Chang, Ai-Chen
Current rating: 1560
Record: 11-8
| Regional Championships Taipei 2023 Cycle 4 (pioneer) | starting rating: 1541 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 7 | Chen, Fei Li (1503) | Won 2-0 | +171558 |
| 2pioneer | 16 | Meng, Yang Chen (1490) | Won 2-1 | +171575 |
| 3pioneer | 4 | Chen, Bor-Hong (1587) | Lost 0-2 | -181557 |
| 4pioneer | 18 | Yu, Zhao Han (1516) | Lost 0-2 | -181539 |
| 5pioneer | 27 | Tseng, Hsiangcheng (1501) | Won 2-1 | +171556 |
| 6pioneer | 11 | Chang, Chih Hao (1549) | Won 2-0 | +181574 |
| 7pioneer | 8 | Lee, Jim Tim (1835) | Lost 1-2 | -141560 |
| top | average opponent: 1569record: 4-3 | new rating: 1560 | ||
| Regional Championships Taipei 2023 Cycle 3 (pioneer) | starting rating: 1504 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 4 | Huang, Ting Yin (1539) | Won 2-1 | +181522 |
| 2pioneer | 2 | Yeh, Peter (1503) | Won 2-0 | +181540 |
| 3pioneer | 6 | Peng, Shin Cyuan (1537) | Lost 0-2 | -181522 |
| 4pioneer | 10 | Liu, Tei Ming (1470) | Won 2-1 | +171539 |
| 5pioneer | 7 | Lee, Shang Feng (1577) | Lost 0-2 | -171522 |
| 6pioneer | 10 | Su, ZhaoBo (1603) | Won 2-0 | +191541 |
| top | average opponent: 1538record: 4-2 | new rating: 1541 | ||
| Regional Championships Taipei 2023 (ONE standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 6 | Chang, Cheng Yu (1663) | Lost 1-2 | -151485 |
| 2standard | 21 | Hu, Tien Yuan (1483) | Won 2-1 | +181503 |
| 3standard | 22 | Lin, Chi Kuan (1589) | Lost 1-2 | -171486 |
| 4standard | 17 | Liu, Tei Ming (1466) | Won 2-0 | +181504 |
| 5standard | 16 | Enki Wu, Jadol (1500) | Lost 0-2 | -181486 |
| 6standard | 21 | Tang, Yu Hsiang (1462) | Won 2-0 | +181504 |
| top | average opponent: 1527record: 3-3 | new rating: 1504 | ||