Itou, Ren
Current rating: 1505
| Grand Prix Chiba 2016 (legacy) | starting rating: 1505 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 301 | Shiohata, Tei (1500) | Won 2-0 | +181523 |
| 2legacy | 505 | Tomoki, Kitamura (1462) | Won 2-0 | +171540 |
| 3legacy | 551 | Tsukuda, Takuya (1566) | Lost 0-2 | -171523 |
| 4legacy | 409 | Miyata, Daithi (1580) | Lost 0-2 | -171506 |
| 5legacy | 666 | Matsumoto, Syouta (1499) | Won 2-0 | +181524 |
| 6legacy | 463 | Tsuruoka, Hiroaki (1574) | Won 2-0 | +191543 |
| 7legacy | 260 | Hirano, Masayuki (1487) | Lost 0-2 | -191524 |
| 8legacy | 630 | Ooyagi, Tetsuya (1515) | Lost 0-2 | -191505 |
| top | average opponent: 1523record: 4-4 | new rating: 1505 | ||
| Grand Prix Chiba 2015 (MM2 limited) | starting rating: 1521 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 2021 | Yamazaki, Hiroyuki (1577) | Lost 0-2 | -171504 |
| 2sealed | 2286 | Nakazawa, Shinya (1482) | Won 2-1 | +171521 |
| 3sealed | 2284 | Oiso, Kenji (1638) | Lost 1-2 | -161505 |
| top | average opponent: 1566record: 1-2 | new rating: 1505 | ||
| Grand Prix Kyoto 2015 (legacy) | starting rating: 1501 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 241 | Agyekum, Paul (1500) | Won 2-1 | +181519 |
| 2legacy | 68 | Suzuki, Marin (1451) | Won 2-1 | +171536 |
| 3legacy | 40 | Nose, Koji (1805) | Lost 1-2 | -131523 |
| 4legacy | 142 | Tomimatsu, Yosihumi (1498) | Won 2-1 | +171540 |
| 5legacy | 203 | Nakatsubo, Yoshiaki (1541) | Won 2-0 | +181558 |
| 6legacy | 55 | Yamaguchi, Takao (1422) | Lost 1-2 | -201538 |
| 7legacy | 118 | Furuya, Youhei (1605) | Lost 1-2 | -171521 |
| 8legacy | 158 | Matsumura, Takehiko (1492) | Lost 1-2 | -181503 |
| 9legacy | 189 | Goubara, Tetsuya (1506) | Won 2-1 | +181521 |
| top | average opponent: 1535record: 5-4 | new rating: 1521 | ||
| Grand Prix Nagoya 2012 (RTR standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 184 | Mitsukuchi, Takeshi (1500) | Won 2-0 | +181518 |
| 2standard | 162 | Sando, Masao (1606) | Lost 1-2 | -161502 |
| 3standard | 452 | Minobe, Yoshihiro (1540) | Won 2-1 | +181520 |
| 4standard | 266 | Suzuki, Mikito (1446) | Won 2-1 | +171537 |
| 5standard | 300 | Takahashi, Yusuke (1534) | Lost 1-2 | -181519 |
| 6standard | 356 | Takahashi, Kei (1544) | Lost 1-2 | -181501 |
| top | average opponent: 1528record: 3-3 | new rating: 1501 | ||