Hamaoka, Shuuhei
Current rating: 1531
Record: 9-7
| Grand Prix Sendai 2004 (DST limited) | starting rating: 1537 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 16 | Murakami, Ken (1480) | Lost 1-2 | -191518 |
| 2sealed | 159 | Nomura, Eiji (1633) | Won 2-0 | +201538 |
| 3sealed | 110 | Kishida, Hirokazu (1445) | Lost 0-2 | -201518 |
| 4sealed | 167 | Haneda, Masatoshi (1451) | Lost 0-2 | -191499 |
| 5sealed | 191 | Matsuzaki, Takanori (1536) | Won 2-1 | +191518 |
| 6sealed | 154 | Ooshima, Kunihiro (1478) | Won 2-1 | +171535 |
| 7sealed | 106 | Nakamura, Yoichi (1366) | Lost 1-2 | -211514 |
| 8sealed | 106 | Jung, Si Yong (1482) | Won 2-1 | +171531 |
| average opponent: 1484record: 4-4 | new rating: 1531 | |||
| Grand Prix Shizuoka 2003 (MRD limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 100 | Omori, Kazuto (1523) | Lost 1-2 | -181482 |
| 2sealed | 189 | Goto, Kiyoaki (1520) | Lost 0-2 | -171465 |
| 3sealed | 260 | Kobara, Shinji (1465) | Won 2-0 | +181483 |
| 4sealed | 259 | Harada, Hiroshi (1477) | Won 2-1 | +181501 |
| 5sealed | 194 | Taguchi, Kenji (1471) | Lost 1-2 | -191482 |
| 6sealed | 164 | Miura, Yushiro (1481) | Won 2-1 | +181500 |
| 7sealed | 137 | Sato, Kimihiko (1556) | Won 2-1 | +191519 |
| 8sealed | 89 | Komatsu, Takashi (1486) | Won 2-1 | +181537 |
| average opponent: 1497record: 5-3 | new rating: 1537 | |||