Teoh, Calvin
Current rating: 1461
Record: 6-9-1
| Regional Championships Singapore 2023 Cycle 4 (pioneer) | starting rating: 1508 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 83 | Kositaporn, Nonthakorn (1796) | Lost 0-2 | -131495 |
| 2pioneer | 76 | Khor, Wee Yuen Ian (1502) | Draw 1-1 | 01495 |
| 3pioneer | 61 | Towannakan, Nontapat (1502) | Won 2-1 | +181513 |
| 4pioneer | 44 | Yii, Terh Kuen (1621) | Lost 1-2 | -161497 |
| 5pioneer | 55 | Lee, Weimin (1341) | Won 2-1 | +161513 |
| 6pioneer | 41 | Tan, Mark (1524) | Lost 1-2 | -181495 |
| 7pioneer | 45 | Delmoro, Eton (1640) | Lost 1-2 | -161479 |
| 8pioneer | 48 | Yew, Yu Win (1445) | Lost 0-2 | -181461 |
| average opponent: 1546record: 2-5-1 | new rating: 1461 | |||
| Regional Championships Singapore 2022 (pioneer) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 29 | Liew, Jesse (1500) | Won 2-1 | +181518 |
| 2pioneer | 11 | Delmoro, Eton (1518) | Lost 1-2 | -181500 |
| 3pioneer | 55 | Oliveros, Anton Franco (1500) | Lost 0-2 | -181482 |
| 4pioneer | 43 | Mahendran, Nikhilesh (1594) | Won 2-1 | +201502 |
| 5pioneer | 27 | Soliveres, Roel (1714) | Lost 0-2 | -141488 |
| 6pioneer | 51 | Chen, Calvin (1493) | Won 2-1 | +181506 |
| 7pioneer | 34 | Chujitngamsuwong, Thanthawat (1537) | Won 2-1 | +191525 |
| 8pioneer | 31 | Hee, Chung Wye (1609) | Lost 0-2 | -171508 |
| average opponent: 1558record: 4-4 | new rating: 1508 | |||