Iwamoto, Gaku
Current rating: 1469
Record: 1-3
| Grand Prix Yokohama 2013 (GTC limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 791 | Takehana, Yuki (1412) | Won 2-0 | +161516 |
| 2sealed | 738 | Tamura, Ryo (1879) | Lost 1-2 | -111505 |
| 3sealed | 1043 | Matsubara, Tohru (1538) | Lost 1-2 | -181487 |
| 4sealed | 1002 | Yanagawa, Tomoyuki (1445) | Lost 1-2 | -181469 |
| average opponent: 1569record: 1-3 | new rating: 1469 | |||