Iwamoto, Reo
Current rating: 1586
| Grand Prix Kobe 2015 (BFZ standard) | starting rating: 1613 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 223 | Ogaki, Takao (1530) | Won 2-0 | +161629 |
| 2standard | 291 | Shimizu, Yousuke (1644) | Won 2-1 | +181647 |
| 3standard | 514 | Nagao, Kengo (1777) | Lost 1-2 | -151632 |
| 4standard | 737 | Tawada, Naoto (1483) | Lost 0-2 | -211611 |
| 5standard | 855 | Ookura, Haruka (1581) | Lost 1-2 | -181593 |
| 6standard | 875 | Isurugi, Hideyuki (1488) | Lost 0-2 | -201573 |
| 7standard | 752 | Odachi, Takuhei (1474) | Lost 1-2 | -201553 |
| 8standard | 681 | Kozuka, Takashi (1477) | Won 2-0 | +161569 |
| 9standard | 523 | Kanagawa, Shinya (1466) | Won 2-0 | +171586 |
| top | average opponent: 1547record: 4-5 | new rating: 1586 | ||
| Grand Prix Yokohama 2013 (GTC limited) | starting rating: 1608 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 1067 | K., Tetsuhiro (1500) | Won 2-1 | +161624 |
| 2sealed | 823 | Nikkuni, Fumihito (1627) | Lost 0-2 | -181606 |
| 3sealed | 912 | Ohata, Hiroyuki (1496) | Won 2-0 | +161622 |
| 4sealed | 829 | Goto, Takashi (1463) | Lost 0-2 | -211601 |
| 5sealed | 959 | Murakami, Yamato (1502) | Lost 1-2 | -191582 |
| 6sealed | 975 | Whittaker, Stephen (1502) | Won 2-1 | +161598 |
| 7sealed | 902 | Nogami, Daisuke (1592) | Lost 0-2 | -181580 |
| 8sealed | 1044 | Shu, Peter (1539) | Won 2-0 | +171597 |
| 9sealed | 981 | Takahashi, Akihiro (1455) | Won 2-1 | +161613 |
| top | average opponent: 1519record: 5-4 | new rating: 1613 | ||
| Grand Prix Nagoya 2012 (RTR standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 71 | Takahashi, Tomoo (1397) | Won 2-0 | +161516 |
| 2standard | 227 | Oohashi, Keisuke (1522) | Won 2-0 | +181534 |
| 3standard | 197 | Tokura, Mikihiro (1453) | Won 2-0 | +171551 |
| 4standard | 74 | Shirakihara, Ryuuichi (1523) | Lost 0-2 | -191532 |
| 5standard | 250 | Ooshima, Shun (1502) | Won 2-0 | +181550 |
| 6standard | 208 | Akaike, Yo (1648) | Won 2-0 | +191569 |
| 7standard | 96 | Mizuno, Kunihiko (1531) | Won 2-1 | +181587 |
| 8standard | 57 | Yohara, Tosho (1547) | Won 2-0 | +171604 |
| 9standard | 19 | Saito, Takaya (1746) | Lost 0-2 | -151589 |
| 10standard | 107 | Jung, Dae-woong (1539) | Lost 0-2 | -191570 |
| 11standard | 84 | Kato, Akinori (1513) | Won 2-1 | +171587 |
| 12standard | 63 | Maeno, Kazuha (1611) | Won 2-0 | +181605 |
| 13standard | 39 | Watanabe, Takanori (1659) | Won 0-0 | +191624 |
| 14standard | 24 | Nishizawa, Yasuhide (1744) | Lost 0-2 | -161608 |
| 15standard | 39 | Ishikawa, Shou (1602) | Won 2-1 | +181626 |
| 16standard | 37 | Kawabata, Ryosuke (1625) | Lost 0-2 | -181608 |
| top | average opponent: 1573record: 11-5 | new rating: 1608 | ||