Adachi, Hikaru
Current rating: 1422
Record: 5-10-1
| Grand Prix Yokohama 2004 (COK limited) | starting rating: 1428 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 22 | Yamamoto, Takao (1471) | Lost 0-2 | -171411 |
| 2sealed | 268 | Matsumoto, Koichi (1484) | Draw 1-1 | +11412 |
| 3sealed | 270 | Matsushima, Kouji (1442) | Won 2-1 | +191431 |
| 4sealed | 209 | Horie, Isamu (1503) | Lost 1-2 | -171414 |
| 5sealed | 222 | Nihongi, Yuta (1431) | Won 2-0 | +181432 |
| 6sealed | 163 | Shima, Junichirou (1611) | Lost 1-2 | -141418 |
| 7sealed | 153 | Higono, Naoki (1567) | Won 2-0 | +201438 |
| 8sealed | 86 | Watanabe, Yuuya (1535) | Lost 1-2 | -161422 |
| average opponent: 1505record: 3-4-1 | new rating: 1422 | |||
| Grand Prix Yokohama 2003 (Onslaught block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 138 | Murayama, Terukazu (1523) | Lost 1-2 | -181482 |
| 2block | 231 | Yamanishi, Mamoru (1591) | Lost 0-2 | -161466 |
| 3block | 365 | Seok, Jeong - hun (1464) | Lost 0-2 | -181448 |
| 4block | 382 | Watanabe, Tetsuo (1447) | Won 2-1 | +181466 |
| 5block | 339 | Kawabata, Kiyoto (1464) | Lost 0-1 | -181448 |
| 6block | 338 | Oosaki, Masakazu (1338) | Lost 0-2 | -201428 |
| 7block | 294 | Tate, Yosinobu (1427) | Lost 0-2 | -181410 |
| 8block | 259 | Kosugi, Souichi (1409) | Won 2-1 | +181428 |
| average opponent: 1458record: 2-6 | new rating: 1428 | |||