| Nr. | Date | Event & Result | Mvs |
|---|---|---|---|
| 1 | 1972-00-00 | 10th Pro Best Ten, Preliminary (?, +) | ? |
| 2 | 1974-06-20 | 22nd Nihon Ki-in Championship, Round 2 (W, W+0.5) | 213 |
| 3 | 1975-04-03 | 1st Tengen, Round 1 (B, B+2.5) | 235 |
| 4 | 1981-05-21 | 20th Judan, Winners' Section, Round 1 (W, W+6.5) | 300 |
| 5 | 1984-04/08 | 40th Honinbo, Preliminaries (?, -) |
| 1999 | 2000 | 2001 |
| 2002 | 2003 | 2004 |
| 2005 | 2006 | 2007 |
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