Ooi, Hiroki
Current rating: 1465
Record: 3-5
| Grand Prix Yokohama 2003 (Onslaught block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 187 | Toshida, Shin'ichi (1483) | Won 2-1 | +181518 |
| 2block | 91 | Iyanaga, Junya (1500) | Won 2-0 | +171535 |
| 3block | 26 | Murakami, Norichika (1614) | Won 2-1 | +201555 |
| 4block | 15 | Harada, Hiroshi (1545) | Lost 0-2 | -181537 |
| 5block | 108 | Miyaoi, Tomoyuki (1535) | Lost 0-2 | -181519 |
| 6block | 182 | Yazawa, Atsushi (1517) | Lost 0-2 | -181501 |
| 7block | 202 | Kubota, Junji (1521) | Lost 1-2 | -181483 |
| 8block | 217 | Tanaka, Yosuke (1482) | Lost 1-2 | -181465 |
| average opponent: 1525record: 3-5 | new rating: 1465 | |||