Hoshikawa Nobuaki
Hoshikawa Nobuaki (星川信明) has a rating of 1395.
Retired. The rating shown is the rating at retirement.
Hoshikawa Nobuaki9 dan星川信明Kansai Ki-in
Rating1395
Rank—
1-year change—
Peak rating—
Last 10LossLossLossLossWinLossLossLossLossLoss4-15
- 2005 record
- 0-1
- Record since 1927
- 4-15
- Win rate
- .210
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 |
|---|---|---|---|
| July 14, 2005 | Sekiyama ToshimichiKisei Colors unknown | Loss | ↓12 |
| June 17, 2004 | Tamura ChiakiKisei Colors unknown | Loss | ↓12 |
| December 10, 2003 | Yamada NoriyoshiKansai Ki-in First Place Tournament Round 1 as White | Loss | ↓12 |
| September 4, 2003 | Sakai HideyukiKisei Colors unknown | Loss | ↓8 |
| April 18, 2002 | Yuki SatoshiKansai Ki-in First Place Tournament Round 2 as White | Loss | ↓3 |
| December 19, 2001 | Aragaki ShunKansai Ki-in First Place Tournament Round 1 as Black | Win | ↑20 |
| February 21, 1991 | Kanda EiKisei 8 dan Section as Black | Loss | ↓9 |
| March 2, 1989 | Honma AkioJudan 3rd Preliminary as White | Loss | ↓21 |
| September 10, 1987 | Yamashiro HiroshiMeijin 3rd Preliminary as Black | Loss | ↓3 |
| January 20, 1983 | Muraoka ShigeyukiKisei 7 dan Section as White | Loss | ↓16 |
| February 6, 1980 | Okabe HiroakiKisei 6 dan Section as Black | Win | ↑17 |
| November 22, 1979 | Hashimoto YujiroShinjin-O Round 1 as Black | Loss | ↓17 |
| October 4, 1979 | Ishii KunioMeijin 3rd Preliminary as Black | Loss | ↓7 |
| June 25, 1979 | Wang QunJapan-China Go Exchange Round 6 as White | Win | — |
| June 24, 1978 | Yang YilunJapan-China Go Exchange as White | Loss | — |
| March 15, 1978 | Nakamura HidehitoKisei 6 dan Section Final as White | Loss | ↓14 |
| February 8, 1978 | Okahashi HirotadaKisei 6 dan Section as White | Win | ↑16 |
| January 28, 1976 | Kamiya TetsuoKisei 5 dan Section as Black | Loss | ↓14 |
| November 20, 1975 | Kojima TakahoShinjin-O Round 1 as White | Loss | ↓10 |
Head-to-head
| Opponent | Total | As Black | As White |
|---|---|---|---|
| Hashimoto Yujiro | 0-1.000 | 0-1 | 0-0 |
| Kojima Takaho | 0-1.000 | 0-0 | 0-1 |
| Okabe Hiroaki | 1-01.000 | 1-0 | 0-0 |
| Muraoka Shigeyuki | 0-1.000 | 0-0 | 0-1 |
| Yamada Noriyoshi | 0-1.000 | 0-0 | 0-1 |
| Aragaki Shun | 1-01.000 | 1-0 | 0-0 |
| Sekiyama Toshimichi | 0-1.000 | 0-0 | 0-0 |
| Yamashiro Hiroshi | 0-1.000 | 0-1 | 0-0 |
| Sakai Hideyuki | 0-1.000 | 0-0 | 0-0 |
| Okahashi Hirotada | 1-01.000 | 0-0 | 1-0 |
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 |
|---|---|---|
| 2005 | 0-1 | .000 |
| 2004 | 0-1 | .000 |
| 2003 | 0-2 | .000 |
| 2002 | 0-1 | .000 |
| 2001 | 1-0 | 1.000 |
| 1991 | 0-1 | .000 |
| 1989 | 0-1 | .000 |
| 1987 | 0-1 | .000 |
| 1983 | 0-1 | .000 |
| 1980 | 1-0 | 1.000 |
| 1979 | 1-2 | .333 |
| 1978 | 1-2 | .333 |
| 1976 | 0-1 | .000 |
| 1975 | 0-1 | .000 |
| Total | 4-15 | .210 |
Calculated from games played between 1927 and 2026 (as of September 17, 2026).