Koga, Kenta
Current rating: 1484
Record: 2-3
| Grand Prix Chiba 2015 (MM2 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 256 | Manaka, Michio (1500) | Won 2-1 | +181518 |
| 2sealed | 287 | Kamizono, Naoki (1654) | Lost 1-2 | -161502 |
| 3sealed | 366 | Maseguchi, Masashi (1360) | Lost 1-2 | -201482 |
| 4sealed | 475 | Takase, Fumiya (1484) | Won 2-0 | +181500 |
| 5sealed | 333 | Okuma, Naoki (1598) | Lost 0-2 | -161484 |
| average opponent: 1519record: 2-3 | new rating: 1484 | |||