| Date | 
    Tournament | 
    Black | 
    White | 
    Result | 
  
  
    | [1998-12-21] | 
    6th Korean Baedalwang, title match #5 | 
    Yoo Changhyuk   | 
    Lee Changho   | 
    B+7.5 | 
  
  
    | [1998-12-17] | 
    24th Japanese Tengen, title match #5 | 
    Kudo Norio   | 
    Kobayashi Koichi   | 
    W+11.5 | 
  
  
    | [1998-12-11] | 
    6th Korean Baedalwang, title match #4 | 
    Lee Changho   | 
    Yoo Changhyuk   | 
    B+R | 
  
  
    | [1998-12-10] | 
    24th Japanese Tengen, title match #4 | 
    Kudo Norio   | 
    Kobayashi Koichi   | 
    B+6.5 | 
  
  
    | [1998-12-05] | 
    6th Korean Baedalwang, title match #3 | 
    Yoo Changhyuk   | 
    Lee Changho   | 
    B+R | 
  
  
    | [1998-12-03] | 
    24th Japanese Tengen, title match #3 | 
    Kobayashi Koichi   | 
    Kudo Norio   | 
    B+R | 
  
  
    | [1998-12-03] | 
    46th Japanese Oza, title match #3 | 
    O Rissei   | 
    Yamada Kimio   | 
    B+R | 
  
  
    | [1998-11-26] | 
    3rd Samsung Cup, final 1 | 
    Ma Xiaochun   | 
    Lee Changho   | 
    B+R | 
  
  
    | [1998-11-26] | 
    42nd Kansai-Kiin 1st Place, final 3 | 
    Hashimoto Shoji   | 
    Imamura Toshiya   | 
    W+3.5 | 
  
  
    | [1998-11-23] | 
    6th Korean Baedalwang, title match #2 | 
    Lee Changho   | 
    Yoo Changhyuk   | 
    B+R | 
  
  
    | [1998-11-20] | 
    11th Chinese Mingren, title match #5 | 
    Ma Xiaochun   | 
    Liu Xiaoguang   | 
    B+R | 
  
  
    | [1998-11-19] | 
    11th Chinese Mingren, title match #4 | 
    Ma Xiaochun   | 
    Liu Xiaoguang   | 
    B+7.5 | 
  
  
    | [1998-11-18] | 
    39th Japanese Okan, title match | 
    Yamashiro Hiroshi   | 
    Nakano Hironari   | 
    W+R | 
  
  
    | [1998-11-18] | 
    5th Bohae Cup, final 3 | 
    Zhang Xuan   | 
    Huang Yan   | 
    B+4.5 | 
  
  
    | [1998-11-17] | 
    11th Chinese Mingren, title match #3 | 
    Liu Xiaoguang   | 
    Ma Xiaochun   | 
    B+1.5 | 
  
  
    | [1998-11-17] | 
    5th Bohae Cup, final 2 | 
    Huang Yan   | 
    Zhang Xuan   | 
    W+R | 
  
  
    | [1998-11-17] | 
    42nd Korean Kuksu, title match #2 | 
    Cho Hunhyun   | 
    Lee Changho   | 
    B+R | 
  
  
    | [1998-11-16] | 
    46th Japanese Oza, title match #2 | 
    Yamada Kimio   | 
    O Rissei   | 
    W+R | 
  
  
    | [1998-11-16] | 
    5th Bohae Cup, final 1 | 
    Zhang Xuan   | 
    Huang Yan   | 
    W+1.5 | 
  
  
    | [1998-11-15] | 
    11th Chinese Mingren, title match #2 | 
    Ma Xiaochun   | 
    Liu Xiaoguang   | 
    B+3.5 | 
  
  
    | [1998-11-12] | 
    24th Japanese Tengen, title match #3 | 
    Kudo Norio   | 
    Kobayashi Koichi   | 
    W+R | 
  
