| # |
Black player |
Rank |
White player |
Rank |
Result |
# moves |
Date |
Event |
Round |
| 1 | Ogata Masaki | 9p | Yamashiro Hiroshi | 9p | W+1.5 | 246 | 1994-11-10 | Okan Sen, 35th | Final | | 2 | Yamashiro Hiroshi | 9p | Ogata Masaki | 9p | B+4.5 | 241 | 2015-04-16 | Igo Masters Cup, 5th | 1st round | | 3 | Yamashiro Hiroshi | 9p | Ogata Masaki | 9p | B+R | 248 | 2017-01-30 | | | | 4 | Yamashita Keigo | 7p | Ogata Masaki | 9p | B+R | 155 | 2001-12-20 | Gosei, 27th | 1/16 Final - 13 | | 5 | Ogata Masaki | 9p | Yamashita Keigo | 9p | W+R | 136 | 2005-04-14 | Meijin, 30th | League, game 18 | | 6 | Yoda Norimoto | 7p | Ogata Masaki | 7p | B+3 | 249 | 1989-07-13 | Shinjin-O, 14th | Semifinal - 2 | | 7 | Ogata Masaki | 8p | Yoda Norimoto | 8p | B+0.5 | 242 | 1993-01-21 | Judan, 31st | Losers' Section, Final | | 8 | Yoda Norimoto | 9p | Ogata Masaki | 9p | W+0.5 | 256 | 1998-05-14 | Judan, 37th | 1-03 | | 9 | Yoda Norimoto | 9p | Ogata Masaki | 9p | B+3.5 | 221 | 2005-01-06 | Meijin, 30th | League, game 05 | | 10 | Ogata Masaki | 9p | Yoda Norimoto | 9p | W+3.5 | 294 | 2006-12-28 | Tengen, 33rd | | | 11 | Yoda Norimoto | 9p | Ogata Masaki | 9p | W+R | 268 | 2009-01-25 | NHK Cup, 56th | 3 | | 12 | Yoshioka Kaoru | 5p | Ogata Masaki | 6p | W+R | 174 | 1988-06-16 | Oteai, 1988 | | | 13 | Yu Furuya | 8p | Ogata Masaki | 9p | W+R | 184 | 2011-10-09 | NHK Cup, 59th | 2 | | 14 | Yukawa Mitsuhisa | 9p | Ogata Masaki | 9p | W+R | 162 | 2011-11-24 | Judan, 50th | 3 | | 15 | Ogata Masaki | 9p | Yuki Satoshi | 8p | B+2.5 | 217 | 1995-03-02 | Tengen, 21st | 1-08 | | 16 | Ogata Masaki | 9p | Yuki Satoshi | 8p | B+R | 145 | 1995-06-29 | Judan, 34th | Losers' Section, 1-3 | | 17 | Ogata Masaki | 9p | Yuki Satoshi | 9p | W+R | 204 | 2003-03-20 | Oza, 51st | 1-01 | | 18 | Ogata Masaki | 9p | Yuki Satoshi | Ryusei | W+0.5 | 275 | 2006-05-08 | Ryusei Cup, 15th | champion's decision tournament | | 19 | Ogata Masaki | 9p | Yuki Satoshi | 9p | W+R | 110 | 2007-03-15 | Ryusei Cup, 16th | Block B | | 20 | Yuki Satoshi | 9p | Ogata Masaki | 9p | B+R | 143 | 2008-01-17 | Tengen, 34th | 1 | | 21 | Yuki Satoshi | NHK Cup | Ogata Masaki | 9p | B+R | 159 | 2009-09-21 | NHK Cup, 57th | 2 | | 22 | Yuki Satoshi | 9p | Ogata Masaki | 9p | W+1.5 | 290 | 2010-07-08 | Meijin, 35th | League | | 23 | Ogata Masaki | 9p | Yuki Satoshi | 9p | W+R | 264 | 2011-01-31 | Ryusei, 20th | block-F | | 24 | Yuki Satoshi | 9p | Ogata Masaki | 9p | B+R | 151 | 2012-09-06 | Meijin, 38th, last preliminary tournament | | | 25 | Ogata Masaki | 9p | Yuki Satoshi | 9p | B+R | 133 | 2015-05-07 | Agon Cup, 22nd, last preiminary tournament | Final | | 26 | Ogata Masaki | 9p | Yuki Satoshi | 9p | W+R | 148 | 2015-10-01 | Meijin, 41st, last preliminary tournament | |
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