Kosugi, Souichi
Current rating: 1391
Record: 1-7
| Grand Prix Yokohama 2003 (Onslaught block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 133 | Oohira, Kenta (1464) | Lost 1-2 | -191481 |
| 2block | 294 | Miyaoi, Tomoyuki (1483) | Lost 0-2 | -181463 |
| 3block | 367 | Sato, Ken (1465) | Lost 0-2 | -181445 |
| 4block | 378 | Raymond, Paul-emile (1445) | Won 2-1 | +181463 |
| 5block | 322 | Niimi, Kiyoaki (1456) | Lost 0-2 | -181445 |
| 6block | 324 | Konno, Daisuke (1444) | Lost 1-2 | -181427 |
| 7block | 295 | Boku, Takashi (1410) | Lost 0-2 | -181409 |
| 8block | 259 | Adachi, Hikaru (1410) | Lost 1-2 | -181391 |
| average opponent: 1447record: 1-7 | new rating: 1391 | |||