Ishikawa, Takuma 8417
Current rating: 1495
| Grand Prix Kobe 2017 (modern) | starting rating: 1508 | |||
| round | table | opponent (rating) | result | Δrating |
| 3modern | 487 | Kawakami, Takehito (1802) | Lost 0-2 | -131495 |
| 4modern | 454 | Hiroi, Yuta (1369) | Won 2-1 | +161511 |
| 5modern | 434 | Kositaporn, Nonthakorn (1581) | Lost 0-2 | -171494 |
| 6modern | 655 | Yoshida, Kazuaki (1515) | Won 2-0 | +191513 |
| 7modern | 475 | Yamada, Michihiro (1487) | Lost 0-2 | -191494 |
| 8modern | 506 | Suezawa, Takumi (1523) | Won 2-1 | +191513 |
| 9modern | 360 | Kihira, Tomoya (1513) | Lost 0-2 | -181495 |
| top | average opponent: 1541record: 3-4 | new rating: 1495 | ||
| Grand Prix Chiba 2015 (MM2 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 43 | Toyohara, Eisuke (1443) | Lost 0-2 | -191481 |
| 3sealed | 440 | Akashige, Yuki (1500) | Won 2-1 | +181499 |
| 4sealed | 199 | Shirakawa, Yuichiro (1555) | Won 2-0 | +191518 |
| 5sealed | 233 | Yoshida, Shunsuke (1521) | Won 2-1 | +181536 |
| 6sealed | 76 | Syuto, Yuji (1555) | Won 2-0 | +181554 |
| 7sealed | 85 | Kasuya, Takashi (1581) | Won 2-1 | +191573 |
| 8sealed | 29 | Matsumoto, Yuki2978 (1997) | Lost 0-2 | -111562 |
| 9sealed | 38 | Saitou, Yuu8520 (1570) | Won 2-0 | +181580 |
| 10draft | 61 | Inoue, Hiroyuki0875 (1590) | Lost 0-2 | -181562 |
| 11draft | 83 | Sekizawa, Junpei (1534) | Lost 1-2 | -181544 |
| 12draft | 117 | Gotou, Hiroyuki (1621) | Lost 0-2 | -171527 |
| 13draft | 164 | Taki, Yoshikazu (1464) | Lost 0-2 | -191508 |
| top | average opponent: 1578record: 6-6 | new rating: 1508 | ||
| Grand Prix Shizuoka 2015 (KTK limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 174 | Nakai, Kenichiro (1500) | Won 2-0 | +181518 |
| 2sealed | 136 | Sugimoto, Yuta (1511) | Won 2-1 | +181536 |
| 3sealed | 210 | Mitsuyasu, Hidetoshi (1551) | Draw 1-1 | 01536 |
| 4sealed | 117 | Kitabayashi, Takashi (1649) | Won 2-0 | +201556 |
| 5sealed | 62 | Harane, Kenta (1547) | Lost 0-2 | -181538 |
| 6sealed | 140 | Kitazawa, Kentarou (1535) | Lost 0-2 | -181520 |
| 7sealed | 227 | Ito, Takuya (1455) | Draw 1-1 | -11519 |
| 8sealed | 211 | Saida, Kazuki (1454) | Lost 0-2 | -191500 |
| top | average opponent: 1525record: 3-3-2 | new rating: 1500 | ||