Iwagaki, Takumi
Current rating: 1485
Record: 6-7
| Grand Prix Chiba 2016 (legacy) | starting rating: 1483 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 23 | Manabe, Shun (1442) | Lost 0-2 | -191464 |
| 2legacy | 799 | Tanaka, Yuta (1484) | Won 2-1 | +191483 |
| 3legacy | 632 | Yahagi, Shuhei (1473) | Won 2-0 | +171500 |
| 4legacy | 628 | Komatsu, Isamu (1557) | Lost 0-2 | -171483 |
| 5legacy | 887 | Schiber, Christopher (1573) | Lost 0-2 | -161467 |
| 6legacy | 974 | Asazuma, Haruki (1432) | Won 2-0 | +171484 |
| 7legacy | 656 | Furusawa, Reona (1469) | Won 2-0 | +181502 |
| 8legacy | 429 | Fujiwara, Takahito (1558) | Lost 0-2 | -171485 |
| average opponent: 1499record: 4-4 | new rating: 1485 | |||
| Grand Prix Chiba 2015 (MM2 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 987 | Sakurai, Tsuyoshi (1500) | Won 2-0 | +181518 |
| 2sealed | 1102 | Kato, Taichirou (1518) | Lost 1-2 | -181500 |
| 3sealed | 1259 | Suzuki, Keisuke2609 (1500) | Lost 0-2 | -181482 |
| 4sealed | 1170 | Nakajima, Syuro (1467) | Won 2-0 | +181500 |
| 5sealed | 1157 | Takaoka, Yusuke (1564) | Lost 0-2 | -171483 |
| average opponent: 1510record: 2-3 | new rating: 1483 | |||