Hakamata, Hiroaki
Current rating: 1505
Record: 5-5-1
| Grand Prix Shizuoka 2003 (MRD limited) | starting rating: 1502 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 2 | Iwakura, Tatsuro (1519) | Lost 1-2 | -181484 |
| 2sealed | 252 | Kishishita, Jun (1482) | Won 2-0 | +181502 |
| 3sealed | 140 | Harada, Hiroshi (1495) | Won 2-0 | +181520 |
| 4sealed | 180 | Yamada, Tsutomu (1691) | Lost 0-1 | -151505 |
| average opponent: 1547record: 2-2 | new rating: 1505 | |||
| Grand Prix Yokohama 2003 (Onslaught block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 194 | Konuma, Tetsuya (1500) | Won 2-0 | +181518 |
| 2block | 198 | Asai, Ryuusuke (1518) | Lost 0-2 | -181500 |
| 3block | 302 | Kobori, Tetsuhiro (1430) | Won 2-1 | +171517 |
| 4block | 139 | Doiuchi, Yasuhiro (1602) | Lost 0-2 | -171500 |
| 5block | 222 | Komiyama, Hideki (1609) | Draw 1-1 | +21502 |
| 6block | 232 | Okada, Seiji (1467) | Won 2-0 | +181520 |
| 7block | 169 | Kitano, Tetsuya (1547) | Lost 0-2 | -181502 |
| average opponent: 1525record: 3-3-1 | new rating: 1502 | |||