Goto, Kosei
Current rating: 1465
Record: 3-5
| Grand Prix Nagoya 2004 (5DN standard) | starting rating: 1481 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 3 | Inagaki, Ryou (1500) | Lost 0-2 | -181463 |
| 2standard | 360 | Oonishi, Tatsuya (1517) | Lost 0-2 | -171446 |
| 3standard | 398 | Furusawa, Tomoaki (1463) | Won 2-1 | +191465 |
| average opponent: 1493record: 1-2 | new rating: 1465 | |||
| Grand Prix Kyoto 2000 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 54 | Sasakawa, Yasushi (1500) | Won 2-0 | +181518 |
| 2extended | 34 | Nishijima, Yuichi (1518) | Won 2-1 | +181536 |
| 3extended | 23 | Edayoshi, Minoru (1478) | Lost 0-2 | -191517 |
| 4extended | 151 | Okamoto, Takahiro (1501) | Lost 0-2 | -181499 |
| 5extended | 207 | Nomichi, Hideki (1515) | Lost 0-2 | -181481 |
| average opponent: 1502record: 2-3 | new rating: 1481 | |||