Kato, Masaaki
Current rating: 1516
Record: 10-10
| Grand Prix Kyoto 2017 (HOU limited) | starting rating: 1502 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 638 | Kashima, Akihiro (1672) | Lost 0-2 | -141488 |
| 2sealed | 672 | Martinez, Quentin (1345) | Won 2-1 | +151503 |
| 3sealed | 560 | Kawachi, Hayato (1566) | Won 2-0 | +191522 |
| 4sealed | 671 | Maruno, Takaaki (1521) | Lost 0-2 | -181504 |
| 5sealed | 687 | Suzuki, Katsumasa (1619) | Won 2-1 | +201524 |
| 6sealed | 453 | Nakamura, Junya (1669) | Won 2-0 | +211545 |
| 7sealed | 416 | Ueno, Hiroshi (1612) | Won 2-1 | +191564 |
| 8sealed | 304 | Tsutai, Koutarou (1313) | Won 2-0 | +141578 |
| 9sealed | 135 | Tanaka, Akira (1693) | Lost 0-2 | -161562 |
| 10draft | 276 | Fujii, Tomoyuki (1640) | Lost 0-2 | -171545 |
| 11draft | 71 | Keller, Thomas (1725) | Lost 0-2 | -151530 |
| 13draft | 301 | Kozu, Yu (1541) | Lost 0-2 | -171513 |
| 14draft | 225 | Shiomi, Genki (1637) | Lost 1-2 | -161497 |
| 15draft | 53 | Shoji, Hayato (1550) | Won 2-1 | +191516 |
| average opponent: 1579record: 7-7 | new rating: 1516 | |||
| Grand Prix Nagoya 2016 (OGW limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 134 | Yanagizawa, Kazutoyo (1293) | Lost 0-2 | -221478 |
| 2sealed | 883 | Singtokul, Nitikorn (1509) | Won 2-1 | +191497 |
| 3sealed | 711 | Kawaguchi, Kenji (1620) | Lost 0-2 | -161481 |
| 4sealed | 943 | Igarashi, Masaki (1483) | Won 2-1 | +181499 |
| 5sealed | 910 | Iwamoto, Tatsuki (1636) | Lost 1-2 | -151484 |
| 6sealed | 961 | Iida, Kazuhito (1531) | Won 2-1 | +181502 |
| average opponent: 1512record: 3-3 | new rating: 1502 | |||