Ratings
OKUBO Ryoichi (Japan)
Japanese name(s): 大久保良一6 tournaments
41 results
Player ID: 881
41 results
Player ID: 881
2005-07-17: 33rd all Japan(Japan)
| ARAKI Yasuyuki | won against | OKUBO Ryoichi |
| TSUJI Shinji | won against | OKUBO Ryoichi |
| OKUBO Ryoichi | won against | TOKUMARU Go |
| OKAMOTO Junya | won against | OKUBO Ryoichi |
| SAKA Hiroshi | won against | OKUBO Ryoichi |
| OKUBO Ryoichi | won against | TAMAKI Kyotaro |
2001-06-11: 29th Kanagawa All Japan Preliminaries Master(Japan)
2001-01-07: 21st Kanagawa Open A(Japan)
| OKUBO Ryoichi | won against | KOIWAI Katsuharu |
| OKUBO Ryoichi | won against | ITAGAKI Kenichi |
| TAKAHASHI Kanji | won against | OKUBO Ryoichi |
| OKUBO Ryoichi | won against | YASOJIMA Keiji |
| IMAYASU Hikari | won against | OKUBO Ryoichi |
| OKUBO Ryoichi | won against | KOIWAI Katsuharu |
| OKUBO Ryoichi | won against | ITABASHI Kunihiro |
| YAMADA Yuichi | won against | OKUBO Ryoichi |
| TAKASHIMA Ryoji | won against | OKUBO Ryoichi |
| OKUBO Ryoichi | won against | HAMADA Kikue |
1998-07-27: 26th All Japan(Japan)
| TSUCHIDA Eiji | won against | OKUBO Ryoichi |
| NAKAZAWA Hirofumi | won against | OKUBO Ryoichi |
| OKUBO Ryoichi | won against | YOSHIMURA Manabu |
1997-08-30 → 1997-08-31: EGP Paris(France)
1997-08-23 → 1997-08-24: Olympiades des jeux 2 MSO2(Great-Britain)
| OKUBO Ryoichi | won against | KASHIWABARA Takuji |
| BARNABA Donato | won against | OKUBO Ryoichi |
| OKUBO Ryoichi | won against | FASCE Paolo |
| LIANG Yi | lost to | OKUBO Ryoichi |
| OKUBO Ryoichi | lost to | CASPARD Emmanuel |
| ALDEBERT Marc | won against | OKUBO Ryoichi |
| OKUBO Ryoichi | won against | ANDRIANI Bintsa |
| SHAMAN David | won against | OKUBO Ryoichi |
| OKUBO Ryoichi | won against | ARNOLD Roy |
| FUKUI Seiji | 32-32 | OKUBO Ryoichi |
| OKUBO Ryoichi | lost to | BRIGHTWELL Graham |
| HANDEL Michael | won against | OKUBO Ryoichi |
| OKUBO Ryoichi | won against | PLOWMAN Guy |
| OKUBO Ryoichi | won against | ATKINSON Mark |
| SHAMAN David | won against | OKUBO Ryoichi |
| OKUBO Ryoichi | won against | VECCHI Elisabetta |
| SUEKUNI Makoto | won against | OKUBO Ryoichi |
| OKUBO Ryoichi | won against | TURNER Ian |
| KITAJIMA Hideki | won against | OKUBO Ryoichi |
| OKUBO Ryoichi | won against | TAKEDA Hajime |
| ANDRIANI Bintsa | 32-32 | OKUBO Ryoichi |
| OKUBO Ryoichi | won against | DE GREY Aubrey |