Itou, Daiki 9873
Current rating: 1525
Record: 15-16-1
| Grand Prix Chiba 2019 (M20 limited) | starting rating: 1476 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 203 | Horikoshi, Takayuki (1577) | Lost 0-2 | -161460 |
| 4sealed | 665 | Jindalertudomdee, Jira (1472) | Won 2-1 | +181478 |
| 5sealed | 284 | Nomura, Hiroshi (1564) | Won 2-0 | +201498 |
| 6sealed | 134 | Nishikawa, Yosuke (1551) | Lost 1-2 | -171481 |
| 7sealed | 331 | Kumagai, Riku (2101) | Won 2-1 | +281509 |
| 8sealed | 341 | Nakayama, Ian (1590) | Won 2-0 | +191528 |
| 9sealed | 114 | Takawashi, Kenji (1557) | Lost 1-2 | -171511 |
| 10draft | 96 | Inoue, Kohey (1618) | Won 2-1 | +191530 |
| 11draft | 211 | Kuroiwa, Satoshi (1627) | Lost 0-2 | -161514 |
| 12draft | 138 | Kitamoto, Hiroki (1899) | Lost 1-2 | -111503 |
| 13draft | 195 | Satou, Yoshinobu (1468) | Won 2-1 | +171520 |
| 14draft | 79 | Nakajima, Ryo (1540) | Won 2-1 | +191539 |
| 15draft | 97 | Nagao, Yasutaka (1792) | Lost 0-2 | -141525 |
| top | average opponent: 1643record: 7-6 | new rating: 1525 | ||
| Grand Prix Yokohama 2019 (modern) | starting rating: 1510 | |||
| round | table | opponent (rating) | result | Δrating |
| 3modern | 160 | Fukui, Yui (1486) | Lost 0-2 | -191491 |
| 4modern | 339 | Saji, Ryoichi (1518) | Won 2-1 | +191510 |
| 5modern | 158 | Yoshino, Kohei (1698) | Lost 1-2 | -151495 |
| 6modern | 457 | Ito, Takahiro (1435) | Lost 1-2 | -191476 |
| top | average opponent: 1534record: 1-3 | new rating: 1476 | ||
| Grand Prix Shizuoka 2018 (legacy) (legacy) | starting rating: 1504 | |||
| round | table | opponent (rating) | result | Δrating |
| 2legacy | 150 | Murakami, Yuuki (1585) | Lost 0-2 | -171487 |
| 3legacy | 324 | Shimamura, Jumpei (1449) | Won 2-1 | +181505 |
| 4legacy | 384 | Sano, Masaya (1387) | Draw 1-1 | -21503 |
| 5legacy | 292 | Ikawa, Yoshihiko (1880) | Lost 0-2 | -121491 |
| 6legacy | 408 | Regalado, Mikhail (1451) | Lost 0-2 | -191472 |
| 7legacy | 430 | Tokuda, Shin'Yuki (1498) | Won 2-1 | +191491 |
| 8legacy | 332 | Ohtsubo, Masashi (1531) | Won 2-0 | +191510 |
| top | average opponent: 1540record: 3-3-1 | new rating: 1510 | ||
| Grand Prix Chiba 2018 (M19 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 687 | Tedori, Kota (1615) | Won 2-0 | +201520 |
| 2sealed | 56 | Uzawa, Yuya (1483) | Lost 1-2 | -191501 |
| 3sealed | 735 | Shiohata, Ryosuke (1424) | Won 2-0 | +171518 |
| 4sealed | 710 | Sakamoto, Ikki (1517) | Won 2-1 | +181536 |
| 5sealed | 261 | Miyagishi, Kohei (1521) | Lost 0-2 | -181518 |
| 6sealed | 454 | Ohki, Tatsuhiko (1854) | Won 2-0 | +241542 |
| 7sealed | 266 | Nakagawa, Yuki (1545) | Lost 0-2 | -181524 |
| 8sealed | 474 | Fusegi, Takanori (1426) | Lost 0-2 | -201504 |
| top | average opponent: 1548record: 4-4 | new rating: 1504 | ||