Choi, Byunghyug
Current rating: 1505
Record: 3-3
| Grand Prix Yokohama 2019 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 3modern | 366 | Sato, Tatsuo (1440) | Lost 0-2 | -191481 |
| 4modern | 612 | Sakuma, Toshimitsu (1748) | Won 2-0 | +231504 |
| 5modern | 251 | Ookura, Takahiro (1526) | Won 2-0 | +181522 |
| 6modern | 108 | Lu, Shaoan (1468) | Lost 0-2 | -191503 |
| 7modern | 296 | Huang, Ren Xiong (1537) | Lost 1-2 | -171486 |
| 8modern | 390 | Andou, Ryou (1536) | Won 2-1 | +191505 |
| average opponent: 1543record: 3-3 | new rating: 1505 | |||