Iwata, Ayumu
Current rating: 1466
| Grand Prix Kyoto 2017 (HOU limited) | starting rating: 1499 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 366 | Kurauchi, Ryosuke (1445) | Won 2-1 | +171516 |
| 2sealed | 217 | Komiyama, Kouhei (1491) | Lost 1-2 | -181498 |
| 3sealed | 721 | Yamaguchi, Hiroshi (1528) | Lost 1-2 | -171481 |
| 4sealed | 914 | Watanabe, Yusuke (1599) | Won 2-0 | +201501 |
| 5sealed | 645 | Yoshizawa, Kohei (1574) | Lost 1-2 | -171484 |
| 6sealed | 909 | Oda, Ryota (1497) | Lost 1-2 | -181466 |
| top | average opponent: 1522record: 2-4 | new rating: 1466 | ||
| Grand Prix Nagoya 2016 (OGW limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 260 | Kagoi, Yuki (1364) | Won 2-0 | +151515 |
| 2sealed | 373 | Nozaki, Taiki (1523) | Won 2-1 | +181533 |
| 3sealed | 518 | Yamato, Tsuguyoshi (1506) | Lost 0-2 | -181515 |
| 4sealed | 449 | Yoon, Sang-Woong (1605) | Lost 0-2 | -171498 |
| 5sealed | 755 | Ueda, Yushi (1365) | Won 2-0 | +161514 |
| 6sealed | 748 | Yamaguchi, Hiroshi2043 (1571) | Won 2-0 | +191533 |
| 7sealed | 454 | Furuya, Youhei (1668) | Lost 0-2 | -161517 |
| 8sealed | 677 | Hangyo, Tatsuya (1516) | Lost 0-2 | -181499 |
| top | average opponent: 1515record: 4-4 | new rating: 1499 | ||
| Grand Prix Kobe 2015 (BFZ standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 144 | Kamata, Toshihiko (1475) | Lost 1-2 | -181482 |
| 2standard | 626 | Nakakouji, Takuya (1482) | Won 2-1 | +181500 |
| 3standard | 851 | Bass, Dan (1504) | Won 2-1 | +181518 |
| 4standard | 512 | Noguchi, Takahiro (1515) | Lost 0-2 | -181500 |
| top | average opponent: 1494record: 2-2 | new rating: 1500 | ||