Sugihara, Keiichi
Current rating: 1456
| Grand Prix Hiroshima 2003 (extended) | starting rating: 1534 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 76 | Nakagawa, Yukihiro (1501) | Draw 1-1 | 01534 |
| 2extended | 105 | Ohige, Tatsuya (1446) | Lost 0-2 | -201514 |
| 3extended | 149 | Itou, Shin (1515) | Lost 0-2 | -181496 |
| 4extended | 180 | Tanikawa, Itaru (1417) | Lost 0-2 | -191477 |
| 5extended | 176 | Sumino, Hironori (1373) | Lost 0-2 | -201457 |
| 6extended | 157 | Yamada, Yasuo (1433) | Lost 0-2 | -191438 |
| 7extended | 133 | Miyake, Takaaki (1389) | Won 2-0 | +181456 |
| top | average opponent: 1439record: 1-5-1 | new rating: 1456 | ||
| Grand Prix Kobe 2001 (Invasion block) | starting rating: 1560 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 316 | Nishimura, Norihito (1500) | Lost 0-2 | -191541 |
| 2block | 566 | Nakano, Shin (1482) | Won 2-0 | +171558 |
| 3block | 260 | Onuki, Takeshi (1500) | Lost 1-2 | -191539 |
| 4block | 556 | Asada, Katsuyuki (1481) | Won 2-0 | +171556 |
| 5block | 376 | Kamimoto, Hiroshi (1500) | Lost 1-2 | -191537 |
| 6block | 393 | Harada, Toshiyuki (1448) | Lost 1-2 | -201517 |
| 7block | 390 | Hiraishi, Takashi (1464) | Won 2-1 | +171534 |
| top | average opponent: 1482record: 3-4 | new rating: 1534 | ||
| Grand Prix Hiroshima 2001 (INV limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 19 | Ogura, Daizo (1500) | Won 2-0 | +181518 |
| 2sealed | 59 | Amano, Hideaki (1469) | Won 2-1 | +171535 |
| 3sealed | 13 | Hirabayashi, Kazuya (1667) | Won 2-0 | +211556 |
| 4sealed | 17 | Nakamura, Satoshi (1700) | Lost 0-2 | -161540 |
| 5sealed | 23 | Nakagawa, Yukihiro (1555) | Won 2-0 | +181558 |
| 6sealed | 47 | Kusaba, Nobutaka (1606) | Won 2-1 | +191577 |
| 7sealed | 17 | Fujita, Kenichi (1636) | Lost 0-2 | -171560 |
| top | average opponent: 1591record: 5-2 | new rating: 1560 | ||