  
    | [1998-11-12] | 
    42nd Kansai-Kiin 1st Place, final 2 | 
    Hashimoto Shoji   | 
    Imamura Toshiya   | 
    W+3.5 | 
  
  
    | [1998-11-11] | 
    6th Korean Baedalwang, title match #1 | 
    Yoo Changhyuk   | 
    Lee Changho   | 
    B+R | 
  
  
    | [1998-11-11] | 
    23rd Japanese Meijin, title match #7 | 
    Cho Chikun   | 
    O Rissei   | 
    B+1.5 | 
  
  
    | [1998-11-05] | 
    8th Baosheng Cable Cup, final | 
    Chen Linxin   | 
    Liu Xiaoguang   | 
    W+R | 
  
  
    | [1998-11-05] | 
    24th Japanese Tengen, title match #1 | 
    Kobayashi Koichi   | 
    Kudo Norio   | 
    W+1.5 | 
  
  
    | [1998-11-05] | 
    42nd Kansai-Kiin 1st Place, final 1 | 
    Imamura Toshiya   | 
    Hashimoto Shoji   | 
    W+0.5 | 
  
  
    | [1998-11-04] | 
    23rd Japanese Meijin, title match #6 | 
    Cho Chikun   | 
    O Rissei   | 
    B+3.5 | 
  
  
    | [1998-10-29] | 
    17th Japanese Female Honinbo, title match #3 | 
    Chinen Kaori   | 
    Kato Tomoko   | 
    B+4.5 | 
  
  
    | [1998-10-29] | 
    46th Japanese Oza, title match #1 | 
    O Rissei   | 
    Yamada Kimio   | 
    B+4.5 | 
  
  
    | [1998-10-23] | 
    3rd Korean Chunwon, final 4 | 
    Choi Myeonghun   | 
    Lee Changho   | 
    W+R | 
  
  
    | [1998-10-21] | 
    23rd Japanese Meijin, title match #5 | 
    O Rissei   | 
    Cho Chikun   | 
    B+3.5 | 
  
  
    | [1998-10-21] | 
    3rd Korean Chunwon, final 3 | 
    Lee Changho   | 
    Choi Myeonghun   | 
    W+R | 
  
  
    | [1998-10-18] | 
    31st Japanese Hayago Championship, final | 
    Kataoka Satoshi   | 
    Kato Masao   | 
    B+R | 
  
  
    | [1998-10-17] | 
    42nd Korean Kuksu, title match #1 | 
    Lee Changho   | 
    Cho Hunhyun   | 
    W+1.5 | 
  
  
    | [1998-10-14] | 
    23rd Japanese Meijin, title match #4 | 
    Cho Chikun   | 
    O Rissei   | 
    Void | 
  
  
    | [1998-10-14] | 
    11th Chinese Mingren, title match #1 | 
    Liu Xiaoguang   | 
    Ma Xiaochun   | 
    B+R | 
  
  
    | [1998-10-09] | 
    17th Japanese Female Honinbo, title match #2 | 
    Kato Tomoko   | 
    Chinen Kaori   | 
    W+4.5 | 
  
  
    | [1998-10-05] | 
    23rd Japanese Shinjin O, final 3 | 
    Takao Shinji   | 
    Yamashita Keigo   | 
    W+R | 
  
  
    | [1998-10-01] | 
    17th Japanese Female Honinbo, title match #1 | 
    Chinen Kaori   | 
    Kato Tomoko   | 
    B+6.5 | 
  
  
    | [1998-09-30] | 
    23rd Japanese Meijin, title match #3 | 
    O Rissei   | 
    Cho Chikun   | 
    W+R | 
  
  
    | [1998-09-29] | 
    5th Korean Female Kuksu, final 3 | 
    Yun Yeongseon   | 
    Huang Yan   | 
    B+1.5 | 
  
