Okamura, Hiroshi
Current rating: 1519
Record: 5-4
| Grand Prix Yokohama 2013 (GTC limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 1003 | Kobayashi, Yuuki (1475) | Won 2-0 | +181518 |
| 2sealed | 747 | Kanazawa, Kyougo (1483) | Lost 1-2 | -191499 |
| 3sealed | 919 | Iino, Ryuji (1554) | Lost 1-2 | -171482 |
| 4sealed | 1085 | Sato, Daisuke (1409) | Won 2-1 | +171499 |
| 5sealed | 921 | Terukastu, Kobayashi (1499) | Won 2-0 | +181517 |
| 6sealed | 920 | U., Naoki (1521) | Lost 1-2 | -181499 |
| 7sealed | 890 | Amayasu, Kazunori (1416) | Won 2-1 | +161515 |
| 8sealed | 1015 | Shirakihara, Ryuuichi (1591) | Lost 0-2 | -161499 |
| 9sealed | 984 | Tsuba, Yuuki (1624) | Won 2-1 | +201519 |
| average opponent: 1508record: 5-4 | new rating: 1519 | |||