Sekine, Yuuya
Current rating: 1517
Record: 4-3-1
| Grand Prix Niigata 2005 (Kamigawa block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 10 | Hatakeyama, Shota (1464) | Lost 0-2 | -191481 |
| 2block | 167 | Takei, Tomoyuki (1416) | Won 2-0 | +171498 |
| 3block | 166 | Kawabata, Yukito (1522) | Won 2-0 | +191517 |
| 4block | 115 | Watanabe, Taiga (1552) | Lost 1-2 | -181499 |
| 5block | 159 | Tanaka, Tomonori (1493) | Draw 1-1 | 01499 |
| 6block | 144 | Takebayashi, Tomo (1492) | Lost 1-2 | -181481 |
| 7block | 136 | Miyasaka, Takeshi (1497) | Won 2-0 | +181499 |
| 8block | 106 | Takakura, Hideo (1498) | Won 2-1 | +181517 |
| average opponent: 1492record: 4-3-1 | new rating: 1517 | |||