi | Yamashiro Hiroshi | |
| 3 | 1979 | O Meien | Sonoda Yasutaka | sgf |
| 4 | 1980 | Kobayashi Satoru | Aragaki Takeshi | sgf |
| 5 | 1981 | Kobayashi Satoru | Aragaki Takeshi | sgf |
| 6 | 1982 | Hikosaka Naoto | Ishikura Noboru | sgf |
| 7 | 1983 | Tei Meiko | Yasuda Yasutoshi | sgf |
| 8 | 1984 | Ogata Masaki | Oya Koichi | sgf |
| 9 | 1985 | Michael Redmond | Muramatsu Ryuichi | sgf |
| 10 | 1986 | Cho Sonjin | Muramatsu Ryuichi | sgf |
| 4th Ryuen Cup | |||
|---|---|---|---|
| Kobayashi Satoru (6p) | Kobayashi Satoru | Kobayashi Satoru | Kobayashi Satoru B+R 1980-09-06 |
| Hata Hidefumi (3p) | |||
| Kanda Ei (4p) | Kanda Ei B+2.5 1980-03-04 |
||
| Ma Xiaochun (CN) | |||
| Ogawa Tomoko (4p) | Aragaki Takeshi | Aragaki Takeshi | |
| Aragaki Takeshi (5p) | |||
| Sonoda Yasutaka (4p) | Shao Zhenzhong W+R 1980-03-04 |
||
| Shao Zhenzhong (CN) | |||
| 5th Ryuen Cup | |||
|---|---|---|---|
| Kobayashi Satoru (6p) | Kobayashi Satoru | Kobayashi Satoru B+R 1981-06-06 |
Kobayashi Satoru B+R 1981-09-05 |
| Ono Nobuyuki (2p) | |||
| Song Xuelin (CN) | Song Xuelin | ||
| Ogawa Tomoko | |||
| Aragaki Takeshi | Aragaki Takeshi | Aragaki Takeshi | |
| Ito Yoji | |||
| Cao Dayuan (CN) | Yoda Norimoto | ||
| Yoda Norimoto | |||
| date | black | white | result | #mv | sgf |
|---|---|---|---|---|---|
| 1977-02-08 | Aragaki Takeshi | Ogawa Tomoko | W+R | 248 | sgf |
| 1977-06-07 | Ogawa Tomoko | Kobayashi Satoru | B+R | 249 | sgf |
| 1978-03-14 | Ogawa Tomoko | Yamashiro Hiroshi | W+R | 174 | sgf |