Oh, Chai Hock Andrew
Current rating: 1583
Record: 24-25-1
| Regional Championships Singapore 2023 Cycle 4 (pioneer) | starting rating: 1496 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 42 | Arunrattananukul, Paween (1561) | Won 2-1 | +191515 |
| 2pioneer | 25 | See, Spencer (1614) | Won 2-0 | +201535 |
| 3pioneer | 16 | Yang, Joshua (1880) | Won 2-1 | +241559 |
| 4pioneer | 7 | Chua, Bryant (1561) | Lost 1-2 | -181541 |
| 5pioneer | 11 | Soh, Weng Heng (1860) | Lost 0-2 | -121529 |
| 6pioneer | 36 | Garcia, Kevin Erle (1520) | Won 2-1 | +171546 |
| 7pioneer | 19 | Lim, Ting Yong (1590) | Won 2-1 | +191565 |
| 8pioneer | 13 | Ang, Glenn (1529) | Won 2-0 | +181583 |
| top | average opponent: 1639record: 6-2 | new rating: 1583 | ||
| Regional Championships Singapore 2023 (pioneer) | starting rating: 1392 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 42 | Pariwono, Edward (1518) | Won 2-0 | +201412 |
| 2pioneer | 16 | Arunrattananukul, Chakrit (1514) | Won 2-0 | +201432 |
| 3pioneer | 14 | Fong, Fredrick (1531) | Won 2-1 | +201452 |
| 4pioneer | 3 | Pratomo, Arwin (1590) | Lost 1-2 | -161436 |
| 5pioneer | 18 | Loh, Jason (1635) | Won 2-1 | +221458 |
| 6pioneer | 5 | Kositaporn, Nonthakorn (1829) | Won 2-1 | +241482 |
| 7pioneer | 3 | Lip, Quinton (1786) | Lost 1-2 | -121470 |
| 8pioneer | 7 | Ong, Richie (1944) | Won 2-1 | +261496 |
| top | average opponent: 1668record: 6-2 | new rating: 1496 | ||
| Grand Prix Chiba 2015 (MM2 limited) | starting rating: 1422 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 184 | Sugiyama, Takanori (1546) | Lost 0-2 | -161406 |
| 4sealed | 292 | Iwama, Hirokazu (1615) | Lost 0-2 | -141392 |
| top | average opponent: 1581record: 0-2 | new rating: 1392 | ||
| Grand Prix Shanghai 2014 (KTK limited) | starting rating: 1444 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 215 | Zhuang, Zhendong (1536) | Draw 1-1 | +21446 |
| 4sealed | 139 | Zhou, Jun (1538) | Lost 1-2 | -171429 |
| 5sealed | 239 | Gu, Shufan (1487) | Lost 1-2 | -171412 |
| 6sealed | 350 | Chen, Yonglin (1500) | Won 2-0 | +201432 |
| 7sealed | 253 | Pan, Wenjin (1519) | Won 2-1 | +201452 |
| 8sealed | 183 | Yin, Xin (1763) | Lost 0-2 | -131439 |
| 9sealed | 209 | Li, Teng (1490) | Lost 0-2 | -171422 |
| top | average opponent: 1548record: 2-4-1 | new rating: 1422 | ||
| Grand Prix Sydney 2014 (M15 limited) | starting rating: 1439 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 91 | Warren, Connor (1521) | Lost 0-2 | -171422 |
| 4sealed | 92 | Devlin, Martin (1518) | Won 2-1 | +201442 |
| 5sealed | 86 | Ho, Colin (1522) | Won 2-1 | +191461 |
| 6sealed | 92 | Horvath, Elliott (1623) | Won 2-0 | +211482 |
| 7sealed | 27 | Wilson, Jacob (2077) | Lost 0-2 | -81474 |
| 8sealed | 36 | Byatt, Alexander (1643) | Lost 1-2 | -151459 |
| 9sealed | 96 | Sinkis, Peter (1614) | Lost 1-2 | -151444 |
| top | average opponent: 1645record: 3-4 | new rating: 1444 | ||
| Grand Prix Kuala Lumpur 2014 (THS limited) | starting rating: 1488 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 123 | Khoo, Shawn (1634) | Lost 0-2 | -151473 |
| 4sealed | 184 | Huang Shaojie, Andrew (1520) | Lost 1-2 | -171456 |
| 5sealed | 229 | Chan, Charles Vincent (1501) | Lost 0-2 | -171439 |
| top | average opponent: 1552record: 0-3 | new rating: 1439 | ||
| Grand Prix Hong Kong 2013 (THS limited) | starting rating: 1508 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 166 | Jiao, Chang (1428) | Lost 0-2 | -201488 |
| top | record: 0-1 | new rating: 1488 | ||
| Grand Prix Bangkok 2013 (DGM limited) | starting rating: 1547 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 144 | Ng, Yung Sern (1502) | Won 2-0 | +171564 |
| 3sealed | 21 | Pe, Damien Hang Rui (1497) | Lost 0-2 | -191545 |
| 4sealed | 211 | Tongprajied, Somjade (1520) | Won 2-0 | +171562 |
| 5sealed | 117 | Lee, YongUn (1486) | Lost 0-2 | -191543 |
| 6sealed | 131 | Ng, Si Yong Aaron (1533) | Lost 1-2 | -181525 |
| 7sealed | 199 | Liang, Hong Lun (1590) | Lost 1-2 | -171508 |
| top | average opponent: 1521record: 2-4 | new rating: 1508 | ||
| Grand Prix Singapore 2013 (RTR limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 63 | Tan, Chai Jing (1589) | Won 2-1 | +201520 |
| 3sealed | 65 | Qu, Hsueh Ming (1549) | Won 2-0 | +181538 |
| 4sealed | 62 | Xu, Shiwei (1513) | Lost 1-2 | -181520 |
| 5sealed | 166 | Ong, Kiat Sing (1534) | Won 2-1 | +181538 |
| 6sealed | 40 | Sabater, Aldin (1553) | Won 2-1 | +181556 |
| 7sealed | 39 | Abella, Reynald (1662) | Won 2-1 | +201576 |
| 8sealed | 15 | Leong, Ding Yuan (1951) | Lost 0-2 | -111565 |
| 9sealed | 78 | Siao, G. Shung (1570) | Lost 0-2 | -181547 |
| top | average opponent: 1615record: 5-3 | new rating: 1547 | ||