Yoon Seong-Won
Place: Seoul, Republic of Korea
Rating: 2116.63, Std: 285.13, Rank: -
First game: 2006-08-15, Last game: 2018-07-22
Top rating: 2116.63 (2018-07-22)
Games: 20, Wins: 6, Draws: 3, Losses: 11
Gy1: 0, Gy2: 0, Gy5: 0
| The 3rd Korea Tournament | ||||
|---|---|---|---|---|
| Date | 2018-07-22 | Rating | 2116.63 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Draw | Han Tae-ho | 2330.96 |
| 2 | White | Win | Choi Chang-in | 1740.06 |
| 3 | White | Win | Han Jin-ea | 1891.05 |
| SQF | White | Loss | Choi Eun-seo | 2167.16 |
| Korea-Estonia Friendship Tournament | ||||
| Date | 2017-07-30 | Rating | 2110.13 | |
| Round | Color | Result | Opponent | |
| 4 | White | Win | Lee Sae-gang | 2079.37 |
| 5 | Black | Loss |  Soosõrv Ants | 2739.01 |
| The 6th Best of Best Match | ||||
| Date | 2006-12-03 | Rating | 1853.46 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Chang Jae-Won | 2022.88 |
| 2 | Black | Win | Byeon En-Seob | 1792.97 |
| 3 | White | Loss | Kim Su-chan | 2142.17 |
| 4 | Black | Loss | Choi Yun Suk | 2287.92 |
| 5 | White | Loss | Kim Byoung-Jun | 2493.19 |
| The 19th Ranking Tournament | ||||
| Date | 2006-11-26 | Rating | 1852.32 | |
| Round | Color | Result | Opponent | |
| 3 | Black | Win | Park Jong-Seon | 1655.46 |
| Asian Championship 2006 | ||||
| Date | 2006-08-15 | Rating | 1832.67 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Loss |  Okabe Hiroshi | 2599.01 |
| 2 | Black | Loss | Kuramoto Hideharu | 1878.29 |
| 3 | Black | Loss | Chang Kyoung-Jun | 1961.08 |
| 4 | White | Draw | Cha Jee-Young | 1704.06 |
| 5 | Black | Loss | Kwon Jae-Woo | 1894.01 |
| 6 | Black | Draw | Kang Bo-Ra | 1748.81 |
| 7 | White | Loss | Chang Jae-Won | 2019.27 |
| 8 | Black | Loss | Kubo Izumi | 2100.68 |