Choi, Seung-Muk
Current rating: 1539
Record: 23-20-2
| Grand Prix Bangkok 2019 (ELD limited) | starting rating: 1582 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 221 | Piyapun, Teerapat (1500) | Won 2-0 | +161598 |
| 2sealed | 127 | Nguyen, Huynh (1519) | Lost 0-2 | -191579 |
| 3sealed | 253 | Chan, Russell (1446) | Lost 0-2 | -211558 |
| 4sealed | 354 | Poh, Jingwen (1483) | Lost 1-2 | -191539 |
| top | average opponent: 1487record: 1-3 | new rating: 1539 | ||
| Grand Prix Tokyo 2016 (SOI standard) | starting rating: 1569 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 336 | Suzuki, Daigo (1500) | Won 2-0 | +171586 |
| 2standard | 702 | Yusuke, Asaoku (1519) | Draw 1-1 | -11585 |
| 3standard | 775 | Muramatsu, Kenichi (1516) | Lost 0-2 | -201565 |
| 4standard | 1119 | Hashimoto, Kazuyuki (1505) | Won 2-0 | +171582 |
| 5standard | 703 | Nakamura, Satoshi (Chiba) (1502) | Won 2-1 | +171599 |
| 6standard | 483 | Yoshida, Kenji (1523) | Won 2-0 | +161615 |
| 7standard | 265 | Itazu, Yoshihisa (1460) | Lost 1-2 | -201595 |
| 8standard | 486 | Wong, Nicholas Jonathan (1881) | Lost 1-2 | -131582 |
| top | average opponent: 1551record: 4-3-1 | new rating: 1582 | ||
| Grand Prix Nagoya 2014 (BNG limited) | starting rating: 1582 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 609 | Fuchigami, Teruaki (1518) | Lost 0-2 | -191563 |
| 3sealed | 809 | Hirai, Masumi (1304) | Won 2-0 | +141577 |
| 4sealed | 683 | Nakamura, Keisuke (1509) | Lost 0-2 | -201557 |
| 5sealed | 787 | Ogata, Nobuhiko (1475) | Lost 0-2 | -191538 |
| 6sealed | 772 | Matsumoto, Masaya (1404) | Lost 1-2 | -211517 |
| 7sealed | 762 | Murase, Tatsuya (1463) | Won 2-0 | +181535 |
| 8sealed | 711 | Motoyanagi, Youhei (1508) | Won 2-0 | +171552 |
| 9sealed | 650 | Andou, Makoto (1497) | Won 2-0 | +171569 |
| top | average opponent: 1460record: 4-4 | new rating: 1569 | ||
| Grand Prix Shizuoka 2013 (THS standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 99 | Tanaka, Akira (1603) | Won 2-0 | +201520 |
| 4standard | 33 | Igarashi, Yasunori (1551) | Draw 1-1 | +11521 |
| 5standard | 55 | Shioda, Masaki (1550) | Lost 0-2 | -181503 |
| 6standard | 123 | Okabayashi, Masanao (1561) | Won 2-0 | +191522 |
| 7standard | 77 | Naitou, Keisuke (1668) | Won 2-0 | +211543 |
| 8standard | 43 | Itou, Kenshirou (1670) | Won 2-0 | +201563 |
| 9standard | 171 | Kitakaze, Asuka (1564) | Won 2-0 | +181581 |
| 10standard | 28 | Hirata, Koutatsu (1556) | Lost 0-2 | -181563 |
| 11standard | 69 | Taki, Yoshikazu (1475) | Lost 1-2 | -201543 |
| 12standard | 89 | Takaku, Takeshi (1577) | Won 2-1 | +191562 |
| 13standard | 66 | Kimura, Keisuke (1540) | Lost 1-2 | -181544 |
| 14standard | 83 | Ito, Hajime (1532) | Won 2-1 | +171561 |
| 15standard | 64 | Aizawa, Keiji (1737) | Won 2-1 | +211582 |
| top | average opponent: 1583record: 8-4-1 | new rating: 1582 | ||
| Grand Prix Kitakyushu 2013 (M14 standard) | starting rating: 1482 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 116 | Aoki, Toshihito (1482) | Won 2-1 | +181500 |
| 2standard | 228 | Kozakai, Yukio (1595) | Won 2-1 | +201520 |
| 3standard | 87 | Nishiura, Ryosuke (1444) | Lost 0-2 | -191501 |
| 4standard | 278 | Kurata, Takayuki (1517) | Lost 1-2 | -181483 |
| 5standard | 431 | Sakai, Souichirou (1499) | Won 2-1 | +181501 |
| 6standard | 298 | Takamizawa, Shigeyoshi (1451) | Won 2-1 | +171518 |
| 7standard | 158 | Dippon, Andreas (1525) | Lost 0-2 | -181500 |
| top | average opponent: 1502record: 4-3 | new rating: 1500 | ||
| Grand Prix Bangkok 2013 (DGM limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 113 | Kullasupmanee, Atthama (1500) | Won 2-1 | +181518 |
| 2sealed | 169 | Berladyn, Vincent (1538) | Lost 0-2 | -181500 |
| 3sealed | 241 | Leesombun, Chaisit (1497) | Won 2-0 | +181518 |
| 4sealed | 208 | Tan, Yee Loong Gordon (1517) | Lost 1-2 | -181500 |
| 5sealed | 294 | Salee, Sasin (1500) | Lost 0-2 | -181482 |
| top | average opponent: 1510record: 2-3 | new rating: 1482 | ||