Yoon, Chanwoong
Current rating: 1501
Record: 4-4
| Grand Prix Yokohama 2019 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 87 | Shirakawa, Yuichiro (1412) | Won 2-1 | +161516 |
| 2modern | 573 | Suezawa, Takumi (1499) | Won 2-0 | +181534 |
| 3modern | 234 | Ojima, Toshiaki (1594) | Lost 0-2 | -171517 |
| 4modern | 610 | Shishikura, Masahiro (1330) | Won 2-0 | +151532 |
| 5modern | 396 | Ishikawa, Fumiaki (1652) | Lost 1-2 | -161516 |
| 6modern | 604 | Fujimoto, Kanta (1538) | Won 2-0 | +181534 |
| 7modern | 475 | Tazawa, Masayuki (1686) | Lost 1-2 | -151519 |
| 8modern | 497 | Kanamaru, Tomohumi (1513) | Lost 1-2 | -181501 |
| average opponent: 1528record: 4-4 | new rating: 1501 | |||