Katou, Ichirou
Current rating: 1608
| Grand Prix Kyoto 2007 (PLC standard) | starting rating: 1518 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 1 | Horiuchi, Shouta (1500) | Won 2-1 | +181536 |
| 2standard | 152 | Kou, Changsu (1500) | Won 2-1 | +171553 |
| 3standard | 84 | Take, Toshiharu (1655) | Won 2-1 | +201573 |
| 4standard | 17 | Oomura, Tomoya (1558) | Won 2-0 | +181591 |
| 5standard | 27 | Oomiya, Akira (1508) | Won 2-1 | +161607 |
| 6standard | 18 | Morita, Masahiko (2003) | Lost 0-2 | -111596 |
| 7standard | 33 | Hashimoto, Yuu (1638) | Won 2-0 | +191615 |
| 8standard | 34 | Ishikawa, Ren (1875) | Won 2-0 | +231638 |
| 9standard | 4 | Yasutomi, Hiroto (1857) | Lost 1-2 | -151623 |
| 10standard | 52 | Yotsumoto, Yuki (1579) | Won 2-1 | +181641 |
| 11standard | 31 | Naitou, Keisuke (1565) | Won 2-0 | +161657 |
| 12standard | 56 | Takesue, Chikara (1581) | Lost 0-2 | -191638 |
| 13standard | 55 | Ootsuka, Koutarou (1923) | Lost 1-2 | -131625 |
| 14standard | 55 | Takahashi, Yuta (1686) | Lost 0-2 | -171608 |
| top | average opponent: 1673record: 9-5 | new rating: 1608 | ||
| Grand Prix Kobe 2001 (Invasion block) | starting rating: 1519 | |||
| round | table | opponent (rating) | result | Δrating |
| 2block | 339 | Osawa, Takuya (1518) | Lost 0-2 | -181501 |
| 3block | 482 | Nakagawa, Hiroyuki (1500) | Won 2-1 | +181519 |
| 4block | 271 | Ando, Hiroaki (1534) | Lost 0-2 | -171502 |
| 5block | 317 | Sawada, Akane (1450) | Won 2-0 | +171519 |
| 6block | 359 | Sakamoto, Masaaki (1516) | Won 2-1 | +181537 |
| 7block | 177 | Kiwaki, Toshiyuki (1519) | Lost 0-2 | -191518 |
| top | average opponent: 1506record: 3-3 | new rating: 1518 | ||
| Grand Prix Kyoto 2000 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 203 | Yaoi, Tadashi (1500) | Won 2-0 | +181518 |
| 2extended | 87 | Nakashima, Wataru (1518) | Won 2-0 | +181536 |
| 3extended | 5 | Kawai, Katsuya (1536) | Won 2-1 | +181554 |
| 4extended | 69 | Harada, Hiroshi (1551) | Lost 0-2 | -181536 |
| 5extended | 104 | Fujita, Kenichi (1610) | Lost 1-2 | -171519 |
| top | average opponent: 1543record: 3-2 | new rating: 1519 | ||