Iwata, Riki
Current rating: 1396
Record: 5-11-2
| Grand Prix Nagoya 2016 (OGW limited) | starting rating: 1419 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 24 | Uchida, Kousuke (1500) | Lost 0-2 | -171402 |
| 2sealed | 768 | Tsuchiya, Ryuichi (1496) | Won 2-0 | +201422 |
| 3sealed | 789 | Mizutani, Yuki (1465) | Lost 1-2 | -171405 |
| 4sealed | 1102 | Taniguchi, Tomohiro (1385) | Won 2-0 | +171422 |
| 5sealed | 691 | Yamaura, Tatsuya (1502) | Lost 0-2 | -161406 |
| 6sealed | 904 | Ogawa, Takumi (1437) | Won 2-0 | +181424 |
| 7sealed | 605 | Kozakai, Yukio (1728) | Draw 1-1 | +61430 |
| 8sealed | 709 | Chan, Fung Shun (1555) | Lost 1-2 | -161414 |
| 9sealed | 654 | Zhang, Yi 1971 (1423) | Lost 1-2 | -181396 |
| average opponent: 1499record: 3-5-1 | new rating: 1396 | |||
| Grand Prix Kobe 2015 (BFZ standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 175 | Nishio, Hiroki (1465) | Lost 0-2 | -191481 |
| 2standard | 762 | Yamamoto, Shintaro (1484) | Lost 0-2 | -181463 |
| 3standard | 1073 | Takemoto, Shingo (1446) | Draw 1-1 | 01463 |
| 4standard | 1133 | Nakanishi, Kota (1415) | Won 2-1 | +171480 |
| 5standard | 965 | Yoshimura, Motoki (1187) | Lost 0-2 | -231457 |
| 6standard | 924 | Seno, Takuto (1457) | Lost 0-2 | -181439 |
| 7standard | 799 | Iwasaki, Mitsumasa (1445) | Won 2-1 | +181457 |
| 8standard | 652 | Hanaoka, Hiroaki (1348) | Lost 0-2 | -201437 |
| 9standard | 560 | Yamaguchi, Kyohei (1405) | Lost 1-2 | -181419 |
| average opponent: 1406record: 2-6-1 | new rating: 1419 | |||