Jeong, Won Jun
Current rating: 1762 (#3379)
Record: 30-18
| Grand Prix Hong Kong 2017 (XLN limited) | starting rating: 1640 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 1005 | Ng, Jack Yu Kiu (1674) | Won 2-0 | +181658 |
| 2sealed | 55 | Ellis, Dominic (1524) | Won 1-0 | +161674 |
| 3sealed | 175 | Xu, Ming (1719) | Won 2-0 | +191693 |
| 4sealed | 24 | Li, Duoyan (1738) | Lost 1-2 | -171676 |
| 5sealed | 100 | Alloso, Mark Ian (1582) | Won 2-1 | +161692 |
| 6sealed | 80 | Teng, Kaiyuan (1371) | Won 2-1 | +121704 |
| 7sealed | 44 | Yang, Ryan (1542) | Won 2-1 | +151719 |
| 8sealed | 11 | Kumagai, Riku (2115) | Lost 0-2 | -111708 |
| 9sealed | 54 | Wong, Brian [HKG] (1529) | Lost 1-2 | -211687 |
| 10draft | 116 | Oh, Joo Hyun (1780) | Won 2-0 | +201707 |
| 11draft | 16 | Willems, Sjoerd (1728) | Lost 1-2 | -181689 |
| 12draft | 95 | Yang, Zhijian (1747) | Won 2-0 | +191708 |
| 13draft | 91 | Wong, Koon Kiu (1568) | Won 2-1 | +161724 |
| 14draft | 12 | Ishii, Taisuke (1791) | Won 2-1 | +191743 |
| 15draft | 84 | Loh, Chuan Han (1801) | Won 2-0 | +191762 |
| top | average opponent: 1680record: 11-4 | new rating: 1762 | ||
| Grand Prix Hong Kong 2015 (ORI limited) | starting rating: 1527 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 18 | Cheung, Wing Cheong (1500) | Won 2-0 | +171544 |
| 2sealed | 137 | Shair, Chung Ngai (1653) | Won 2-0 | +201564 |
| 3sealed | 120 | Lim, Victoriano (1576) | Lost 1-2 | -171547 |
| 4sealed | 263 | Bin Abdul R, Abdul Haf (1482) | Won 2-0 | +161563 |
| 5sealed | 78 | Zhi, Yimin (1578) | Lost 0-2 | -171546 |
| 6sealed | 211 | Hao, Jia (1618) | Won 2-0 | +191565 |
| 7sealed | 141 | Lai, Kwong Pang (1592) | Won 2-0 | +181583 |
| 8sealed | 92 | Yu, Pi Hsiang (1697) | Won 2-0 | +211604 |
| 9sealed | 34 | Thanawatdej, Thanawat (1640) | Won 2-0 | +181622 |
| 10draft | 39 | Kanegawa, Toshiya (1912) | Lost 0-2 | -131609 |
| 11draft | 13 | Saito, Tomoharu (2014) | Lost 0-2 | -111598 |
| 12draft | 11 | Tong, San San (1606) | Lost 1-2 | -181580 |
| 13draft | 15 | Kwok, Bone (1813) | Won 2-1 | +231603 |
| 14draft | 39 | Hattori, Taiki (1740) | Won 2-0 | +201623 |
| 15draft | 45 | Huang, Wen-Liang (1553) | Won 2-0 | +171640 |
| top | average opponent: 1665record: 10-5 | new rating: 1640 | ||
| Grand Prix Taipei 2012 (RTR limited) | starting rating: 1469 | |||
| round | table | opponent (rating) | result | Δrating |
| 4sealed | 27 | Natsume, Takuya (1459) | Won 2-0 | +181487 |
| 5sealed | 47 | Sasaki, Masaya (1378) | Lost 1-2 | -201467 |
| 6sealed | 95 | Tsurifune, Takashi (1477) | Won 2-1 | +181485 |
| 7sealed | 36 | Jung, Ga Ram (1581) | Lost 0-2 | -161469 |
| 8sealed | 47 | Law, Albertus Hui Chin (1803) | Won 2-1 | +241493 |
| 9sealed | 40 | Wang, Ming Chee (1750) | Won 2-0 | +221515 |
| 10draft | 14 | Liu, Zhueran (1611) | Lost 1-2 | -161499 |
| 11draft | 11 | Ku, Philip (1570) | Won 2-1 | +191518 |
| 12draft | 26 | Yu, Chun-tien T (1647) | Lost 1-2 | -151503 |
| 13draft | 17 | Shen, Po Chuan (1585) | Lost 1-2 | -171486 |
| 14draft | 15 | Wu, Yao-Ting (1572) | Won 2-0 | +201506 |
| 15draft | 34 | Shoji, Kenta (1679) | Won 2-1 | +211527 |
| top | average opponent: 1593record: 7-5 | new rating: 1527 | ||
| Grand Prix Shanghai 2012 (M13 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 76 | Liang, Xia (1500) | Won 2-0 | +181518 |
| 3sealed | 29 | Kim, Jinho (1462) | Lost 1-2 | -191499 |
| 4sealed | 193 | Li, Feng (1516) | Lost 0-2 | -181481 |
| 5sealed | 227 | White, James T (1604) | Won 2-0 | +211502 |
| 6sealed | 165 | Tai, Kei Leung (1686) | Lost 1-2 | -151487 |
| 7sealed | 247 | Wang, Chuntao (1498) | Lost 0-2 | -181469 |
| top | average opponent: 1544record: 2-4 | new rating: 1469 | ||