Choi, Jung Won
Current rating: 1458
Record: 16-21-2
| Grand Prix Bangkok 2007 (LRW limited) | starting rating: 1453 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 22 | Khunmuang, Thanajet (1500) | Won 2-0 | +181471 |
| 2sealed | 57 | Srichnrat, Porjace (1518) | Won 2-1 | +191490 |
| 3sealed | 29 | Chinsawananon, Korn (1518) | Won 2-1 | +191509 |
| 4sealed | 52 | Popitukgul, Sutipong (1500) | Lost 0-2 | -181491 |
| 5sealed | 55 | Surapanpitak, Chet (1476) | Lost 0-2 | -191472 |
| 6sealed | 84 | Castellani, Simone (1523) | Lost 0-2 | -171455 |
| 7sealed | 91 | Wong, Alex Pu Siong (1524) | Won 2-0 | +201475 |
| 8sealed | 63 | Weerakitti, Supatip (1563) | Lost 0-2 | -171458 |
| top | average opponent: 1515record: 4-4 | new rating: 1458 | ||
| Grand Prix Singapore 2007 (extended) | starting rating: 1450 | |||
| round | table | opponent (rating) | result | Δrating |
| 4extended | 49 | Summersberger, Helmut (1906) | Lost 0-2 | -101440 |
| 5extended | 45 | Hung, Chi Hang (1579) | Lost 1-2 | -161424 |
| 6extended | 97 | Cohun, Benson (1601) | Won 2-1 | +221446 |
| 7extended | 51 | Wang, Xuan-ji (1686) | Lost 0-2 | -141432 |
| 8extended | 80 | Huang, Benjamin (1581) | Won 2-1 | +211453 |
| top | average opponent: 1671record: 2-3 | new rating: 1453 | ||
| Grand Prix Kuala Lumpur 2006 (DIS limited) | starting rating: 1491 | |||
| round | table | opponent (rating) | result | Δrating |
| 4sealed | 4 | Au Yong, Wai Kin (1838) | Lost 0-2 | -121479 |
| 5sealed | 61 | Tan, Sam (1534) | Won 2-1 | +191498 |
| 6sealed | 24 | Thio, Russell (1640) | Lost 0-2 | -151483 |
| 7sealed | 61 | Foo, Tun Chuan (1521) | Lost 0-2 | -171466 |
| 8sealed | 70 | Loh, Chuan Han (1592) | Lost 0-2 | -161450 |
| top | average opponent: 1625record: 1-4 | new rating: 1450 | ||
| Grand Prix Manila 2006 (GPT limited) | starting rating: 1450 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 142 | Domingo, Paul (1500) | Won 2-1 | +181468 |
| 2sealed | 67 | Tan, Xing Yong (1524) | Lost 0-2 | -171451 |
| 3sealed | 117 | Cortezo, Lorenz (1500) | Lost 1-2 | -171434 |
| 4sealed | 121 | Inumerable, Javy (1482) | Won 2-0 | +191453 |
| 5sealed | 116 | Abella, Reynald (1483) | Draw 1-1 | +11454 |
| 6sealed | 101 | Mananzan, Pio Lorenzo (1499) | Won 2-1 | +191473 |
| 7sealed | 71 | Romero, Alexander David (1518) | Won 2-0 | +181491 |
| top | average opponent: 1501record: 4-2-1 | new rating: 1491 | ||
| Grand Prix Yokohama 2004 (COK limited) | starting rating: 1481 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 189 | Tsujimoto, Taketo (1500) | Lost 0-2 | -181463 |
| 2sealed | 295 | Smith, Alexander O (1482) | Lost 0-2 | -171446 |
| 3sealed | 312 | Gotou, Kaoru (1463) | Lost 0-2 | -181428 |
| 4sealed | 293 | Sato, Hiroki (1445) | Won 2-0 | +181446 |
| 5sealed | 227 | Tsuchiya, Heinrich (1568) | Lost 0-2 | -161430 |
| 6sealed | 198 | Oshimi, Akira (1449) | Won 2-0 | +191449 |
| 7sealed | 161 | Shimizu, Taeko (1468) | Won 2-0 | +181467 |
| 8sealed | 42 | Ono, Teppei (1487) | Lost 0-2 | -171450 |
| top | average opponent: 1483record: 3-5 | new rating: 1450 | ||
| Grand Prix Kuala Lumpur 2004 (5DN standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 59 | Tan, Boon Keat (1483) | Draw 1-1 | 01500 |
| 3standard | 41 | Mokhtaruddin, Mohd Hafiz (1441) | Lost 1-2 | -191481 |
| 4standard | 89 | Wong, Kevin (1504) | Lost 0-2 | -181463 |
| 5standard | 105 | Beh, Hao Xiang (1480) | Won 2-1 | +181481 |
| 6standard | 87 | mazlan, zahir (1494) | Won 2-0 | +191500 |
| 7standard | 66 | Chua, Ern Teck (1465) | Lost 0-2 | -191481 |
| top | average opponent: 1478record: 2-3-1 | new rating: 1481 | ||