Kamata, Gosaku
Current rating: 1521
Record: 5-4
| Grand Prix Yokohama 2013 (GTC limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 1055 | Nishikawa, Yuuji (1465) | Won 2-0 | +171517 |
| 2sealed | 713 | Haruyama, Hayato (1518) | Won 2-0 | +181535 |
| 3sealed | 725 | Tamai, Hideaki (1507) | Won 2-1 | +181553 |
| 4sealed | 771 | Nagami, Youichi (1699) | Won 2-1 | +201573 |
| 5sealed | 683 | Shiraishi, Ryou (1676) | Won 2-0 | +201593 |
| 6sealed | 676 | Sasaki, Tsutomu (1577) | Lost 0-2 | -181575 |
| 7sealed | 714 | Tanaka, Shingo (1525) | Lost 1-2 | -191556 |
| 8sealed | 905 | Kawaguchi, Takashi (1608) | Lost 1-2 | -171539 |
| 9sealed | 938 | Akimoto, Shinichi (1520) | Lost 0-2 | -181521 |
| average opponent: 1566record: 5-4 | new rating: 1521 | |||