Koyama Mitsuru
Koyama Mitsuru (Koyama Mitsuru) has a rating of 1484.
Koyama MitsuruKoyama Mitsuru
Rating1484
Rank—
1-year change—
Peak rating—
Last 10LossLossWinWinWinLossWinLossLossLoss0-1
- 2002 record
- 1-3
- Record since 1927
- 0-1
- Win rate
- .000
Not listed in the rating list: we have not confirmed whether this player is active
The rating is calculated from published game results. It does not include any adjustment for playing Black.
Professional ratingsFind a player
Ratings in other pools
Ratings for general play and for women's tournaments are calculated independently and do not affect each other.
- Women's tournaments: 1557 Not listed in the rating list: we have not confirmed whether this player is active
Recent games
| Date | Opponent and tournament | Result | Change |
|---|---|---|---|
| October 30, 2002 | Catalin TaranuKisei Preliminary as White | Loss | ↓16 |
| September 25, 2002 | Okada YumikoWomen's Strongest Player Round 3 as White | Loss | ↓15 |
| September 4, 2002 | Chinen KaoriWomen's Honinbo Challenger Final as Black | Loss | ↓9 |
| July 3, 2002 | Mannami KanaWomen's Strongest Player Round 2 as White | Win | ↑14 |
| December 21, 2001 | Ogawa TomokoWomen's Kisei Challenger Final as White | Loss | ↓10 |
| December 5, 2001 | Tsukuda AkikoWomen's Kisei Round 3 as White | Win | ↑18 |
| November 9, 2001 | Kobayashi ChizuWomen's Kisei Round 2 as White | Win | ↑18 |
| September 22, 2001 | Inori YokoWomen's Kisei Round 1 as Black | Win | ↑21 |
| August 16, 2001 | Aoki KikuyoWomen's Strongest Player Round 2 as White | Loss | ↓7 |
| August 1, 2001 | Tsukuda AkikoWomen's Meijin Losers' Section Round 1 as Black | Loss | ↓14 |
| June 20, 2001 | Chinen KaoriWomen's Meijin Winners' Section Round 1 as White | Loss | ↓9 |
| September 6, 2000 | Okada YumikoWomen's Meijin Losers' Section Round 2 as Black | Loss | ↓18 |
| August 9, 2000 | Kato TomokoWomen's Meijin Winners' Section Round 2 as White | Loss | ↓12 |
| July 12, 2000 | Kim HyunjongWomen's Meijin Winners' Section Round 1 as White | Win | ↑12 |
| December 20, 1999 | Kobayashi IzumiWomen's Meijin Losers' Section Final as White | Loss | ↓12 |
| December 8, 1999 | Kato TomokoWomen's Meijin Losers' Section Round 4 as Black | Win | ↑21 |
| December 3, 1999 | Chinen KaoriWomen's Kisei Round 3 as Black | Loss | ↓8 |
| November 5, 1999 | Hosaka MayuWomen's Kisei Round 2 as Black | Win | ↑15 |
| November 3, 1999 | Komatsu HidekoWomen's Meijin Winners' Section Round 4 as Black | Loss | ↓17 |
| September 17, 1999 | Okada YumikoWomen's Kisei Round 1 as Black | Win | ↑14 |
Head-to-head
| Opponent | Total | As Black | As White |
|---|---|---|---|
| Chinen Kaori | 1-3.250 | 1-2 | 0-1 |
| Okada Yumiko | 1-2.333 | 1-1 | 0-1 |
| Tsukuda Akiko | 1-1.500 | 0-1 | 1-0 |
| Kato Tomoko | 1-1.500 | 1-0 | 0-1 |
| Aoki Kikuyo | 0-1.000 | 0-0 | 0-1 |
| Mannami Kana | 1-01.000 | 0-0 | 1-0 |
| Kim Hyunjong | 1-01.000 | 0-0 | 1-0 |
| Ogawa Tomoko | 0-1.000 | 0-0 | 0-1 |
| Hosaka Mayu | 1-01.000 | 1-0 | 0-0 |
| Inori Yoko | 1-01.000 | 1-0 | 0-0 |
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 |
|---|---|---|
| 2002 | 1-3 | .250 |
| 2001 | 3-4 | .429 |
| 2000 | 1-2 | .333 |
| 1999 | 6-3 | .667 |
| Total | 0-1 | .000 |
Calculated from games played between 1927 and 2026 (as of September 17, 2026).