Yoon, Piljoon
Current rating: 1585
Record: 9-5-1
| Grand Prix Yokohama 2019 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 371 | Wang, Bingxu (1389) | Won 2-0 | +161516 |
| 2modern | 448 | Okada, Naoya (1629) | Lost 1-2 | -161500 |
| 3modern | 580 | Naka, Yuuji (1497) | Won 2-0 | +181518 |
| 4modern | 594 | Hasegawa, Yuuhei (1508) | Won 2-0 | +181536 |
| 5modern | 484 | Ookawa, Yuusuke (1653) | Won 2-1 | +201556 |
| 6modern | 122 | Kawatsu, Shunsuke (1517) | Won 2-0 | +171573 |
| 7modern | 68 | Jung, Yong Hyuk (1624) | Won 2-0 | +191592 |
| 8modern | 78 | Watanabe, Yuta 8061 (1675) | Draw 1-1 | +21594 |
| 9modern | 67 | Nanba, Naoya (1977) | Lost 1-2 | -121582 |
| 10modern | 155 | Takafuji, Masato (1619) | Lost 0-2 | -171565 |
| 11modern | 190 | Matsumura, Toshikazu (1651) | Won 2-0 | +201585 |
| 12modern | 145 | Yokokawa, Yuta (1521) | Won 2-1 | +161601 |
| 13modern | 102 | Kondou, Masaki (1619) | Lost 0-2 | -171584 |
| 14modern | 132 | Tsuzaki, Akira (1637) | Won 2-0 | +191603 |
| 15modern | 103 | Kawaguchi, Takashi (1645) | Lost 1-2 | -181585 |
| average opponent: 1611record: 9-5-1 | new rating: 1585 | |||