Seok, Jeong - hun
Current rating: 1481
Record: 3-4-1
| Grand Prix Yokohama 2003 (Onslaught block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 31 | Kimura, Haruki (1500) | Lost 0-2 | -181482 |
| 2block | 307 | Endo, Tsuyoshi (1482) | Lost 0-2 | -181464 |
| 3block | 365 | Adachi, Hikaru (1466) | Won 2-0 | +181482 |
| 4block | 266 | Yamashita, Hiroki (1464) | Lost 1-2 | -181464 |
| 5block | 317 | Nakamura, Motoka (1463) | Lost 0-2 | -181446 |
| 6block | 325 | Konuma, Tetsuya (1446) | Won 2-1 | +181464 |
| 7block | 276 | Fujiwara, Akira (1464) | Draw 1-1 | 01464 |
| 8block | 243 | Tsunokawa, Yoshikazu (1407) | Won 2-0 | +171481 |
| average opponent: 1462record: 3-4-1 | new rating: 1481 | |||