Tokunaga, Tatsuya
Current rating: 1469
Record: 5-7
| Grand Prix Kyoto 2007 (PLC standard) | starting rating: 1467 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 17 | Kounoike, Masaki (1475) | Won 2-1 | +181485 |
| 2standard | 97 | Kondou, Masayuki (1518) | Lost 1-2 | -171468 |
| 3standard | 147 | Aizawa, Takeshi (1506) | Won 2-1 | +191487 |
| 4standard | 188 | Yanase, Kaname (1532) | Lost 0-2 | -181469 |
| average opponent: 1508record: 2-2 | new rating: 1469 | |||
| Grand Prix Matsuyama 2005 (BOK limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 62 | Muneyasu, Juri (1500) | Won 2-0 | +181518 |
| 2sealed | 17 | Hasegawa, Taro (1593) | Lost 0-2 | -171501 |
| 3sealed | 91 | Niimi, Kiyoaki (1555) | Lost 0-2 | -171484 |
| 4sealed | 172 | Nakano, Fumiki (1569) | Lost 0-2 | -161468 |
| 5sealed | 167 | Furukawa, Kazuya (1464) | Lost 0-2 | -181450 |
| 6sealed | 146 | Satou, Yoshirou (1427) | Won 2-0 | +171467 |
| 7sealed | 121 | Oono, Hirofumi (1461) | Lost 0-2 | -181449 |
| 8sealed | 104 | Kaneyasu, Takeshi (1447) | Won 2-0 | +181467 |
| average opponent: 1502record: 3-5 | new rating: 1467 | |||