Katou, Taiju
Current rating: 1435
| Grand Prix Chiba 2016 (legacy) | starting rating: 1491 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 617 | Furukawa, Shun1524 (1500) | Lost 1-2 | -181473 |
| 2legacy | 758 | Arai, Yuma (1385) | Lost 0-2 | -201453 |
| 3legacy | 1164 | Kondo, Ryota (1466) | Lost 1-2 | -181435 |
| 4legacy | 1153 | Kunii, Taiki (1447) | Won 2-1 | +191454 |
| 5legacy | 1048 | Abe, Naohisa (1410) | Lost 0-2 | -191435 |
| top | average opponent: 1442record: 1-4 | new rating: 1435 | ||
| Grand Prix Shizuoka 2015 (KTK limited) | starting rating: 1484 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 639 | Nakamura, Kota (1500) | Lost 1-2 | -171467 |
| 2sealed | 914 | Okuzawa, Shuhei (1482) | Won 2-1 | +181485 |
| 3sealed | 925 | Samaru, Takafumi (1505) | Won 2-0 | +181503 |
| 4sealed | 729 | Moriai, Kozue (1551) | Won 2-0 | +191522 |
| 5sealed | 707 | Kubota, Takeshi (1556) | Lost 0-2 | -171505 |
| 6sealed | 872 | Takagi, Yui (1715) | Lost 0-2 | -141491 |
| top | average opponent: 1552record: 3-3 | new rating: 1491 | ||
| Grand Prix Yokohama 2013 (GTC limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 244 | Nakano, Ryoji (1500) | Lost 1-2 | -181482 |
| 2sealed | 313 | Inami, Yuuki (1462) | Won 2-0 | +181500 |
| 3sealed | 387 | Takahashi, Junya (1657) | Lost 0-2 | -161484 |
| top | average opponent: 1540record: 1-2 | new rating: 1484 | ||