Ishihara, Takashi6753
Current rating: 1554
Record: 11-8
| Grand Prix Chiba 2019 (M20 limited) | starting rating: 1592 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 292 | Tanaka, Hayato 0947 (1500) | Lost 0-2 | -201572 |
| 2sealed | 811 | Honda, Soma (1569) | Lost 0-2 | -181554 |
| 3sealed | 1023 | Itsukushima, Shun (1543) | Won 2-0 | +181572 |
| 4sealed | 821 | Takahashi, Yu (1569) | Lost 1-2 | -181554 |
| average opponent: 1545record: 1-3 | new rating: 1554 | |||
| Grand Prix Chiba 2015 (MM2 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 221 | Takahashi, Tomoyoshi (1500) | Won 2-0 | +181518 |
| 2sealed | 168 | Kawamura, Naoki (1359) | Won 2-1 | +151533 |
| 3sealed | 110 | Shimizu, Ryouta (1564) | Lost 1-2 | -171516 |
| 4sealed | 354 | Tsumori, Youhei (1438) | Won 2-1 | +161532 |
| 5sealed | 184 | Tomomura, Hitoshi (1570) | Won 2-1 | +191551 |
| 6sealed | 105 | Shibuya, Shun (1538) | Lost 0-2 | -181533 |
| 7sealed | 190 | Kamoi, Ryo (1625) | Won 2-1 | +191552 |
| 8sealed | 84 | Omori, Wataru (1497) | Won 2-0 | +171569 |
| 9sealed | 99 | Hoshino, Masaaki (1639) | Won 2-0 | +201589 |
| 10draft | 111 | Sato, Tatsuo (1493) | Won 2-0 | +161605 |
| 11draft | 177 | Takeuchi, Ataru (1601) | Lost 1-2 | -181587 |
| 12draft | 163 | Hattori, Taiki (1786) | Won 2-0 | +211608 |
| 13draft | 44 | Wada, Dai (1564) | Lost 1-2 | -181590 |
| 14draft | 155 | Kubota, Muneaki (1614) | Lost 1-2 | -181572 |
| 15draft | 126 | Date, Tsutomu (1655) | Won 2-0 | +201592 |
| average opponent: 1563record: 10-5 | new rating: 1592 | |||