Okamoto, Hideaki
Current rating: 1444
Record: 6-10
| Grand Prix Nagoya 2016 (OGW limited) | starting rating: 1483 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 59 | Sato, Naoki (1591) | Won 2-0 | +201503 |
| 4sealed | 111 | Nagaoka, Takayuki (1845) | Lost 1-2 | -121491 |
| 5sealed | 382 | Shiomi, Genki (1630) | Lost 1-2 | -151476 |
| 6sealed | 631 | Taki, Yasunori (1517) | Won 2-0 | +191495 |
| 7sealed | 401 | Suga, Hiroki (1568) | Lost 1-2 | -171478 |
| 8sealed | 650 | Shibuya, Hikaru (1491) | Won 2-0 | +181496 |
| 9sealed | 346 | Sugiura, Toshitaka (1519) | Won 2-1 | +191515 |
| 10draft | 370 | Hirayama, Shigetaka (1562) | Lost 0-2 | -171498 |
| 11draft | 314 | Tsuboyama, Shuta (1515) | Lost 1-2 | -181480 |
| 12draft | 222 | Fujitani, Masahiro (1525) | Lost 0-2 | -171463 |
| 13draft | 250 | Kato, Naoki (1418) | Lost 1-2 | -191444 |
| average opponent: 1562record: 4-7 | new rating: 1444 | |||
| Grand Prix Chiba 2015 (MM2 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 2095 | Yoshizawa, Kaoru (1420) | Lost 0-2 | -191481 |
| 4sealed | 2259 | Tanaka, Shingo (1559) | Won 2-0 | +191500 |
| 5sealed | 2101 | Nishioka, Taisuke (1540) | Won 2-0 | +191519 |
| 6sealed | 2106 | Hsu, David (1520) | Lost 1-2 | -181501 |
| 7sealed | 2143 | Matuda, Amane (1540) | Lost 1-2 | -181483 |
| average opponent: 1516record: 2-3 | new rating: 1483 | |||