12th Ryuo Ranking Tournament (1998-1999), Group 4
The winner of Group 4 advances to the main tournament.| Round 1 | Round 2 | Round 3 | Round 4 | Round 5 | |
|---|---|---|---|---|---|
| 7-dan Terutaka Yasue | Kubo | ||||
| 5-dan Toshiaki Kubo | Kubo | ||||
| 6-dan Masamitsu Tachi | Tachi | Kubo | |||
| 6-dan Hiroshi Kobayashi | |||||
| 8-dan Yukio Miyasaka | Shoshi | ||||
| 6-dan Kazuharu Shoshi | Miura | Kubo | |||
| 5-dan Yoshiyuki Kubota | Miura | ||||
| 6-dan Hirotaka Miura | |||||
| 9-dan Kunio Naito | Naito | ||||
| 7-dan Kazuo Azuma | Tanaka | ||||
| 7-dan Koichi Kodama | Tanaka | Tanaka | Kubo | ||
| 8-dan Kaishu Tanaka | |||||
| 6-dan Kozo Arimori | Arimori | ||||
| 6-dan Kenji Kanzaki | K Kobayashi |
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| 6-dan Noboru Kosaka | K Kobayashi |
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| 8-dan Kenji Kobayashi | |||||
| 9-dan Michio Ariyoshi | Ariyoshi | ||||
| 7-dan Yuji Maeda | Sugimoto | ||||
| 5-dan Shingo Hirafuji | Sugimoto | Sugimoto | |||
| 5-dan Masataka Sugimoto | |||||
| 6-dan Yoshiyuki Ueyama | Kawakami | ||||
| 4-dan Takeshi Kawakami | Horiguchi | Matsumoto | |||
| 5-dan Shuji Sato | Horiguchi | ||||
| 6-dan Koji Horiguchi | |||||
| 8-dan Yoshinori Sato | Iizuka | ||||
| 5-dan Hiroki Iizuka | Murooka | ||||
| 5-dan Shohei Takada | Murooka | Matsumoto | |||
| 6-dan Katsuhiko Murooka | |||||
| 6-dan Yaichio Ono | Matsumoto | ||||
| 4-dan Yoshiyuki Matsumoto | Matsumoto | ||||
| 7-dan Noboru Sakurai | Sakurai | ||||
| 9-dan Nobuyuki Ouchi |
Secondary Tournament
The winner of the secondary tournament advances to Group 3.| Round 1 | Round 2 | Round 3 | Round 4 | Round 5 | Round 6 | Round 7 | |
|---|---|---|---|---|---|---|---|
| 9-dan Nobuyuki Ouchi | Ouchi | ||||||
| 6-dan Yaichio Ono | Ouchi | ||||||
| 6-dan Masamitsu Tachi | Ouchi | ||||||
| 5-dan Shohei Takada | Takada | ||||||
| 8-dan Yoshinori Sato | Takada | Ouchi | |||||
| 6-dan Kazuharu Shoshi | |||||||
| 6-dan Koji Horiguchi | Ouchi | ||||||
| 5-dan Shuji Sato | Shu Sato |
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| 6-dan Yoshiyuki Ueyama | Shu Sato |
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| 9-dan Kunio Naito | Shu Sato |
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| 5-dan Shingo Hirafuji | Hirafuji | ||||||
| 7-dan Yuji Maeda | Hirafuji | Shu Sato |
Ouchi | ||||
| 6-dan Kozo Arimori | |||||||
| 6-dan Katsuhiko Murooka | |||||||
| 8-dan Kaishu Tanaka | Ouchi | ||||||
| 6-dan Noboru Kosaka | Kosaka | ||||||
| 6-dan Kenji Kanzaki | Kosaka | ||||||
| 9-dan Michio Ariyoshi | Kosaka | ||||||
| 7-dan Koichi Kodama | Kodama | ||||||
| 7-dan Kazuo Azuma | Kodama | Miura | |||||
| 4-dan Takeshi Kawakami | |||||||
| 6-dan Hiroyuki Miura | Iizuka | ||||||
| 5-dan Yoshiyuki Kubota | Miyasaka | ||||||
| 8-dan Yukio Miyasaka | Iizuka | ||||||
| 5-dan Hiroki Iizuka | Iizuka | ||||||
| 6-dan Hiroshi Kobayashi | Yasue | ||||||
| 7-dan Terutaka Yasue | Sakurai | Iizuka | Sugimoto | ||||
| 7-dan Noboru Sakurai | |||||||
| 8-dan Kenji Kobayashi | |||||||
| 5-dan Masataka Sugimoto | |||||||
Relegation Games
3 players are relegated to Group 5.
| 6-dan Hiroshi Kobayashi | Kubota |
|---|---|
| 5-dan Yoshiyuki Kubota | |
| 7-dan Kazuo Azuma | Kanzaki |
| 6-dan Kenji Kanzaki | |
| 7-dan Yuji Maeda | Maeda |
| 6-dan Yoshiyuki Ueyama | |
| 8-dan Yoshinori Sato | Sato |
| 6-dan Yaichio Ono |
| Round 1 | Round 2 | |
|---|---|---|
| 6-dan Hiroshi Kobayashi
| Azuma | |
 7-dan Kazuo Azuma
| Azuma | |
| 6-dan Yoshiyuki Ueyama
| Ono | |
| 6-dan Yaichio Ono
|