koyama, masashi[TK]
Current rating: 1502
Record: 4-4
| Grand Prix Okayama 2008 (ALA limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 205 | Masuyama, Takuya (1435) | Won 0-0 | +171517 |
| 2sealed | 38 | Houwa, Osamu (1610) | Lost 0-2 | -161501 |
| 3sealed | 212 | Hashiba, Daiki (1521) | Won 2-1 | +181519 |
| 4sealed | 133 | Hasegawa, Kazuhiko (1516) | Won 2-0 | +181537 |
| 5sealed | 55 | Watabe, Kazunori (1426) | Lost 0-2 | -201517 |
| 6sealed | 47 | Fujimori, Masayoshi (1566) | Won 2-1 | +191536 |
| 7sealed | 115 | Aoki, Ryousuke (1664) | Lost 0-2 | -161520 |
| 8sealed | 55 | Sasaki, Yuusuke (Hyogo) (1527) | Lost 0-2 | -181502 |
| average opponent: 1533record: 4-4 | new rating: 1502 | |||