Ishida, Koji
Current rating: 1482
Record: 6-7
| Grand Prix Kobe 2015 (BFZ standard) | starting rating: 1499 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 778 | Yabe, Tosikazu (1502) | Won 2-0 | +181517 |
| 2standard | 231 | Ebitani, Keisuke (1704) | Lost 0-2 | -151502 |
| 3standard | 852 | Shimizu, Yusuke (1456) | Lost 0-2 | -191483 |
| 4standard | 1034 | Ieda, Toma (1488) | Lost 0-2 | -181465 |
| 5standard | 992 | Uraya, Masamitsu (1412) | Won 2-0 | +171482 |
| 6standard | 884 | Itou, Masahito (1504) | Lost 1-2 | -171465 |
| 7standard | 766 | Matsuda, Kenta (1434) | Won 2-0 | +171482 |
| 8standard | 594 | Gou, Makoto (1488) | Lost 1-2 | -181464 |
| 9standard | 530 | Suzuki, Uta (1443) | Won 2-1 | +181482 |
| average opponent: 1492record: 4-5 | new rating: 1482 | |||
| Grand Prix Shizuoka 2015 (KTK limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 773 | Suzuki, Akira (1600) | Lost 0-2 | -161484 |
| 2sealed | 955 | Sakata, Akinori (1251) | Won 2-1 | +141498 |
| 3sealed | 929 | Igarashi, Takuma (1500) | Won 2-0 | +181516 |
| 4sealed | 774 | Fukushi, Kyouhei (1571) | Lost 1-2 | -171499 |
| average opponent: 1480record: 2-2 | new rating: 1499 | |||