  
    | [1998-09-27] | 
    3rd Korean Chunwon, final 2 | 
    Choi Myeonghun   | 
    Lee Changho   | 
    W+1.5 | 
  
  
    | [1998-09-26] | 
    5th ACOM Cup All-Japan Quickplay Tournament, final | 
    Cho Chikun   | 
    Kobayashi Satoru   | 
    W+R | 
  
  
    | [1998-09-25] | 
    5th Korean Female Kuksu, final 2 | 
    Huang Yan   | 
    Yun Yeongseon   | 
    W+3.5 | 
  
  
    | [1998-09-23] | 
    23rd Japanese Meijin, title match #2 | 
    Cho Chikun   | 
    O Rissei   | 
    B+R | 
  
  
    | [1998-09-22] | 
    29th Korean Myeongin, title match #4 | 
    Cho Hunhyun   | 
    Lee Changho   | 
    W+0.5 | 
  
  
    | [1998-09-21] | 
    23rd Japanese Shinjin O, final 2 | 
    Takao Shinji   | 
    Yamashita Keigo   | 
    B+5.5 | 
  
  
    | [1998-09-21] | 
    5th Korean Female Kuksu, final 1 | 
    Yun Yeongseon   | 
    Huang Yan   | 
    W+6.5 | 
  
  
    | [1998-09-16] | 
    29th Korean Myeongin, title match #3 | 
    Lee Changho   | 
    Cho Hunhyun   | 
    B+5.5 | 
  
  
    | [1998-09-14] | 
    23rd Japanese Shinjin O, final 1 | 
    Yamashita Keigo   | 
    Takao Shinji   | 
    B+1.5 | 
  
  
    | [1998-09-12] | 
    3rd Korean Chunwon, final 1 | 
    Lee Changho   | 
    Choi Myeonghun   | 
    B+R | 
  
  
    | [1998-09-11] | 
    33rd Korean Paewang, title match #5 | 
    Lee Seongjae   | 
    Cho Hunhyun   | 
    W+R | 
  
  
    | [1998-09-09] | 
    23rd Japanese Meijin, title match #1 | 
    O Rissei   | 
    Cho Chikun   | 
    B+R | 
  
  
    | [1998-09-06] | 
    7th Japanese Ryusei, final | 
    Cho Chikun   | 
    Kato Masao   | 
    W+R | 
  
  
    | [1998-08-27] | 
    33rd Korean Paewang, title match #4 | 
    Lee Seongjae   | 
    Cho Hunhyun   | 
    W+R | 
  
  
    | [1998-08-22] | 
    29th Korean Myeongin, title match #2 | 
    Cho Hunhyun   | 
    Lee Changho   | 
    B+R | 
  
  
    | [1998-08-21] | 
    20th Japanese Female Kakusei, final | 
    Kusunoki Teruko   | 
    Yoshida Mika   | 
    W+5.5 | 
  
  
    | [1998-08-17] | 
    33rd Korean Paewang, title match #3 | 
    Cho Hunhyun   | 
    Lee Seongjae   | 
    B+4.5 | 
  
  
    | [1998-08-15] | 
    10th Asian TV Cup, final | 
    Yoda Norimoto   | 
    Ma Xiaochun   | 
    B+7.5 | 
  
  
    | [1998-08-07] | 
    29th Korean Myeongin, title match #1 | 
    Lee Changho   | 
    Cho Hunhyun   | 
    B+2.5 | 
  
  
    | [1998-08-05] | 
    32nd Korean Wangwi, title match #4 | 
    Lee Changho   | 
    Cho Hunhyun   | 
    B+R | 
  
  
    | [1998-08-01] | 
    11th Fujitsu Cup, final | 
    Chang Hao   | 
    Lee Changho   | 
    W+1.5 | 
  
  
    | [1998-07-28] | 
    23rd Japanese Gosei, title match #3 | 
    Yoda Norimoto   | 
    Sonoda Yuichi   | 
    B+R | 
  
