Ishii, Takateru
Current rating: 1528
Record: 9-8
| Grand Prix Chiba 2019 (M20 limited) | starting rating: 1570 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 617 | Sasaki, Shota (1500) | Won 2-0 | +171587 |
| 2sealed | 424 | Matsuzawa, Takashi (1517) | Lost 0-2 | -201567 |
| 3sealed | 845 | Tabei, Hirotomo (1525) | Lost 1-2 | -181549 |
| 4sealed | 946 | Iwabuchi, Sou (1395) | Lost 0-2 | -211528 |
| average opponent: 1484record: 1-3 | new rating: 1528 | |||
| Grand Prix Yokohama 2019 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 759 | Watanabe, Kazuki9408 (1535) | Won 2-1 | +191519 |
| 2modern | 435 | Suzuki, Shota 7488 (1518) | Lost 0-2 | -181501 |
| 3modern | 964 | Takemoto, Hikaru (1615) | Won 2-1 | +201521 |
| 4modern | 723 | Tobisawa, Takenori (1550) | Won 2-1 | +181539 |
| 5modern | 421 | Mukouyama, Yu (1535) | Won 2-0 | +181557 |
| 6modern | 195 | Kashiwagi, Ryohei (1795) | Won 2-1 | +221579 |
| 7modern | 95 | Huang, Hao-Shan (1729) | Won 2-1 | +211600 |
| 8modern | 47 | Kodama, Ryou (1587) | Lost 1-2 | -181582 |
| 9modern | 166 | Murao, Keisuke (1588) | Lost 0-2 | -181564 |
| 10modern | 215 | Xu, Siying (1805) | Won 2-0 | +221586 |
| 11modern | 122 | Tomioka, Shota (1578) | Lost 0-2 | -181568 |
| 12modern | 149 | Morishita, Hirotaka (1540) | Won 2-1 | +181586 |
| 13modern | 168 | Futamata, Yojiro (1715) | Lost 0-2 | -161570 |
| average opponent: 1622record: 8-5 | new rating: 1570 | |||