Iwata, Kazuya
Current rating: 1550
Record: 7-4-1
| Grand Prix Nagoya 2004 (5DN standard) | starting rating: 1518 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 168 | Sei, Shunsuke (1449) | Won 2-0 | +171535 |
| 2standard | 9 | Yasukawa, Kazuhide (1423) | Won 2-1 | +161551 |
| 3standard | 46 | Tanii, Yuusuke (1499) | Lost 0-2 | -191532 |
| 4standard | 157 | Nagai, Takahiro (1517) | Won 2-0 | +171549 |
| 5standard | 167 | Kawanishi, Mitsunobu (1574) | Lost 1-2 | -171532 |
| 6standard | 160 | Yoshikuni, Mitsuyuki (1560) | Won 2-0 | +181550 |
| 7standard | 181 | Okamura, Shinya (1456) | Won 2-0 | +171567 |
| 8standard | 95 | Bandou, Junichirou (1637) | Lost 0-2 | -171550 |
| average opponent: 1514record: 5-3 | new rating: 1550 | |||
| Grand Prix Shizuoka 2001 (ODY limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 47 | Yashiro, Takuya (1500) | Lost 0-2 | -181482 |
| 2sealed | 272 | Takamiya, Seiji (1482) | Won 2-0 | +181500 |
| 3sealed | 218 | Kishida, Hirokazu (1500) | Draw 1-1 | 01500 |
| 4sealed | 208 | Kimu, Chunho (1500) | Won 2-0 | +181518 |
| average opponent: 1495record: 2-1-1 | new rating: 1518 | |||