Yamaguchi, Kouichi
Current rating: 1464
Record: 0-2-2
| Grand Prix Sendai 2010 (ROE standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 190 | Itou, Akira (1489) | Lost 1-2 | -181482 |
| 2standard | 331 | Honda, Takeru (1482) | Draw 1-1 | 01482 |
| 3standard | 311 | Kume, Akihiro (1483) | Draw 1-1 | 01482 |
| 4standard | 400 | Suzuki, Tetsuya (1499) | Lost 0-2 | -181464 |
| average opponent: 1488record: 0-2-2 | new rating: 1464 | |||