  
    | [1998-07-26] | 
    32nd Korean Wangwi, title match #3 | 
    Cho Hunhyun   | 
    Lee Changho   | 
    B+R | 
  
  
    | [1998-07-17] | 
    23rd Japanese Gosei, title match #2 | 
    Sonoda Yuichi   | 
    Yoda Norimoto   | 
    W+2.5 | 
  
  
    | [1998-07-15] | 
    33rd Korean Paewang, title match #2 | 
    Lee Seongjae   | 
    Cho Hunhyun   | 
    B+0.5 | 
  
  
    | [1998-07-13] | 
    53rd Japanese Honinbo, title match #6 | 
    O Rissei   | 
    Cho Chikun   | 
    W+R | 
  
  
    | [1998-07-10] | 
    32nd Korean Wangwi, title match #2 | 
    Lee Changho   | 
    Cho Hunhyun   | 
    B+R | 
  
  
    | [1998-07-09] | 
    23rd Japanese Gosei, title match #1 | 
    Yoda Norimoto   | 
    Sonoda Yuichi   | 
    B+R | 
  
  
    | [1998-07-07] | 
    33rd Korean Paewang, title match #1 | 
    Cho Hunhyun   | 
    Lee Seongjae   | 
    W+R | 
  
  
    | [1998-07-01] | 
    32nd Korean Wangwi, title match #1 | 
    Cho Hunhyun   | 
    Lee Changho   | 
    W+4.5 | 
  
  
    | [1998-06-29] | 
    53rd Japanese Honinbo, title match #5 | 
    Cho Chikun   | 
    O Rissei   | 
    W+R | 
  
  
    | [1998-06-22] | 
    53rd Japanese Honinbo, title match #4 | 
    O Rissei   | 
    Cho Chikun   | 
    W+R | 
  
  
    | [1998-06-11] | 
    53rd Japanese Honinbo, title match #3 | 
    Cho Chikun   | 
    O Rissei   | 
    W+R | 
  
  
    | [1998-06-01] | 
    53rd Japanese Honinbo, title match #2 | 
    O Rissei   | 
    Cho Chikun   | 
    W+R | 
  
  
    | [1998-05-22] | 
    10th Chinese CCTV Cup, final | 
    Cao Dayuan   | 
    Ma Xiaochun   | 
    B+3.5 | 
  
  
    | [1998-05-21] | 
    53rd Japanese Honinbo, title match #1 | 
    Cho Chikun   | 
    O Rissei   | 
    B+R | 
  
  
    | [1998-05-21] | 
    16th Korean KBS Cup, final 2 | 
    Lee Changho   | 
    Cho Hunhyun   | 
    W+2.5 | 
  
  
    | [1998-05-20] | 
    16th Korean KBS Cup, final 1 | 
    Cho Hunhyun   | 
    Lee Changho   | 
    B+R | 
  
  
    | [1998-05-13] | 
    9th Tongyang Securities Cup, final 4 | 
    Yoo Changhyuk   | 
    Lee Changho   | 
    W+0.5 | 
  
  
    | [1998-05-11] | 
    9th Tongyang Securities Cup, final 3 | 
    Lee Changho   | 
    Yoo Changhyuk   | 
    B+R | 
  
  
    | [1998-04-23] | 
    36th Japanese Judan, title match #5 | 
    Kato Masao   | 
    Hikosaka Naoto   | 
    W+1.5 | 
  
  
    | [1998-04-22] | 
    9th Tongyang Securities Cup, final 2 | 
    Yoo Changhyuk   | 
    Lee Changho   | 
    B+0.5 | 
  
  
    | [1998-04-20] | 
    9th Tongyang Securities Cup, final 1 | 
    Lee Changho   | 
    Yoo Changhyuk   | 
    B+R | 
  
  
    | [1998-04-16] | 
    36th Japanese Judan, title match #4 | 
    Hikosaka Naoto   | 
    Kato Masao   | 
    W+R | 
  
