Kato, Keiichi
Current rating: 1402
Record: 4-11-1
| Grand Prix Chiba 2015 (MM2 limited) | starting rating: 1385 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 944 | Katou, Yuki (1521) | Lost 1-2 | -151370 |
| 2sealed | 1243 | Takagi, Kengo (1586) | Lost 1-2 | -151355 |
| 3sealed | 1345 | Liu, Keun-Lin (1464) | Won 2-1 | +201375 |
| 4sealed | 1242 | Takahasi, Yuu (1485) | Won 2-1 | +201395 |
| 5sealed | 1187 | Yasumoto, Tsubasa (1500) | Won 2-0 | +201415 |
| 6sealed | 968 | Honda, Atsuo (1696) | Lost 1-2 | -131402 |
| top | average opponent: 1542record: 3-3 | new rating: 1402 | ||
| Grand Prix Nagoya 2014 (BNG limited) | starting rating: 1412 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 540 | Fujita, Osamu (1801) | Lost 1-2 | -121400 |
| 2sealed | 732 | Fukui, Shunsuke (1481) | Won 2-1 | +201420 |
| 3sealed | 699 | Yokota, Masaaki (1405) | Lost 0-2 | -181402 |
| 4sealed | 870 | Umeyama, Yuuichi (1482) | Lost 0-2 | -171385 |
| top | average opponent: 1542record: 1-3 | new rating: 1385 | ||
| Grand Prix Nagoya 2012 (RTR standard) | starting rating: 1446 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 277 | Murao, Keisuke (1500) | Lost 0-2 | -171429 |
| 2standard | 609 | Iriki, Ryou (1482) | Lost 1-2 | -171412 |
| top | average opponent: 1491record: 0-2 | new rating: 1412 | ||
| Grand Prix Nagoya 2004 (5DN standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 15 | Yaoi, Tadashi (1465) | Draw 0-0 | -11499 |
| 2standard | 247 | Yamaguchi, Kei (1500) | Lost 0-2 | -181481 |
| 3standard | 360 | Ogawa, Taiki (1500) | Lost 0-2 | -171464 |
| 4standard | 421 | Watanabe, Daisuke (1464) | Lost 1-2 | -181446 |
| top | average opponent: 1482record: 0-3-1 | new rating: 1446 | ||