Yamamoto, Yoshinori
Current rating: 1493
Record: 5-6
| Grand Prix Kobe 2011 (extended) | starting rating: 1483 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 19 | Hishida, Akinori (1507) | Won 2-0 | +191502 |
| 2extended | 46 | Furutate, Mikihiko (1436) | Won 2-1 | +161518 |
| 3extended | 1 | Matsuyama, Satoshi (1717) | Won 2-0 | +221540 |
| 4extended | 72 | Kawakami, Kazuto (1764) | Lost 1-2 | -141526 |
| 5extended | 68 | Harada, Toshiyuki (1648) | Lost 0-2 | -161510 |
| 6extended | 196 | Kinoshita, Tomohiro (1552) | Lost 1-2 | -171493 |
| average opponent: 1604record: 3-3 | new rating: 1493 | |||
| Grand Prix Kyoto 2007 (PLC standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 84 | Takamatsu, Hiroomi (1569) | Lost 1-2 | -171483 |
| 2standard | 318 | Kobayashi, Yuuta (1482) | Lost 1-2 | -181465 |
| 3standard | 366 | Sugita, Tomohiro (1462) | Won 2-1 | +181483 |
| 4standard | 331 | Minoshima, Takenori (1463) | Won 2-0 | +181501 |
| 5standard | 276 | Miura, Mamoru (1520) | Lost 1-2 | -181483 |
| average opponent: 1499record: 2-3 | new rating: 1483 | |||