Yoo, Seoungjai
Current rating: 1418
Record: 2-7-2
| Grand Prix Chiba 2019 (M20 limited) | starting rating: 1449 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 638 | Ohata, Norio (1452) | Lost 0-2 | -181431 |
| 2sealed | 717 | Akase, Kousuke (1447) | Won 2-0 | +181449 |
| 3sealed | 577 | Oohashi, Toshiya (1663) | Lost 1-2 | -141435 |
| 4sealed | 918 | Hashimoto, Yojiro (1480) | Lost 1-2 | -171418 |
| average opponent: 1511record: 1-3 | new rating: 1418 | |||
| Grand Prix Shizuoka 2017 (AER standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 549 | Nagami, Takahiro (1520) | Lost 0-2 | -181482 |
| 4standard | 758 | Shibata, Ryouto (1507) | Draw 1-1 | +11483 |
| 5standard | 644 | Sun, Zhiyuan (1544) | Lost 0-2 | -171466 |
| 6standard | 844 | Abe, Kazuhiro (1521) | Lost 0-2 | -171449 |
| 7standard | 953 | Shindo, Yuto (1487) | Won 2-0 | +191468 |
| 8standard | 770 | Sugimoto, Takaaki (1506) | Draw 1-1 | 01468 |
| 9standard | 747 | Inami, Yuuki (1395) | Lost 1-2 | -191449 |
| average opponent: 1497record: 1-4-2 | new rating: 1449 | |||