Kim, Jaehak
Current rating: 1538
Record: 4-3
| Regional Championships Chiba 2023 (pioneer) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 92 | Nishimura, Hiroshi (1500) | Won 2-1 | +181518 |
| 2pioneer | 19 | Kato, Kensuke (1864) | Lost 0-2 | -121506 |
| 3pioneer | 66 | Okamura, Marei (1772) | Lost 1-2 | -131493 |
| 4pioneer | 94 | Hasegawa, Shinya (1579) | Won 2-1 | +191512 |
| 5pioneer | 65 | Yamashita, Yoshiki (1580) | Won 2-1 | +201532 |
| 6pioneer | 41 | Nakashima, Shunichi (1798) | Lost 0-2 | -141518 |
| 7pioneer | 61 | Yoshida, Kei (1612) | Won 2-1 | +201538 |
| average opponent: 1672record: 4-3 | new rating: 1538 | |||