Ishii, Kenta
Current rating: 1563
Record: 17-14-2
| Grand Prix Chiba 2018 (M19 limited) | starting rating: 1516 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 154 | Koide, Yukua (1538) | Won 2-0 | +191535 |
| 2sealed | 185 | Ishikami, Naotaka (1668) | Lost 0-2 | -161519 |
| 3sealed | 883 | Yamaji, Shunichi (1578) | Won 2-1 | +191538 |
| 4sealed | 460 | Tanaka, Takuya (1551) | Won 2-1 | +191557 |
| 5sealed | 293 | Wachigai, Hirotaka (1469) | Lost 1-2 | -201537 |
| 6sealed | 414 | Matsumoto, Akihiro (1771) | Won 2-1 | +221559 |
| 7sealed | 360 | Matsushika, Kohei (1525) | Won 2-0 | +181577 |
| 8sealed | 209 | Utsunomiya, Takumi (1817) | Lost 0-2 | -141563 |
| top | average opponent: 1615record: 5-3 | new rating: 1563 | ||
| Grand Prix Tokyo 2016 (SOI standard) | starting rating: 1535 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 430 | Ohara, Tetsuya (1467) | Won 2-1 | +171552 |
| 2standard | 144 | Kajiwara, Shou (1637) | Won 2-1 | +191571 |
| 3standard | 690 | Garano, Bryan (1540) | Lost 1-2 | -181553 |
| 4standard | 502 | Shibata, Syouhei (1529) | Lost 1-2 | -191534 |
| 5standard | 793 | Nagato, Yusuke (1517) | Won 2-1 | +181552 |
| 6standard | 522 | Kidera, Seita (1627) | Lost 1-2 | -171535 |
| 7standard | 817 | Nagami, Takahiro (1496) | Lost 1-2 | -191516 |
| top | average opponent: 1545record: 3-4 | new rating: 1516 | ||
| Grand Prix Chiba 2015 (MM2 limited) | starting rating: 1530 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 2010 | Takenaga, Tomohiro (1657) | Lost 0-2 | -161514 |
| 4sealed | 2117 | Katou, Takeru (1489) | Won 2-1 | +181532 |
| 5sealed | 2139 | Kouyama, Shinji (1566) | Lost 0-2 | -181514 |
| 6sealed | 2261 | Kamiyama, Daiki (1507) | Won 2-0 | +181532 |
| 7sealed | 2147 | Inazawa, Ryo (1667) | Won 2-0 | +211553 |
| 8sealed | 2119 | Noto, Jun (1555) | Lost 1-2 | -181535 |
| top | average opponent: 1573record: 3-3 | new rating: 1535 | ||
| Grand Prix Shizuoka 2015 (KTK limited) | starting rating: 1512 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 286 | Iwasaki, Junya (1519) | Won 2-1 | +181530 |
| 2sealed | 41 | Koseki, Kouta (1557) | Lost 0-2 | -181512 |
| 3sealed | 425 | Fujii, Dai (1647) | Draw 1-1 | +31515 |
| 4sealed | 338 | Kobayashi, Takuto (1585) | Won 2-1 | +191534 |
| 5sealed | 223 | Ito, Yuuko (1321) | Won 2-1 | +141548 |
| 6sealed | 147 | Yamada, Shuusuke (1533) | Lost 1-2 | -181530 |
| top | average opponent: 1527record: 3-2-1 | new rating: 1530 | ||
| Grand Prix Kobe 2014 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 377 | Sakata, Eiji (1500) | Lost 1-2 | -181482 |
| 2modern | 347 | Konno, Tomoaki (1465) | Lost 1-2 | -181464 |
| 3modern | 539 | Takamisawa, Yuki (1464) | Won 2-0 | +181482 |
| 4modern | 464 | Mochizuki, Katsuhiko (1424) | Draw 1-1 | -11481 |
| 5modern | 437 | Itou, Nobuaki (1432) | Won 2-0 | +171498 |
| 6modern | 368 | Yamamura, Mitsutoshi (1270) | Won 2-1 | +141512 |
| top | average opponent: 1426record: 3-2-1 | new rating: 1512 | ||