Iwamura, Keisuke
Current rating: 1521
Record: 9-8
| Grand Prix Chiba 2016 (legacy) | starting rating: 1499 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 493 | Hayashi, Hisaaki (1484) | Lost 0-2 | -181481 |
| 2legacy | 716 | Saitou, Tatsuya (1482) | Won 2-1 | +181499 |
| 3legacy | 751 | Kato, Akito (1500) | Won 2-0 | +181517 |
| 4legacy | 450 | Nunotani, Kousuke (1484) | Lost 1-2 | -191498 |
| 5legacy | 848 | Maki, Shuuichirou (1501) | Won 2-0 | +181516 |
| 6legacy | 631 | Miki, Takashi (1494) | Lost 0-2 | -181498 |
| 7legacy | 810 | Kimonji, Hiroki (1636) | Won 2-0 | +201518 |
| 8legacy | 484 | Yamazaki, Yuuki (1726) | Won 2-0 | +221540 |
| 9legacy | 507 | Nishikawa, Seigo (1509) | Lost 0-2 | -191521 |
| average opponent: 1535record: 5-4 | new rating: 1521 | |||
| Grand Prix Kobe 2014 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 239 | Minamoto, Teruaki (1507) | Lost 1-2 | -181482 |
| 2modern | 350 | Minagawa, Ryo (1480) | Won 2-0 | +181500 |
| 3modern | 270 | Mukuno, Yuuji (1661) | Lost 1-2 | -151485 |
| 4modern | 453 | Ueda, Atsushi (1446) | Won 2-0 | +171502 |
| 5modern | 370 | Kouno, Takuya (1506) | Lost 0-2 | -181484 |
| 6modern | 452 | Ohmoto, Masaya (1385) | Won 2-0 | +171501 |
| 7modern | 338 | Fujimoto, Hisashi (1501) | Won 2-0 | +181519 |
| 8modern | 238 | Izumida, Takuma (1426) | Lost 1-2 | -201499 |
| average opponent: 1489record: 4-4 | new rating: 1499 | |||