Izushi, Kazuya
Current rating: 1572
| Grand Prix Chiba 2018 (M19 limited) | starting rating: 1576 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 808 | Sasaki, Shun (1386) | Won 2-0 | +141590 |
| 2sealed | 510 | Samejima, Ippei (1751) | Won 2-0 | +211611 |
| 3sealed | 250 | Tsukamoto, Takahiro (1501) | Draw 1-1 | -21609 |
| 4sealed | 273 | Wang, Arthur (1629) | Lost 1-2 | -181591 |
| 5sealed | 523 | Soma, Kosuke (1514) | Lost 1-2 | -191572 |
| top | average opponent: 1556record: 2-2-1 | new rating: 1572 | ||
| Grand Prix Shizuoka 2017 (AER standard) | starting rating: 1581 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 190 | Ito, Kensuke (1453) | Won 2-0 | +161597 |
| 2standard | 554 | Nishikawa, Kazuki (1523) | Lost 0-2 | -201577 |
| 3standard | 1084 | Kagawa, Hajime (1505) | Won 2-0 | +171594 |
| 4standard | 763 | Yoshimura, Asuka (1519) | Won 2-1 | +171611 |
| 5standard | 305 | Jinno, Kaname (1505) | Won 2-0 | +161627 |
| 6standard | 169 | Ehara, Makoto (1518) | Lost 0-2 | -201607 |
| 7standard | 502 | Ou, Kaitou (1885) | Lost 1-2 | -131594 |
| 8standard | 499 | Yamamoto, Takahiro (1663) | Won 2-1 | +191613 |
| 9standard | 365 | Takeuchi, Shuuji (1557) | Won 2-1 | +171630 |
| 10standard | 274 | Shiraishi, Masaharu (1699) | Lost 0-2 | -171613 |
| 11standard | 307 | Iso, Toshiharu (1524) | Lost 0-2 | -191594 |
| 12standard | 351 | Terada, Shuuhei (1589) | Lost 1-2 | -181576 |
| top | average opponent: 1578record: 6-6 | new rating: 1576 | ||
| Grand Prix Chiba 2016 (legacy) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 269 | Yamada, Shun (1447) | Won 2-0 | +171517 |
| 2legacy | 390 | Sumida, Norihito (1518) | Lost 1-2 | -181499 |
| 3legacy | 912 | Watanabe, Kazutaka (1483) | Won 2-1 | +181517 |
| 4legacy | 486 | Mochiki, Kazuto (1754) | Won 2-0 | +221539 |
| 5legacy | 262 | Tsuruhara, Takayuki (1536) | Lost 0-2 | -181521 |
| 6legacy | 635 | Suzuki, Kyou (1762) | Won 2-0 | +221543 |
| 7legacy | 504 | Takahashi, Eiji (1502) | Won 2-0 | +181561 |
| 8legacy | 146 | Hayashi, Takatomo (1514) | Lost 0-2 | -191542 |
| 9legacy | 275 | Mendero Jr, Samuel (1535) | Won 2-0 | +181560 |
| 10legacy | 279 | Oyama, Takumi (1530) | Won 2-1 | +171577 |
| 11legacy | 125 | Saeki, Tadatoshi (1524) | Draw 1-1 | -11576 |
| 12legacy | 186 | Yamato, Naoki (1595) | Won 2-0 | +181594 |
| 13legacy | 119 | Piedra, Christopher (1751) | Lost 0-2 | -151579 |
| 14legacy | 175 | Tamura, Kenji (1596) | Won 2-0 | +191598 |
| 15legacy | 128 | Nakada, Ryo (1678) | Lost 0-2 | -171581 |
| top | average opponent: 1582record: 9-5-1 | new rating: 1581 | ||