Iwasa, Takuma
Current rating: 1609
Record: 14-8-1
| Grand Prix Yokohama 2019 (modern) | starting rating: 1627 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 564 | Yazawa, Hiroaki (1472) | Won 2-1 | +151642 |
| 2modern | 429 | Shinbo, Soutaro (1445) | Lost 0-2 | -221620 |
| 3modern | 768 | Fukuda, Masahiro (1505) | Lost 0-2 | -201600 |
| 4modern | 1010 | Saito, Tomohiro (1531) | Won 2-0 | +171617 |
| 5modern | 678 | Basallo III, Ricardo (1556) | Lost 0-2 | -191598 |
| 6modern | 744 | Kuribayashi, Takamasa (1453) | Won 2-0 | +151613 |
| 7modern | 718 | Nakamura, Yuta3027 (1477) | Won 2-1 | +161629 |
| 8modern | 395 | Nakajima, Ryo (1527) | Lost 1-2 | -201609 |
| average opponent: 1496record: 4-4 | new rating: 1609 | |||
| Grand Prix Kobe 2017 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 653 | McGlashan, Kevin (1481) | Draw 1-1 | 01500 |
| 2modern | 630 | Ohnishi, Jyunpei (1675) | Won 2-1 | +211521 |
| 3modern | 689 | Ishikawa, Masami (1636) | Won 2-0 | +201541 |
| 4modern | 359 | Shiraishi, Ryuji (1502) | Won 2-0 | +171558 |
| 5modern | 177 | Yamagata, Hiroki (1573) | Lost 0-2 | -181540 |
| 6modern | 412 | Nishihara, Hiroki (1615) | Won 2-0 | +201560 |
| 7modern | 248 | Tsurusawa, Kenta (1552) | Won 2-0 | +181578 |
| 8modern | 141 | Fujii, Toshikazu (1633) | Won 2-0 | +191597 |
| 9modern | 85 | Iwasawa, Fumiya (1880) | Lost 0-2 | -131584 |
| 10modern | 182 | Tsukada, Hiroshi (1426) | Won 2-0 | +151599 |
| 11modern | 114 | Imaizumi, Riku (1575) | Lost 1-2 | -191580 |
| 12modern | 203 | Nakai, Sunao (1921) | Won 2-1 | +241604 |
| 13modern | 137 | Kawaguchi, Takashi (1741) | Won 2-0 | +211625 |
| 14modern | 89 | Lee, Chao Yi (1642) | Lost 0-2 | -181607 |
| 15modern | 136 | Zhao, Tianyu (1679) | Won 2-0 | +201627 |
| average opponent: 1635record: 10-4-1 | new rating: 1627 | |||