Date, Hideyuki
Current rating: 1547
| Grand Prix Sendai 2010 (ROE standard) | starting rating: 1505 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 269 | Matsuo, Takanori (1489) | Won 2-0 | +181523 |
| 2standard | 56 | Tagomori, Shou (1548) | Won 2-1 | +181541 |
| 3standard | 24 | Chi, Tatsuya (1623) | Draw 1-1 | +21543 |
| 4standard | 130 | Tozuka, Kouta (1694) | Won 2-1 | +201563 |
| 5standard | 65 | Horikawa, Hideaki (1559) | Lost 0-2 | -181545 |
| 6standard | 139 | Yamano, Tatsuto (1434) | Won 2-1 | +161561 |
| 7standard | 79 | Ishii, Hayato (1769) | Won 2-0 | +221583 |
| 8standard | 48 | Tsuboyama, Shuta (1561) | Lost 1-2 | -181565 |
| 9standard | 93 | Abe, Hirofumi (1586) | Lost 1-2 | -181547 |
| top | average opponent: 1585record: 5-3-1 | new rating: 1547 | ||
| Grand Prix Yokohama 2010 (extended) | starting rating: 1463 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 424 | Nagashima, Yuji (1398) | Lost 1-2 | -191444 |
| 2extended | 296 | Shimodouzono, Shintaro (1448) | Lost 0-2 | -181426 |
| 3extended | 438 | Aizawa, Seiji (1463) | Won 2-0 | +191445 |
| 4extended | 415 | Yamaguchi, Koutarou (1563) | Won 2-1 | +201465 |
| 5extended | 256 | Yoneda, Taiichiro (1492) | Lost 0-2 | -171448 |
| 6extended | 318 | Igari, Takafumi (1486) | Draw 1-1 | 01448 |
| 7extended | 264 | Ishizawa, Daichi (1480) | Won 2-1 | +191467 |
| 8extended | 22 | Ideue, Tetsuya (1508) | Won 2-1 | +191486 |
| 9extended | 130 | Izumiya, Yoshiaki (1562) | Won 2-0 | +191505 |
| top | average opponent: 1489record: 5-3-1 | new rating: 1505 | ||
| Grand Prix Kyoto 2007 (PLC standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 168 | Tanaka, Yu (1466) | Lost 0-2 | -191481 |
| 2standard | 358 | Kusakabe, Shuichi (1551) | Won 2-1 | +201501 |
| 3standard | 266 | Hongou, Yuuichirou (1482) | Lost 1-2 | -191482 |
| 4standard | 294 | Ikenishi, Yoshinobu (1479) | Lost 0-2 | -181464 |
| 5standard | 331 | Iitoi, Fumiaki (1419) | Lost 0-2 | -191445 |
| 6standard | 293 | Suzuki, Kentaro (1446) | Won 2-1 | +181463 |
| top | average opponent: 1474record: 2-4 | new rating: 1463 | ||