  
    | [1998-04-08] | 
    36th Japanese Judan, title match #3 | 
    Kato Masao   | 
    Hikosaka Naoto   | 
    W+4.5 | 
  
  
    | [1998-04-08] | 
    4th Bohae Cup, final 2 | 
    Feng Yun   | 
    Rui Naiwei   | 
    W+R | 
  
  
    | [1998-04-06] | 
    4th Bohae Cup, final 1 | 
    Rui Naiwei   | 
    Feng Yun   | 
    B+R | 
  
  
    | [1998-03-25] | 
    1st Chinese Lebaishi Cup, title match #3 | 
    Wang Lei (b)   | 
    Chang Hao   | 
    W+0.5 | 
  
  
    | [1998-03-24] | 
    36th Japanese Judan, title match #2 | 
    Hikosaka Naoto   | 
    Kato Masao   | 
    B+3.5 | 
  
  
    | [1998-03-22] | 
    28th Japanese Shinei Tournament, final | 
    Yamada Noriyoshi   | 
    Yamada Kimio   | 
    W+4.5 | 
  
  
    | [1998-03-22] | 
    2nd LG Cup, final 5 | 
    O Rissei   | 
    Yoo Changhyuk   | 
    B+8.5 | 
  
  
    | [1998-03-20] | 
    2nd LG Cup, final 4 | 
    O Rissei   | 
    Yoo Changhyuk   | 
    B+R | 
  
  
    | [1998-03-18] | 
    2nd LG Cup, final 3 | 
    Yoo Changhyuk   | 
    O Rissei   | 
    B+R | 
  
  
    | [1998-03-15] | 
    45th Japanese NHK Cup, final | 
    Honda Kunihisa   | 
    Yoda Norimoto   | 
    W+11.5 | 
  
  
    | [1998-03-14] | 
    4th Japanese JT Cup, final | 
    Cho Chikun   | 
    Kato Atsushi   | 
    W+R | 
  
  
    | [1998-03-13] | 
    1st Japanese Female Kisei, final 2 | 
    Kobayashi Izumi   | 
    Kobayashi Chizu   | 
    B+0.5 | 
  
  
    | [1998-03-11] | 
    10th Japanese Female Meijin, title match #2 | 
    Ogawa Tomoko   | 
    Nishida Terumi   | 
    W+R | 
  
  
    | [1998-03-11] | 
    22nd Japanese Kisei, title match #6 | 
    Yoda Norimoto   | 
    Cho Chikun   | 
    W+4.5 | 
  
  
    | [1998-03-10] | 
    12th Chinese Tianyuan, title match #5 | 
    Wang Lei (b)   | 
    Chang Hao   | 
    W+R | 
  
  
    | [1998-03-09] | 
    12th Chinese Tianyuan, title match #4 | 
    Wang Lei (b)   | 
    Chang Hao   | 
    W+R | 
  
  
    | [1998-03-07] | 
    12th Chinese Tianyuan, title match #3 | 
    Chang Hao   | 
    Wang Lei (b)   | 
    B+R | 
  
  
    | [1998-03-07] | 
    13th Japanese NEC Shunei, final | 
    Mizokami Tomochika   | 
    Nakamura Shinya   | 
    W+3.5 | 
  
  
    | [1998-03-07] | 
    17th Japanese NEC Cup, final | 
    Cho Chikun   | 
    Yoda Norimoto   | 
    W+4.5 | 
  
  
    | [1998-03-06] | 
    1st Japanese Female Kisei, final 1 | 
    Kobayashi Chizu   | 
    Kobayashi Izumi   | 
    W+R | 
  
  
    | [1998-03-05] | 
    36th Japanese Judan, title match #1 | 
    Kato Masao   | 
    Hikosaka Naoto   | 
    B+4.5 | 
  
