Hatanaka, Kengo
Current rating: 1466
Record: 6-8
| Grand Prix Kobe 2009 (extended) | starting rating: 1462 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 166 | Shiroza, Shinichiro (1534) | Lost 1-2 | -171445 |
| 2extended | 198 | Nagami, Yuuichi (1412) | Won 2-1 | +181463 |
| 3extended | 99 | Tachibana, Takahiro (1498) | Lost 1-2 | -181445 |
| 4extended | 217 | Ootake, Masanori (1482) | Lost 0-2 | -171428 |
| 5extended | 221 | Kunimoto, Ryuuichi (1502) | Won 2-1 | +191447 |
| 6extended | 184 | Yamamoto, Yasutomo (1399) | Won 2-1 | +171464 |
| 7extended | 112 | Isoda, Yusuke (1433) | Lost 0-2 | -181446 |
| 8extended | 67 | Imai, Masakatsu (1539) | Won 2-1 | +201466 |
| average opponent: 1475record: 4-4 | new rating: 1466 | |||
| Grand Prix Kobe 2008 (Lorwyn block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 107 | Kim, Inhwan (1502) | Lost 1-2 | -181482 |
| 2block | 310 | Miyazaki, Kensuke (1437) | Won 2-0 | +171499 |
| 3block | 223 | Kawachi, Yusuke (1462) | Won 2-1 | +181517 |
| 4block | 154 | Kanno, Masashi (1501) | Lost 0-2 | -191498 |
| 5block | 279 | Kondou, Masayuki (1448) | Lost 1-2 | -191479 |
| 6block | 252 | Yamashita, Kouhei (1514) | Lost 0-2 | -171462 |
| average opponent: 1477record: 2-4 | new rating: 1462 | |||