Tsukada, Keiichi
Current rating: 1431
Record: 5-9
| Grand Prix Yokohama 2003 (Onslaught block) | starting rating: 1482 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 151 | Sawada, Youhei (1537) | Lost 0-2 | -171465 |
| 2block | 253 | Ono, Masayuki (1482) | Lost 0-2 | -181447 |
| 3block | 379 | Wakae, Akio (1426) | Won 2-0 | +181465 |
| 4block | 301 | Niimi, Kiyoaki (1474) | Won 2-0 | +181483 |
| 5block | 187 | Ogami, Kenji (1600) | Lost 1-2 | -161467 |
| 6block | 289 | Kamifuji, Kenichi (1452) | Lost 0-2 | -181449 |
| 7block | 280 | Fujimoto, Keiji (1462) | Lost 0-2 | -181431 |
| average opponent: 1491record: 2-5 | new rating: 1431 | |||
| Grand Prix Utsunomiya 2002 (ONS rochester) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 106 | Ito, Shuhei (1519) | Lost 0-2 | -181482 |
| 2sealed | 259 | Sasaki, Kuniaki (1482) | Won 2-1 | +181500 |
| 3sealed | 116 | Ueda, Takaya (1499) | Won 2-1 | +181518 |
| 4sealed | 161 | Asami, Hiroshi (1518) | Lost 1-2 | -181500 |
| 5sealed | 150 | Yamazaki, Kairi (1500) | Lost 0-2 | -181482 |
| 6sealed | 171 | Shibuya, Tsutomu (1444) | Lost 0-2 | -181464 |
| 7sealed | 152 | Abe, Naoki (1465) | Won 2-1 | +181482 |
| average opponent: 1489record: 3-4 | new rating: 1482 | |||