Hidaka, Katsu
Current rating: 1542
Record: 9-7
| Grand Prix Kyoto 2007 (PLC standard) | starting rating: 1519 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 150 | Seto, Masakazu (1541) | Won 2-0 | +181537 |
| 2standard | 81 | Sasaki, Ryouichi (1500) | Lost 1-2 | -191518 |
| 3standard | 181 | Shiono, Takayuki (1500) | Won 2-0 | +181536 |
| 4standard | 125 | Samiso, Yutaka (1518) | Lost 1-2 | -181518 |
| 5standard | 294 | Aizawa, Yuuichi (1609) | Won 2-1 | +191537 |
| 6standard | 198 | Park, Jun Young (1526) | Won 2-1 | +181555 |
| 7standard | 159 | Hirosawa, Yuuta (1817) | Lost 0-2 | -131542 |
| average opponent: 1573record: 4-3 | new rating: 1542 | |||
| Grand Prix Nagoya 2004 (5DN standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 199 | Miyoshi, Yasufumi (1500) | Lost 0-2 | -181482 |
| 2standard | 385 | Kikuchi, Hiroshi (1662) | Lost 1-2 | -151467 |
| 3standard | 411 | Nishiwaki, Yousuke (1500) | Won 2-0 | +191486 |
| 4standard | 376 | Kitazawa, Kiyohiro (1516) | Lost 1-2 | -181468 |
| 5standard | 378 | Matsubayashi, Masahiro (1453) | Lost 0-2 | -181450 |
| 6standard | 356 | Horie, Yuuki (1444) | Won 2-0 | +181468 |
| 7standard | 278 | Nakanishi, Eiji (1367) | Won 2-1 | +161484 |
| 8standard | 234 | Honda, Youichiro (1479) | Won 2-0 | +181502 |
| 9standard | 167 | Endo, Tadashi (1429) | Won 2-1 | +171519 |
| average opponent: 1483record: 5-4 | new rating: 1519 | |||