  
    | [1998-03-05] | 
    12th Chinese Tianyuan, title match #2 | 
    Wang Lei (b)   | 
    Chang Hao   | 
    B+1.5 | 
  
  
    | [1998-03-04] | 
    10th Japanese Female Meijin, title match #1 | 
    Nishida Terumi   | 
    Ogawa Tomoko   | 
    B+0.5 | 
  
  
    | [1998-03-03] | 
    12th Chinese Tianyuan, title match #1 | 
    Chang Hao   | 
    Wang Lei (b)   | 
    W+R | 
  
  
    | [1998-03-02] | 
    20th Japanese Kakusei, final | 
    Rin Kaiho   | 
    Kato Masao   | 
    B+R | 
  
  
    | [1998-02-26] | 
    2nd LG Cup, final 2 | 
    O Rissei   | 
    Yoo Changhyuk   | 
    B+R | 
  
  
    | [1998-02-25] | 
    22nd Japanese Kisei, title match #5 | 
    Cho Chikun   | 
    Yoda Norimoto   | 
    W+R | 
  
  
    | [1998-02-24] | 
    2nd LG Cup, final 1 | 
    Yoo Changhyuk   | 
    O Rissei   | 
    B+7.5 | 
  
  
    | [1998-02-21] | 
    1st Chinese Lebaishi Cup, title match #2 | 
    Chang Hao   | 
    Wang Lei (b)   | 
    B+R | 
  
  
    | [1998-02-19] | 
    1st Chinese Lebaishi Cup, title match #1 | 
    Wang Lei (b)   | 
    Chang Hao   | 
    W+0.5 | 
  
  
    | [1998-02-18] | 
    22nd Japanese Kisei, title match #4 | 
    Yoda Norimoto   | 
    Cho Chikun   | 
    B+R | 
  
  
    | [1998-02-15] | 
    5th Chinese Xinren Wang, final 2 | 
    Zou Junjie   | 
    Luo Xihe   | 
    B+5.5 | 
  
  
    | [1998-02-14] | 
    5th Chinese Xinren Wang, final 1 | 
    Luo Xihe   | 
    Zou Junjie   | 
    W+2.5 | 
  
  
    | [1998-02-09] | 
    9th Korean Kiseong, title match #5 | 
    Cho Hunhyun   | 
    Lee Changho   | 
    W+0.5 | 
  
  
    | [1998-02-04] | 
    22nd Japanese Kisei, title match #3 | 
    Cho Chikun   | 
    Yoda Norimoto   | 
    B+R | 
  
  
    | [1998-02-02] | 
    9th Korean Kiseong, title match #4 | 
    Cho Hunhyun   | 
    Lee Changho   | 
    W+1.5 | 
  
  
    | [1998-01-28] | 
    22nd Japanese Kisei, title match #2 | 
    Yoda Norimoto   | 
    Cho Chikun   | 
    W+3.5 | 
  
  
    | [1998-01-19] | 
    15th Korean Taewang, title match #4 | 
    Cho Hunhyun   | 
    Lee Changho   | 
    W+2.5 | 
  
  
    | [1998-01-17] | 
    1st Junying Cup, final | 
    Ye Gui   | 
    Luo Xihe   | 
    B+3.5 | 
  
  
    | [1998-01-17] | 
    3rd Chinese NEC Cup, final | 
    Cao Dayuan   | 
    Chang Hao   | 
    W+0.5 | 
  
  
    | [1998-01-16] | 
    9th Korean Kiseong, title match #3 | 
    Lee Changho   | 
    Cho Hunhyun   | 
    B+R | 
  
  
    | [1998-01-14] | 
    22nd Japanese Kisei, title match #1 | 
    Cho Chikun   | 
    Yoda Norimoto   | 
    B+R | 
  
  
    | [1998-01-09] | 
    9th Korean Kiseong, title match #2 | 
    Cho Hunhyun   | 
    Lee Changho   | 
    B+R |