Iwata, Noriaki
Current rating: 1459
| Grand Prix Nagoya 2019 (ELD standard) | starting rating: 1485 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 174 | Nishimura, Kazuhiro (1567) | Lost 0-2 | -171468 |
| 2standard | 460 | Morita, Daishi (1517) | Won 2-0 | +191487 |
| 3standard | 533 | Takeshita, Ryo (1626) | Lost 1-2 | -161471 |
| 4standard | 727 | Koshimoto, Haruki (1490) | Won 2-1 | +191490 |
| 5standard | 531 | Fujii, Kohei (1695) | Lost 1-2 | -151475 |
| 6standard | 619 | Inoue, Ikuma (1485) | Won 2-0 | +191494 |
| 7standard | 471 | Oikawa, Hiroaki (1464) | Lost 0-2 | -191475 |
| 8standard | 456 | Takahashi, Osamu (1553) | Lost 0-2 | -161459 |
| top | average opponent: 1550record: 3-5 | new rating: 1459 | ||
| Grand Prix Chiba 2019 (M20 limited) | starting rating: 1485 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 141 | Li, Mofei (1500) | Won 2-1 | +181503 |
| 2sealed | 342 | Soga, Junya (1687) | Lost 0-2 | -151488 |
| 3sealed | 882 | Kaga, Hiroyuki (1525) | Won 2-0 | +191507 |
| 4sealed | 466 | Hayashi, Nobuhiko (1430) | Won 2-1 | +161523 |
| 5sealed | 170 | Ideguchi, Yasuhiro (1384) | Lost 0-2 | -201503 |
| 6sealed | 635 | Nakamura, Kota (1358) | Won 2-0 | +151518 |
| 7sealed | 303 | Nakajima, Chikara (1739) | Lost 1-2 | -141504 |
| 8sealed | 394 | Kagawa, Hajime (1410) | Lost 1-2 | -191485 |
| top | average opponent: 1504record: 4-4 | new rating: 1485 | ||
| Grand Prix Kyoto 2019 (RNA standard) | starting rating: 1503 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 181 | Nakamura, Taro (1236) | Won 2-1 | +131516 |
| 2standard | 403 | Ikeda, Masahito (1586) | Lost 0-2 | -161500 |
| 3standard | 826 | Shirasaka, Satoshi (1451) | Lost 1-2 | -191481 |
| 4standard | 717 | Yajima, Tatsuaki (1646) | Lost 1-2 | -151466 |
| 5standard | 894 | Ohkuma, Atushi (1511) | Won 2-0 | +191485 |
| top | average opponent: 1486record: 2-3 | new rating: 1485 | ||
| Grand Prix Kyoto 2003 (LGN limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 13 | Maruyama, Hiromi (1465) | Won 2-1 | +171517 |
| 2sealed | 80 | Ishihara, Jun (1781) | Won 2-0 | +231540 |
| 3sealed | 97 | Sakai, Kentaro (1501) | Lost 0-2 | -191521 |
| 4sealed | 117 | Imori, Takahiro (1520) | Lost 1-2 | -181503 |
| 5sealed | 191 | Ito, Yuichi (1561) | Won 2-1 | +191522 |
| 6sealed | 121 | Ohnishi, Jyunpei (1435) | Won 2-0 | +171539 |
| 7sealed | 96 | Ooura, Shotaro (1526) | Lost 0-2 | -181521 |
| 8sealed | 75 | Kawai, Kenta (1550) | Lost 0-2 | -181503 |
| top | average opponent: 1543record: 4-4 | new rating: 1503 | ||