Ooshina Seiichi (大科清市)
Place: Aomori, Japan
Rating: 2107.09, Std: 149.59, Rank: 514
First game: 2015-07-05, Last game: 2023-06-25
Top rating: 2107.09 (2023-06-25)
Games: 20, Wins: 11, Draws: 0, Losses: 9
Gy1: 3, Gy2: 3, Gy5: 9
| 37 Aomori Championship | ||||
|---|---|---|---|---|
| Date | 2023-06-25 | Rating | 2107.09 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Koseki Kenshou | 1576.30 |
| 2 | White | Win | Kawaai Hitoshi | 1991.82 |
| 3 | White | Win | Tanno Yoshitaka | 1997.97 |
| 38 Aomori Meijinsen Tournament | ||||
| Date | 2019-11-10 | Rating | 2035.10 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Koseki Kenshou | 1596.93 |
| 2 | Black | Loss | Miyamoto Syunju | 2242.83 |
| 3 | Black | Loss | Tanno Yoshitaka | 2074.22 |
| 36 Aomori Championship | ||||
| Date | 2019-06-30 | Rating | 2033.81 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Loss | Tanno Yoshitaka | 2079.62 |
| 2 | Black | Win | Koseki Kenshou | 1600.56 |
| 3 | Black | Win | Miyamoto Syunju | 2232.33 |
| 37 Aomori Meijinsen Tournament | ||||
| Date | 2018-11-11 | Rating | 2024.71 | |
| Round | Color | Result | Opponent | |
| 1 | White | Loss | Miyamoto Syunju | 2223.30 |
| 2 | Black | Loss | Tanno Yoshitaka | 2090.60 |
| 3 | Black | Win | Koseki Kenshou | 1609.65 |
| Aomori Meijinsen Tournament | ||||
| Date | 2017-11-05 | Rating | 2025.62 | |
| Round | Color | Result | Opponent | |
| 2 | White | Loss | Gakumazawa Hideaki | 2152.13 |
| 3 | White | Loss | Miyamoto Syunju | 2228.95 |
| 4 | White | Win | Tanno Yoshitaka | 2099.13 |
| 32nd Aomori Championship | ||||
| Date | 2015-07-05 | Rating | 2025.07 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Loss | Gakumazawa Hideaki | 2154.57 |
| 2 | Black | Win | Koseki Kenshou | 1665.21 |
| 3 | Black | Loss | Miyamoto Syunju | 2076.35 |
| 4 | White | Win | Miura Hitoshi | 1772.44 |
| 5 | White | Win | Kobayashi Koichi | 2248.77 |