Chen, Calvin
Current rating: 1451
Record: 15-21-2
| Regional Championships Singapore 2023 (pioneer) | starting rating: 1475 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 65 | Pascual, Alfred Ceazar (1638) | Lost 0-2 | -151460 |
| 2pioneer | 70 | Mendoza, Norbie (1771) | Lost 0-2 | -121448 |
| 3pioneer | 71 | Cruz, Neil (1610) | Won 2-1 | +211469 |
| 4pioneer | 49 | Techarattanakrai, Trichai (1491) | Lost 0-2 | -181451 |
| top | average opponent: 1627record: 1-3 | new rating: 1451 | ||
| Regional Championships Singapore 2022 (pioneer) | starting rating: 1503 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 56 | Shahron, Wafiy (1500) | Won 2-1 | +181521 |
| 2pioneer | 13 | Lim, Wei Teng (1622) | Won 2-0 | +201541 |
| 3pioneer | 16 | Yang, Joshua (1871) | Lost 1-2 | -131528 |
| 4pioneer | 23 | Chin, Justin (1525) | Lost 0-2 | -181510 |
| 5pioneer | 36 | Borrero, Arno (1558) | Lost 1-2 | -171493 |
| 6pioneer | 51 | Teoh, Calvin (1488) | Lost 1-2 | -181475 |
| top | average opponent: 1594record: 2-4 | new rating: 1475 | ||
| Grand Prix Hong Kong 2018 (modern) | starting rating: 1510 | |||
| round | table | opponent (rating) | result | Δrating |
| 2modern | 184 | Yang, Liyan (1770) | Lost 0-2 | -131497 |
| 3modern | 319 | Wang, Siyuan (1543) | Won 2-1 | +191516 |
| 4modern | 141 | Liu, Rongpei (1550) | Lost 1-2 | -181498 |
| 5modern | 251 | Park, Hyun-Jun (1566) | Lost 0-2 | -161482 |
| 6modern | 332 | Wong, Sam (1451) | Won 2-0 | +171499 |
| 7modern | 217 | Sun, Guolong (1711) | Won 2-0 | +221521 |
| 8modern | 201 | Luo, Sida (1521) | Lost 0-2 | -181503 |
| top | average opponent: 1588record: 3-4 | new rating: 1503 | ||
| Grand Prix Singapore 2018 (DOM standard) | starting rating: 1513 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 15 | Faidzan, Ferhan (1500) | Won 2-1 | +181531 |
| 3standard | 39 | Chew Jun, George (1551) | Won 2-1 | +181549 |
| 4standard | 89 | Hagiwara, Masakatsu (1616) | Won 2-1 | +191568 |
| 5standard | 14 | Takimura, Kazuyuki (2038) | Lost 1-2 | -101558 |
| 6standard | 95 | Otsuka, Tomohito (1594) | Lost 1-2 | -171541 |
| 7standard | 156 | Lim, Franz (1583) | Lost 0-2 | -171524 |
| 8standard | 119 | Boku, Takashi (1777) | Lost 0-2 | -141510 |
| top | average opponent: 1666record: 3-4 | new rating: 1510 | ||
| Grand Prix Kuala Lumpur 2016 (KLD standard) | starting rating: 1528 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 98 | Litton, Jayson (1615) | Lost 0-0 | -161512 |
| 4standard | 128 | Lo, Mikail (1557) | Lost 1-2 | -171495 |
| 5standard | 237 | Sivanathan, Thomas (1501) | Draw 1-1 | 01495 |
| 6standard | 217 | Abd Ghani, Johan (1475) | Won 2-1 | +181513 |
| 7standard | 161 | Santos, John Robert (1532) | Won 2-0 | +181531 |
| 8standard | 120 | Alvarez, Paolo Lorenzo (1558) | Lost 1-2 | -181513 |
| 9standard | 160 | Chuengcharoensil, Pisanchai (1487) | Draw 1-1 | 01513 |
| top | average opponent: 1532record: 2-3-2 | new rating: 1513 | ||
| Grand Prix Taipei 2014 (M15 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 170 | Yan, Yan (1659) | Won 2-1 | +211521 |
| 4sealed | 37 | Lin, Hsien Chang (1538) | Lost 1-2 | -181503 |
| 5sealed | 171 | Hsu, Kuang-Yen (1537) | Lost 0-2 | -171486 |
| 6sealed | 143 | Tsujimoto, Hideki (1739) | Lost 0-2 | -141472 |
| 7sealed | 198 | Chang, Ching Sheng (1502) | Won 2-1 | +191491 |
| 8sealed | 177 | Yasuda, Seita (1621) | Won 2-0 | +201511 |
| 9sealed | 149 | Chong, Edwin (1468) | Won 2-1 | +171528 |
| top | average opponent: 1581record: 4-3 | new rating: 1528 | ||