Ooshina Seiichi (大科清市)
Place: Aomori, Japan
Rating: 2171.31, Std: 180.81, Rank: 468
First game: 2015-07-05, Last game: 2023-06-25
Top rating: 2171.31 (2023-06-25)
Games: 20, Wins: 11, Draws: 0, Losses: 9
Gy1: 0, Gy2: 3, Gy5: 6
| 37 Aomori Championship | ||||
|---|---|---|---|---|
| Date | 2023-06-25 | Rating | 2171.31 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Koseki Kenshou | 1584.14 |
| 2 | White | Win | Kawaai Hitoshi | 2007.76 |
| 3 | White | Win | Tanno Yoshitaka | 2071.77 |
| 38 Aomori Meijinsen Tournament | ||||
| Date | 2019-11-10 | Rating | 2072.23 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Koseki Kenshou | 1609.15 |
| 2 | Black | Loss | Miyamoto Syunju | 2295.84 |
| 3 | Black | Loss | Tanno Yoshitaka | 2128.98 |
| 36 Aomori Championship | ||||
| Date | 2019-06-30 | Rating | 2070.70 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Loss | Tanno Yoshitaka | 2131.92 |
| 2 | Black | Win | Koseki Kenshou | 1613.61 |
| 3 | Black | Win | Miyamoto Syunju | 2278.29 |
| 37 Aomori Meijinsen Tournament | ||||
| Date | 2018-11-11 | Rating | 2057.21 | |
| Round | Color | Result | Opponent | |
| 1 | White | Loss | Miyamoto Syunju | 2265.88 |
| 2 | Black | Loss | Tanno Yoshitaka | 2140.65 |
| 3 | Black | Win | Koseki Kenshou | 1624.86 |
| Aomori Meijinsen Tournament | ||||
| Date | 2017-11-05 | Rating | 2057.67 | |
| Round | Color | Result | Opponent | |
| 2 | White | Loss | Gakumazawa Hideaki | 2196.94 |
| 3 | White | Loss | Miyamoto Syunju | 2278.08 |
| 4 | White | Win | Tanno Yoshitaka | 2143.76 |
| 32nd Aomori Championship | ||||
| Date | 2015-07-05 | Rating | 2049.96 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Loss | Gakumazawa Hideaki | 2190.29 |
| 2 | Black | Win | Koseki Kenshou | 1691.19 |
| 3 | Black | Loss | Miyamoto Syunju | 2086.56 |
| 4 | White | Win | Miura Hitoshi | 1782.21 |
| 5 | White | Win | Kobayashi Koichi | 2282.75 |