Nishihara, Koya
Current rating: 1500
Record: 3-4
| Regional Championships Aichi 2023 (pioneer) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 2 | Horie, Tooru (1826) | Won 2-0 | +241524 |
| 2pioneer | 25 | Lee, Jaejeong (1548) | Won 2-0 | +181542 |
| 3pioneer | 4 | Chiku, Kotaro (1569) | Won 2-1 | +191561 |
| 4pioneer | 1 | Inui, Takashi (1754) | Lost 1-2 | -151546 |
| 5pioneer | 18 | Takeuchi, Ryota (1811) | Lost 0-2 | -131533 |
| 6pioneer | 32 | Takeo, Shin (1530) | Lost 1-2 | -181515 |
| 7pioneer | 61 | Takahashi, Eiji (1677) | Lost 1-2 | -151500 |
| average opponent: 1674record: 3-4 | new rating: 1500 | |||