Toyokawa, Kei
Current rating: 1424
Record: 3-7
| Grand Prix Chiba 2019 (M20 limited) | starting rating: 1479 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 45 | Ohta, Shinji (1354) | Lost 0-2 | -211458 |
| 2sealed | 689 | Kato, Hiroki3246 (1571) | Lost 0-2 | -161442 |
| 3sealed | 988 | Iijima, Satoshi (1422) | Lost 0-2 | -181424 |
| average opponent: 1449record: 0-3 | new rating: 1424 | |||
| Grand Prix Chiba 2016 (legacy) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 249 | Suzuki, Masahide (1445) | Lost 0-2 | -191481 |
| 2legacy | 821 | Hokama, Hiroyuki (1482) | Lost 1-2 | -181463 |
| 3legacy | 1043 | Ohtsu, Hayato (1425) | Won 2-1 | +171480 |
| 4legacy | 985 | Yamashita, Syuto (1459) | Won 2-0 | +181498 |
| 5legacy | 669 | Wang, Zhe xu (1450) | Won 2-1 | +171515 |
| 6legacy | 392 | Fujikawa, Naoki (1503) | Lost 0-2 | -181497 |
| 7legacy | 728 | Nakano, Masaya (1483) | Lost 0-2 | -181479 |
| average opponent: 1464record: 3-4 | new rating: 1479 | |||