Guo Haisen (郭海森)
Place: Hefei, China
Rating: 2239.42, Std: 200.09, Rank: 386
First game: 2008-12-14, Last game: 2020-10-18
Top rating: 2239.42 (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 | 2239.42 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Weng Yuan | 1923.35 |
| 2 | White | Win | Wang Yilin | 2121.37 |
| 3 | Black | Loss | Wang Yuxi | 2298.28 |
| 4 | Black | Loss | Wan Junhong | 2509.97 |
| 5 | White | Win | Yuan Pui Peng | 1933.89 |
| 6 | Black | Loss | Wu Zhiqin | 2514.42 |
| 7 | White | Win | Wu Xinyue | 2081.06 |
| 8 | Black | Win | Zhang Zhiyuan | 2269.65 |
| 9 | White | Loss | Yang Tingyu | 2546.00 |
| “SOPAI Cup” 1st World Renju Open | ||||
| Date | 2018-11-25 | Rating | 2197.37 | |
| Round | Color | Result | Opponent | |
| 1 | White | Loss | Liu Yang | 2609.16 |
| 2 | White | Loss | Ling Shijie | 2403.24 |
| 3 | White | Loss | Yu Yajun | 2320.53 |
| 4 | White | Loss | Huo Jiuxu | 2320.67 |
| 5 | White | Win | Song Yu | 1975.37 |
| 6 | White | Win | Tian Hanfa | 1883.70 |
| 7 | Black | Loss | Okabe Hiroshi | 2680.48 |
| 8 | White | Win | Guo Song | 2064.61 |
| 9 | White | Win | Tao Junji | 2247.75 |
| Chinese National Open 2014, Men Group | ||||
| Date | 2014-09-08 | Rating | 2067.83 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Loss | Mei Fan | 2582.49 |
| 2 | White | Win | Wang Di | 2030.84 |
| 3 | Black | Loss | Wang Qingqing | 2676.49 |
| 4 | Black | Draw | Zha Shicheng | 1998.87 |
| 5 | White | Loss | Chen Kaidi | 2009.66 |
| 6 | Black | Win | Zhou Jiahao | 1609.81 |
| 7 | White | Win | Wang Junbo | 2084.44 |
| Chinese National Open 2012, Men Group | ||||
| Date | 2012-06-24 | Rating | 1975.06 | |
| Round | Color | Result | Opponent | |
| 1 | White | Loss | Chen Kaidi | 1980.95 |
| 2 | Black | Draw | Huang Diandian | 2185.31 |
| 3 | White | Loss | Jin Hongli | 2348.04 |
| 4 | Black | Win | Ma Xiao | 1892.00 |
| 5 | White | Loss | Chen Jinghui | 2147.83 |
| 6 | Black | Loss | Liao Zhenhuan | 2028.02 |
| 7 | White | Win | Peng Tusheng | 1454.68 |
| 8 | Black | Loss | Chen Zuxin | 2223.21 |
| 2nd National Mind Sports Games of China, Men Group A | ||||
| Date | 2011-11-16 | Rating | 1968.85 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Loss | He Qian | 2087.21 |
| 2 | White | Loss | He Shaoting | 1902.88 |
| 3 | Black | Loss | Ren Jianfeng | 1981.63 |
| 4 | White | Loss | Qi Guangwei | 1902.87 |
| 5 | White | Draw | Xiao Zijiang | 1884.83 |
| 6 | Black | Win | Qi Kui | 1748.45 |
| 7 | White | Win | Yang Wenbo | 1751.35 |
| 8 | Black | Win | Liu Jingliang | 2145.95 |
| 9 | White | Win | Wei Qiang | 2059.94 |
| Chinese National Championship 2008 | ||||
| Date | 2008-12-14 | Rating | 1976.69 | |
| Round | Color | Result | Opponent | |
| 8 | Black | Loss | Qiu Weifu | 2235.42 |
| A1 | Black | Win | Wang Haiping | 1973.17 |
| A2 | Black | Loss | Chen Xin | 2338.25 |
| A3 | White | Loss | Jing Weijun | 2025.25 |
| A4 | White | Win | Liu Leining | 1901.15 |
| A5 | White | Loss | Dai Ruzhou | 2206.63 |
| A6 | White | Win | He Qian | 2001.76 |
| A7 | White | Loss | Wang Haibo | 2212.25 |