Ratings
KOYAMA Yasuyuki (Japan)
Japanese name(s): 小山泰幸17 tournaments
97 results
Player ID: 6846
97 results
Player ID: 6846
2009-01-04: 61_Kanagawa_Open_B(Japan)
| OHMORI Keita | 47-17 | KOYAMA Yasuyuki |
| KOYAMA Yasuyuki | 45-19 | SANO Yoko |
| KOYAMA Yasuyuki | 48-16 | SUGISAKI Harumi |
| KOYAMA Yasuyuki | 36-28 | TANIGUCHI Yukiyoshi |
| MATSUZAWA Atsushi | 49-15 | KOYAMA Yasuyuki |
| SATAKE Yosuke | 39-25 | KOYAMA Yasuyuki |
2008-04-13: Shizuoka championship 2008(Japan)
2008-04-06: 7_Yamanashi_Open(Japan)
2008-02-24: 29th Shizuoka expert game(Japan)
2008-02-03: New Year othello conference(Japan)
2008-01-06: Shinagawa Open 2008 advanced(Japan)
| KOYAMA Yasuyuki | won against | SATO Masuo |
| KOYAMA Yasuyuki | won against | YUKA Takaaki |
| FUJITA Takeshi | won against | KOYAMA Yasuyuki |
| KOYAMA Yasuyuki | won against | KANAZAWA Miyuki |
| ARAKI Yasuyuki | won against | KOYAMA Yasuyuki |
| KURACHI Takayuki | won against | KOYAMA Yasuyuki |
| IKEDA Atsuhiko | won against | KOYAMA Yasuyuki |
| KOYAMA Yasuyuki | lost to | KOBAYASHI Syunjiro |
| KOYAMA Yasuyuki | won against | YOSHIDA Masa |
| KOYAMA Yasuyuki | won against | MORIMOTO Baidu |
| TSUNODA Keita | won against | KOYAMA Yasuyuki |
| TANAKA Atsushi | won against | KOYAMA Yasuyuki |
| KOYAMA Yasuyuki | won against | NAGAYA Toshiko |
| TAKIGAWA Mitsuaki | won against | KOYAMA Yasuyuki |
| NAMIKI Kazunari | won against | KOYAMA Yasuyuki |
| KOYAMA Yasuyuki | won against | HASEGAWA Toshi |
| SANO Hirotaka | lost to | KOYAMA Yasuyuki |
| NAGAO Hiroto | won against | KOYAMA Yasuyuki |
| ARAKI Yasuyuki | lost to | KOYAMA Yasuyuki |
| FUJITA Takeshi | won against | KOYAMA Yasuyuki |
| KOSHINO Kazuhiko | won against | KOYAMA Yasuyuki |
| TAMAKI Kyotaro | won against | KOYAMA Yasuyuki |
| KOYAMA Yasuyuki | won against | YASHIRO Miyabi |
| KOYAMA Yasuyuki | won against | SATO Tetsuya |
| TAKIGAWA Mitsuaki | won against | KOYAMA Yasuyuki |
| NAGANO Yasushi | won against | KOYAMA Yasuyuki |
2007-03-25: 28_Meijin_finals(Japan)
2007-03-04: 52nd Kanagawa Open A(Japan)
2007-03-03: 33_Shinagawa_open(Japan)
2007-01-07: 51st Kanagawa Open A(Japan)
| KOYAMA Yasuyuki | 43-21 | SAWADA Tomohiro |
| ARAKI Yasuyuki | 43-21 | KOYAMA Yasuyuki |
| KURACHI Takayuki | 46-18 | KOYAMA Yasuyuki |
| UNO Toshihiro | 33-31 | KOYAMA Yasuyuki |
| KOYAMA Yasuyuki | 37-27 | MUKAI Daisuke |
| OGURI Kenji | 64-00 | KOYAMA Yasuyuki |
| SANO Yoko | won against | KOYAMA Yasuyuki |
| KOYAMA Yasuyuki | won against | HINO Kazue |
| NARIYA Makoto | won against | KOYAMA Yasuyuki |
| KOYAMA Yasuyuki | won against | SUGISAKI Harumi |
| ISHIHARA Makoto | won against | KOYAMA Yasuyuki |
| KOYAMA Yasuyuki | won against | YAMAZAKI Nobuyuki |
| KOSHINO Kazuhiko | 40-24 | KOYAMA Yasuyuki |
