Kumagai, Kazuki
Current rating: 1501
Record: 3-3
| Grand Prix Yokohama 2019 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 535 | Shin, Antsu (1500) | Won 2-0 | +181518 |
| 2modern | 82 | Yaguchi, Taiki (1537) | Lost 0-2 | -181500 |
| 3modern | 882 | Narita, Nobushige (1487) | Won 2-1 | +181518 |
| 4modern | 524 | Tsuruta, Yoshiaki (1435) | Won 2-0 | +171535 |
| 5modern | 333 | Inoue, Yusuke (1695) | Lost 1-2 | -151520 |
| 6modern | 539 | Nishinaka, Yuuki (1515) | Lost 0-2 | -191501 |
| average opponent: 1528record: 3-3 | new rating: 1501 | |||