Cho, Masaki
Current rating: 1425
Record: 2-6
| Grand Prix Yokohama 2004 (COK limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 196 | Ozawa, Takeshi (1491) | Lost 0-2 | -181482 |
| 2sealed | 248 | Aihara, Hironori (1410) | Won 2-1 | +171499 |
| 3sealed | 188 | Yasufuku, Akihiro (1562) | Lost 0-2 | -171482 |
| 4sealed | 272 | Takemura, Kazunori (1451) | Lost 0-2 | -191463 |
| 5sealed | 235 | Tatsuhara, Satoshi (1474) | Lost 0-2 | -181445 |
| 6sealed | 201 | Imamura, Akihiro (1430) | Won 1-0 | +181463 |
| 7sealed | 162 | Ozawa, Masahiro (1410) | Lost 0-2 | -191444 |
| 8sealed | 21 | Itou, Takanori (1408) | Lost 0-2 | -191425 |
| average opponent: 1455record: 2-6 | new rating: 1425 | |||