Sumi, Masahito
Current rating: 1445
Record: 2-5
| Grand Prix Sapporo 2002 (Odyssey block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 3 | Ozawa, Yasunobu (1500) | Lost 0-2 | -181482 |
| 2block | 186 | Nishimoto, Nobuhide (1482) | Won 2-1 | +181500 |
| 3block | 103 | Date, Tsutomu (1482) | Lost 1-2 | -181482 |
| 4block | 171 | Yagi, Wataru (1470) | Lost 0-2 | -191463 |
| 5block | 189 | Koeda, Satoru (1464) | Lost 0-2 | -181445 |
| 6block | 173 | Yamaguchi, Masashi (1445) | Won 2-1 | +181463 |
| 7block | 141 | Yasugahira, Motoki (1462) | Lost 0-2 | -181445 |
| average opponent: 1472record: 2-5 | new rating: 1445 | |||