Yamamaru, Naoki
Current rating: 1518
Record: 4-3
| Grand Prix Kobe 2001 (Invasion block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 320 | Nishikawa, Hiroki (1500) | Lost 0-2 | -181482 |
| 2block | 460 | Toyama, Kenichi (1482) | Won 2-0 | +181500 |
| 3block | 279 | Toda, Kensuke (1500) | Won 2-0 | +181518 |
| 4block | 156 | Matsumoto, Kenji (1518) | Won 2-0 | +181536 |
| 5block | 149 | Kasuya, Takeo (1536) | Won 2-1 | +181554 |
| 6block | 89 | Niihama, Tatsuo (1553) | Lost 1-2 | -181536 |
| 7block | 205 | Takahashi, Satoshi 2 (1520) | Lost 1-2 | -181518 |
| average opponent: 1516record: 4-3 | new rating: 1518 | |||