Koyama Akihiro (小山晃弘)
Place: Tokyo, Japan
Rating: 1964.49, Std: 259.96, Rank: -
First game: 2017-04-09, Last game: 2018-04-01
Top rating: 1969.45 (2017-10-01)
Games: 31, Wins: 10, Draws: 3, Losses: 18
Gy1: 0, Gy2: 0, Gy5: 0
| 35 Kanto Shineisen Tournament | ||||
|---|---|---|---|---|
| Date | 2018-04-01 | Rating | 1964.49 | |
| Round | Color | Result | Opponent | |
| 1 | White | Draw | 2090.82 | |
| 2 | White | Win | 2207.04 | |
| 3 | White | Loss | 2149.19 | |
| 4 | White | Draw | 1549.02 | |
| 5 | White | Loss | 2267.28 | |
| 21 Mikami Cup | ||||
| Date | 2018-01-21 | Rating | 1963.29 | |
| Round | Color | Result | Opponent | |
| A2 | Black | Loss | 2183.49 | |
| A3 | Black | Loss | 2263.40 | |
| A5 | White | Loss | 2183.49 | |
| A6 | White | Loss | 2263.40 | |
| 18 Kanto Renju Emperor Tournament 1st round | ||||
| Date | 2017-11-01 | Rating | 1968.58 | |
| Round | Color | Result | Opponent | |
| 1 | White | Loss | 2600.54 | |
| 2 | White | Loss | 2131.37 | |
| 3 | White | Win | 2148.02 | |
| 4 | White | Win | 1547.35 | |
| 57 Suiseisen Tournament final round | ||||
| Date | 2017-11-01 | Rating | 1968.58 | |
| Round | Color | Result | Opponent | |
| 1 | White | Draw | 2151.49 | |
| 2 | White | Loss | 2262.73 | |
| 3 | White | Loss | 2148.02 | |
| 57 Suiseisen Tournament 1st round | ||||
| Date | 2017-10-01 | Rating | 1969.45 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | 1929.86 | |
| 2 | White | Loss | 2146.53 | |
| 3 | Black | Win | 2331.24 | |
| 4 | White | Win | 1708.59 | |
| 34 Kanto Championship | ||||
| Date | 2017-07-16 | Rating | 1960.91 | |
| Round | Color | Result | Opponent | |
| 1 | White | Loss | 2397.96 | |
| 2 | White | Win | 1730.16 | |
| 3 | White | Win | 1547.84 | |
| 4 | White | Loss | 2270.91 | |
| 5 | White | Loss | 2383.35 | |
| 6 | White | Win | 1730.16 | |
| 34 Kanto Shineisen Tournament | ||||
| Date | 2017-04-09 | Rating | 1947.83 | |
| Round | Color | Result | Opponent | |
| 1 | White | Loss | 2264.31 | |
| 2 | Black | Win | 1553.15 | |
| 3 | White | Loss | 1939.77 | |
| 4 | White | Loss | 2153.70 | |
| 5 | White | Loss | 2117.36 | |