Keum, Jinhyuk
Current rating: 1466
Record: 1-3
| Grand Prix Nagoya 2020 (pioneer) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 2pioneer | 291 | Harada, Ryoichi (1619) | Lost 1-2 | -161484 |
| 3pioneer | 648 | Suganuma, Asaki (1497) | Lost 1-2 | -181466 |
| 4pioneer | 756 | Sawada, Naoya (1478) | Won 2-0 | +191485 |
| 5pioneer | 457 | Komizo, Isao (1445) | Lost 1-2 | -191466 |
| average opponent: 1510record: 1-3 | new rating: 1466 | |||