Iwasaki, Tosihiro
Current rating: 1478
Record: 8-9
| Grand Prix Kobe 2017 (modern) | starting rating: 1496 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 220 | Tanaka, Takuma (1500) | Lost 0-1 | -181478 |
| 2modern | 952 | Kurata, Kazuyoshi (1503) | Lost 1-2 | -171461 |
| 3modern | 1273 | Okada, Minori (1466) | Lost 1-2 | -181443 |
| 4modern | 1267 | Senoo, Kazumasa (1396) | Won 2-1 | +171460 |
| 5modern | 1182 | Shinmura, Yuuki (1388) | Won 2-1 | +171477 |
| 6modern | 961 | Yuki, Ryosuke (1415) | Won 2-0 | +171494 |
| 7modern | 815 | Takei, Masaya (1479) | Won 2-0 | +171511 |
| 8modern | 643 | Tani, Chiharu (1673) | Lost 0-2 | -151496 |
| 9modern | 650 | Sakaguchi, Takuya (1456) | Lost 1-2 | -181478 |
| average opponent: 1475record: 4-5 | new rating: 1478 | |||
| Grand Prix Kobe 2015 (BFZ standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 514 | Otsuka, Tomohito (1541) | Lost 0-2 | -171483 |
| 2standard | 636 | Akimoto, Daichi (1482) | Won 2-0 | +181501 |
| 3standard | 830 | Itazu, Boram (1484) | Won 2-1 | +171518 |
| 4standard | 509 | Imaoka, Syoichi (1516) | Lost 0-2 | -181500 |
| 5standard | 652 | Arase, Kousuke (1499) | Won 2-1 | +181518 |
| 6standard | 433 | Imanaka, Kouta (1513) | Lost 1-2 | -181500 |
| 7standard | 570 | Suzuki, Kazuto (1497) | Won 2-0 | +181518 |
| 8standard | 492 | Schwenk, Ryan (1305) | Lost 1-2 | -221496 |
| average opponent: 1480record: 4-4 | new rating: 1496 | |||