Ishikawa, Tomohiko
Current rating: 1444
Record: 5-8
| Grand Prix Shizuoka 2018 (standard) (GRN standard) | starting rating: 1478 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 659 | Niwa, Keita (1500) | Lost 0-2 | -171461 |
| 2standard | 910 | Minotani, Jun (1597) | Lost 1-2 | -161445 |
| 3standard | 1081 | Sato, Kazuhito (1372) | Won 2-1 | +171462 |
| 4standard | 889 | Mingyi, Lin (1467) | Lost 0-2 | -181444 |
| average opponent: 1484record: 1-3 | new rating: 1444 | |||
| Grand Prix Tokyo 2016 (SOI standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 209 | Shiosaki, Tatsuya (1500) | Won 2-0 | +181518 |
| 2standard | 741 | Ogawa, Yoei (1499) | Lost 0-2 | -181500 |
| 3standard | 1375 | Mochizuki, Katsuhiko (1331) | Won 2-0 | +151515 |
| 4standard | 960 | Chatani, Yasutomo (1469) | Won 2-0 | +171532 |
| 5standard | 568 | Miyawaki, Takeshi (1646) | Lost 1-2 | -161516 |
| 6standard | 872 | Fukuda, Tatsuhiro (1525) | Lost 0-2 | -181498 |
| 7standard | 954 | Kanekiyo, Ryusuke (1316) | Won 2-1 | +151513 |
| 8standard | 833 | Murahata, Hiroyuki (1522) | Lost 0-2 | -181495 |
| 9standard | 783 | Koseki, Daisuke (1566) | Lost 1-2 | -171478 |
| average opponent: 1486record: 4-5 | new rating: 1478 | |||