Ookubo, Yoshirou
Current rating: 1444
Record: 7-10-1
| Grand Prix Nagoya 2016 (OGW limited) | starting rating: 1499 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 849 | Asama, Daichi (1500) | Lost 1-2 | -181481 |
| 2sealed | 820 | Hamasaki, Yuzuru (1446) | Lost 0-2 | -191462 |
| 3sealed | 1206 | Sasai, Keisuke (1467) | Won 2-1 | +181480 |
| 4sealed | 1146 | Kumayabu, Katuhiro (1465) | Lost 1-2 | -181462 |
| 5sealed | 1065 | Doi, Satsuki (1466) | Won 2-0 | +181480 |
| 6sealed | 942 | Murase, Atsushi (1412) | Lost 1-2 | -191461 |
| 7sealed | 934 | Tokumine, Makoto (1458) | Won 2-1 | +181479 |
| 8sealed | 766 | Xu, Haoyu (1538) | Lost 1-2 | -171462 |
| 9sealed | 669 | Hirao, Takahisa (1470) | Lost 1-2 | -181444 |
| average opponent: 1469record: 3-6 | new rating: 1444 | |||
| Grand Prix Nagoya 2014 (BNG limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 546 | Tomizawa, Youhei (1587) | Won 2-1 | +201520 |
| 2sealed | 711 | Shibata, Daisuke (1496) | Lost 1-2 | -191501 |
| 3sealed | 820 | Nishioka, Junji (1500) | Won 2-0 | +181519 |
| 4sealed | 735 | Kawaguchi, Tetsu (1420) | Lost 0-2 | -201499 |
| 5sealed | 705 | Yamashita, Masahiro (1502) | Lost 0-2 | -181481 |
| 6sealed | 766 | Inada, Tsuyoshi (1383) | Draw 1-1 | -11480 |
| 7sealed | 747 | Ishii, Masashi (1421) | Lost 0-1 | -191461 |
| 8sealed | 718 | Kawakami, Naoya (1462) | Won 2-1 | +181479 |
| 9sealed | 671 | Nakashima, Toshihiko (1591) | Won 2-1 | +201499 |
| average opponent: 1485record: 4-4-1 | new rating: 1499 | |||