| KOYAMA Yasuyuki | 61-03 | HINO Kazue |
| KOMAGATA Masayuki | 45-19 | KOYAMA Yasuyuki |
| NARIYA Makoto | 48-16 | KOYAMA Yasuyuki |
| KOYAMA Yasuyuki | 33-31 | KIMURA Masashi |
| SATAKE Yosuke | 33-31 | KOYAMA Yasuyuki |
| SAWAKI Yusuke | won against | KOYAMA Yasuyuki |
| KOYAMA Yasuyuki | won against | TAKEDA Kyoko |
| KOYAMA Yasuyuki | won against | HAMADA Kikue |
| OZAWA Kou | won against | KOYAMA Yasuyuki |
| KOYAMA Yasuyuki | won against | MITSUYA Nobuaki |
| KOYAMA Yasuyuki | won against | YAMAGUCHI Yoshiaki |
2006-12-10: 228th Kyoto Open(Japan)
2006-12-02: 31_Shinagawa_open(Japan)
2006-09-10: 225th Kyoto meeting(Japan)
2006-02-26: 24th Shizuoka Expert Game(Japan)
| OBAMA Satomi | won against | KOYAMA Yasuyuki |
| OKAMOTO Kazuki | won against | KOYAMA Yasuyuki |
| KOYAMA Yasuyuki | won against | TARU Eiichi |
| KOYAMA Yasuyuki | won against | YAMAZOE Keiji |
| IO Hideo | won against | KOYAMA Yasuyuki |
| KOYAMA Yasuyuki | won against | SHIMIZU Takao |
| WATANABE Keiichi | 34-30 | KOYAMA Yasuyuki |
| KOYAMA Yasuyuki | 43-21 | SATO Tetsuya |
| NAGASAKI Hidekazu | 38-26 | KOYAMA Yasuyuki |
| KOYAMA Yasuyuki | 55-09 | OKAMOTO Naoya |
| KOYAMA Yasuyuki | 42-22 | NOGAMI Yoshiyuki |
| KOSHINO Kazuhiko | 39-25 | KOYAMA Yasuyuki |
| KANAI Kyousuke | won against | KOYAMA Yasuyuki |
| YAMAZOE Keiji | won against | KOYAMA Yasuyuki |
| KOYAMA Yasuyuki | won against | IO Hideo |
| KOYAMA Yasuyuki | won against | KIMURA Keigo |
| KOYAMA Yasuyuki | won against | SHUTSHUKE Yuuko |
| SUGASE Takahiro | won against | KOYAMA Yasuyuki |
| KOYAMA Yasuyuki | won against | NAGAI Makoto |
| KOYAMA Yasuyuki | won against | DATE Yuji |
| SUZUKI Takahiro | won against | KOYAMA Yasuyuki |
| OGURI Kenji | won against | KOYAMA Yasuyuki |
| IWASAKI Masaaki | won against | KOYAMA Yasuyuki |
2005-05-07: 13_Shinagawa_open(Japan)
2005-03-21: Shinagawa International 2005(Japan)
| KOYAMA Yasuyuki | 37-27 | TACHIKI Akira |
| KOYAMA Yasuyuki | 38-26 | HAYASHI Yusuke |
| SUKO Masayuki | 33-31 | KOYAMA Yasuyuki |
| KOYAMA Yasuyuki | 35-29 | SHIMIZU Kouichi |
| ENOMOTO Yasuhiro | 45-19 | KOYAMA Yasuyuki |
| WATANABE Keiichi | 46-18 | KOYAMA Yasuyuki |
| KOYAMA Yasuyuki | 56-08 | SHIMIZU Kouichi |
| KIMURA Keigo | 40-24 | KOYAMA Yasuyuki |
| DI MEGLIO Fabrice | 52-12 | KOYAMA Yasuyuki |
| KOYAMA Yasuyuki | 43-21 | SAWAKI Yusuke |
| NAKAMORI Hiroki | 43-21 | KOYAMA Yasuyuki |
| KOYAMA Yasuyuki | 42-22 | KAWABATA Seiji |
2004-06-12: 2_Shinagawa_open(Japan)
| KINOSHITA Hisako | 40-24 | KOYAMA Yasuyuki |
| KOYAMA Yasuyuki | 36-28 | NAKANO Ryohei |
| HATAKEYAMA Tomohiro | 41-23 | KOYAMA Yasuyuki |
| KOYAMA Yasuyuki | 45-19 | FUJINO Shigeru |
| SANO Yoko | won against | KOYAMA Yasuyuki |
| KOYAMA Yasuyuki | 45-19 | TATSUMI-IIJIMA Yukiko |