Sonezaki, Tsutomu
Current rating: 1507
Record: 3-3
| Grand Prix Chiba 2018 (M19 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 340 | Satou, Marin (1439) | Lost 0-2 | -191481 |
| 2sealed | 728 | Seki, Manabu (1476) | Won 2-0 | +181499 |
| 3sealed | 744 | Saegusa, Nobuyuki (1467) | Won 2-0 | +171516 |
| 4sealed | 310 | Watanabe, Yoshifumi (1509) | Lost 0-2 | -181498 |
| 5sealed | 902 | Urase, Ryosuke (1935) | Lost 0-2 | -101488 |
| 6sealed | 785 | Mishina, Ryota (1553) | Won 2-0 | +191507 |
| average opponent: 1563record: 3-3 | new rating: 1507 | |||