Tsubata, Masashi
Current rating: 1473
| Grand Prix Nagoya 2004 (5DN standard) | starting rating: 1488 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 188 | Sasagaki, Masaya (1500) | Won 2-0 | +181506 |
| 2standard | 224 | Tomihara, Shinsuke (1595) | Lost 1-2 | -161490 |
| 3standard | 306 | Kageyama, Tarou (1580) | Lost 1-2 | -171473 |
| top | average opponent: 1558record: 1-2 | new rating: 1473 | ||
| Grand Prix Kyoto 2003 (LGN limited) | starting rating: 1484 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 64 | Hayashi, Hiroki (1573) | Won 2-1 | +191503 |
| 2sealed | 66 | Nakajima, Tomoya (1518) | Lost 1-2 | -171486 |
| 3sealed | 156 | Kikuchi, Yuuji (1512) | Won 2-0 | +181504 |
| 4sealed | 83 | Nonishi, Keiichiro (1599) | Lost 1-2 | -161488 |
| top | average opponent: 1550record: 2-2 | new rating: 1488 | ||
| Grand Prix Utsunomiya 2002 (ONS rochester) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 100 | Ito, Takahiro(Nagano) (1500) | Lost 0-2 | -181482 |
| 2sealed | 280 | Ishida, Takuya (1482) | Won 2-0 | +181500 |
| 3sealed | 173 | Sato, Kimihiko (1591) | Lost 1-2 | -161484 |
| top | average opponent: 1524record: 1-2 | new rating: 1484 | ||