Sumida, Yasuhiko
Current rating: 1496
Record: 4-4
| Grand Prix Kobe 2008 (Lorwyn block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 63 | Itou, Ryouta (1367) | Lost 0-2 | -201480 |
| 2block | 348 | Ogawa, Kouki (1482) | Won 2-0 | +181498 |
| 3block | 145 | Takahashi, Nozomu (1568) | Lost 0-2 | -171481 |
| 4block | 299 | Kawase, Yasuhiro (1469) | Won 2-1 | +181499 |
| 5block | 210 | Yuki, Hiroki (1502) | Lost 0-2 | -181481 |
| 6block | 240 | Okazaki, Hideki (1481) | Lost 0-2 | -181463 |
| 7block | 241 | Arakane, Daisuke (1380) | Won 2-0 | +161479 |
| 8block | 178 | Miura, Tadayuki (1408) | Won 2-1 | +171496 |
| average opponent: 1457record: 4-4 | new rating: 1496 | |||