Guo Haisen (郭海森)
Place: Hefei, China
Rating: 2228.50, Std: 189.92, Rank: 402
First game: 2008-12-14, Last game: 2020-10-18
Top rating: 2228.50 (2020-10-18)
Games: 50, Wins: 21, Draws: 3, Losses: 26
Gy1: 0, Gy2: 0, Gy5: 9
| Mind Master Games 2020 | ||||
|---|---|---|---|---|
| Date | 2020-10-18 | Rating | 2228.50 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Weng Yuan | 1912.91 |
| 2 | White | Win | Wang Yilin | 2101.09 |
| 3 | Black | Loss | Wang Yuxi | 2277.39 |
| 4 | Black | Loss | Wan Junhong | 2502.02 |
| 5 | White | Win | Yuan Pui Peng | 1920.61 |
| 6 | Black | Loss | Wu Zhiqin | 2505.33 |
| 7 | White | Win | Wu Xinyue | 2069.34 |
| 8 | Black | Win | Zhang Zhiyuan | 2249.96 |
| 9 | White | Loss | Yang Tingyu | 2538.21 |
| “SOPAI Cup” 1st World Renju Open | ||||
| Date | 2018-11-25 | Rating | 2189.12 | |
| Round | Color | Result | Opponent | |
| 1 | White | Loss | Liu Yang | 2605.12 |
| 2 | White | Loss | Ling Shijie | 2390.52 |
| 3 | White | Loss | Yu Yajun | 2315.47 |
| 4 | White | Loss | Huo Jiuxu | 2315.19 |
| 5 | White | Win | Song Yu | 1967.95 |
| 6 | White | Win | Tian Hanfa | 1880.67 |
| 7 | Black | Loss | Okabe Hiroshi | 2677.26 |
| 8 | White | Win | Guo Song | 2057.65 |
| 9 | White | Win | Tao Junji | 2239.01 |
| Chinese National Open 2014, Men Group | ||||
| Date | 2014-09-08 | Rating | 2063.50 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Loss | Mei Fan | 2580.15 |
| 2 | White | Win | Wang Di | 2028.56 |
| 3 | Black | Loss | Wang Qingqing | 2675.56 |
| 4 | Black | Draw | Zha Shicheng | 1995.73 |
| 5 | White | Loss | Chen Kaidi | 2005.60 |
| 6 | Black | Win | Zhou Jiahao | 1606.98 |
| 7 | White | Win | Wang Junbo | 2081.82 |
| Chinese National Open 2012, Men Group | ||||
| Date | 2012-06-24 | Rating | 1971.97 | |
| Round | Color | Result | Opponent | |
| 1 | White | Loss | Chen Kaidi | 1978.18 |
| 2 | Black | Draw | Huang Diandian | 2179.35 |
| 3 | White | Loss | Jin Hongli | 2343.88 |
| 4 | Black | Win | Ma Xiao | 1888.69 |
| 5 | White | Loss | Chen Jinghui | 2142.65 |
| 6 | Black | Loss | Liao Zhenhuan | 2023.87 |
| 7 | White | Win | Peng Tusheng | 1452.99 |
| 8 | Black | Loss | Chen Zuxin | 2221.09 |
| 2nd National Mind Sports Games of China, Men Group A | ||||
| Date | 2011-11-16 | Rating | 1966.26 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Loss | He Qian | 2085.68 |
| 2 | White | Loss | He Shaoting | 1901.68 |
| 3 | Black | Loss | Ren Jianfeng | 1980.26 |
| 4 | White | Loss | Qi Guangwei | 1901.53 |
| 5 | White | Draw | Xiao Zijiang | 1883.58 |
| 6 | Black | Win | Qi Kui | 1747.31 |
| 7 | White | Win | Yang Wenbo | 1750.20 |
| 8 | Black | Win | Liu Jingliang | 2143.78 |
| 9 | White | Win | Wei Qiang | 2057.74 |
| Chinese National Championship 2008 | ||||
| Date | 2008-12-14 | Rating | 1974.98 | |
| Round | Color | Result | Opponent | |
| 8 | Black | Loss | Qiu Weifu | 2233.70 |
| A1 | Black | Win | Wang Haiping | 1972.02 |
| A2 | Black | Loss | Chen Xin | 2336.69 |
| A3 | White | Loss | Jing Weijun | 2024.02 |
| A4 | White | Win | Liu Leining | 1900.08 |
| A5 | White | Loss | Dai Ruzhou | 2204.93 |
| A6 | White | Win | He Qian | 2000.23 |
| A7 | White | Loss | Wang Haibo | 2210.53 |