Takahashi, Katsuhiko
Current rating: 1431
Record: 4-8
| Grand Prix Nagoya 2004 (5DN standard) | starting rating: 1460 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 105 | Nakamura, Yuusuke (1553) | Lost 1-2 | -161444 |
| 2standard | 317 | Tanaka, Makoto (1507) | Won 2-0 | +191463 |
| 3standard | 182 | Harada, Satoshi (1679) | Lost 0-2 | -141449 |
| 4standard | 329 | Tatsumi, Yasuhiro (1443) | Lost 1-2 | -181431 |
| average opponent: 1546record: 1-3 | new rating: 1431 | |||
| Grand Prix Okayama 2004 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 94 | Oomura, Yasuhira (1464) | Lost 0-2 | -191481 |
| 2extended | 150 | Yoshida, Mitsutaka (1326) | Won 2-0 | +161497 |
| 3extended | 140 | Ogata, Atsushi (1517) | Won 1-0 | +181515 |
| 4extended | 76 | Kawasaki, Yasuhiro (1499) | Lost 1-2 | -181497 |
| 5extended | 132 | Morisaki, Nobuki (1506) | Lost 0-2 | -181479 |
| 6extended | 124 | Simabukuro, Moriaka (1481) | Lost 0-2 | -181461 |
| 7extended | 117 | Hyakusai, Kouichi (1427) | Won 2-0 | +171478 |
| 8extended | 98 | Chuujou, Yoshihiko (1477) | Lost 1-2 | -181460 |
| average opponent: 1462record: 3-5 | new rating: 1460 | |||