Sugai, Akihito
Current rating: 1542
Record: 5-3
| Grand Prix Niigata 2005 (Kamigawa block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 55 | Yasufuku, Akihiro (1585) | Won 2-1 | +201520 |
| 2block | 1 | Take, Toshiharu (1519) | Lost 1-2 | -181502 |
| 3block | 148 | Umi, Hirokazu (1468) | Won 2-0 | +171519 |
| 4block | 138 | Saso, Kazuho (1502) | Won 2-1 | +181537 |
| 5block | 90 | Noguchi, Yuichiro (1628) | Lost 0-2 | -171520 |
| 6block | 105 | Yamakawa, Hiroyuki (1509) | Won 2-1 | +181538 |
| 7block | 63 | Kawaji, Takaaki (1533) | Won 2-0 | +181556 |
| 8block | 58 | Terasawa, Kazuya (1767) | Lost 0-2 | -141542 |
| average opponent: 1564record: 5-3 | new rating: 1542 | |||