Oka Mitsuo
Oka Mitsuo (岡光雄) has a rating of 1445.
Retired. The rating shown is the rating at retirement.
Oka Mitsuo岡光雄Nihon Ki-in
Rating1445
Rank—
1-year change—
Peak rating—
Last 10LossLossLossWinLossWinLossLossLossLoss4-8
- 1991 record
- 0-1
- Record since 1927
- 4-8
- Win rate
- .333
Rating at retirement (not included in the rating list)
The rating is calculated from published game results. It does not include any adjustment for playing Black.
Professional ratingsFind a player
Recent games
| Date | Opponent and tournament | Result | Change |
|---|---|---|---|
| November 20, 1991 | Hane NaokiHoninbo Preliminary as Black | Loss | ↓13 |
| June 14, 1984 | Hane YasumasaMeijin 2nd Preliminary as White | Loss | ↓4 |
| July 9, 1975 | Sato MasaharuHoninbo 2nd Preliminary as Black | Loss | ↓6 |
| July 4, 1974 | Yoshida YoichiHoninbo 2nd Preliminary as Black | Loss | ↓11 |
| May 16, 1974 | Sometani KazuoHoninbo 2nd Preliminary as White | Win | ↑21 |
| January 24, 1974 | Tsuchida MasamitsuFormer Meijin 2nd Preliminary as White | Loss | ↓13 |
| January 15, 1974 | Hirano MasaakiFormer Meijin 2nd Preliminary as White | Win | ↑12 |
| April 19, 1973 | Morishima KaoruHoninbo 2nd Preliminary as Black | Loss | ↓15 |
| February 1, 1973 | Izumo EijiFormer Meijin 2nd Preliminary as Black | Loss | ↓26 |
| May 11, 1972 | Ito MakotoHoninbo 2nd Preliminary as White | Loss | ↓21 |
| April 13, 1972 | Izutani MinoruHoninbo 2nd Preliminary as White | Win | ↑6 |
| March 9, 1972 | Akedo KazumiPro Best Ten 2nd Preliminary as Black | Win | ↑16 |
Head-to-head
| Opponent | Total | As Black | As White |
|---|---|---|---|
| Morishima Kaoru | 0-1.000 | 0-1 | 0-0 |
| Hirano Masaaki | 1-01.000 | 0-0 | 1-0 |
| Hane Naoki | 0-1.000 | 0-1 | 0-0 |
| Izutani Minoru | 1-01.000 | 0-0 | 1-0 |
| Tsuchida Masamitsu | 0-1.000 | 0-0 | 0-1 |
| Hane Yasumasa | 0-1.000 | 0-0 | 0-1 |
| Yoshida Yoichi | 0-1.000 | 0-1 | 0-0 |
| Akedo Kazumi | 1-01.000 | 1-0 | 0-0 |
| Sato Masaharu | 0-1.000 | 0-1 | 0-0 |
| Ito Makoto | 0-1.000 | 0-0 | 0-1 |
Record by year
Counted by calendar year, January to December (default wins and losses are included; jigo and no-result games are not). Only games from 1927 onward are counted, so these totals do not match the career records published by the two Ki-in.
| Year | Record | Win rate |
|---|---|---|
| 1991 | 0-1 | .000 |
| 1984 | 0-1 | .000 |
| 1975 | 0-1 | .000 |
| 1974 | 2-2 | .500 |
| 1973 | 0-2 | .000 |
| 1972 | 2-1 | .667 |
| Total | 4-8 | .333 |
Calculated from games played between 1927 and 2026 (as of September 17, 2026).