Cho, Won-Jun
Current rating: 1692
Record: 27-18
| Grand Prix Las Vegas 2018 (limited) (DOM limited) | starting rating: 1670 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 475 | Stone, Jeffrey (1697) | Won 2-0 | +191689 |
| 2sealed | 15 | Russon, Brent (1594) | Won 2-1 | +161705 |
| 3sealed | 31 | Twardowski, John (1616) | Won 2-1 | +171722 |
| 4sealed | 135 | Gill, Miranda (1570) | Won 2-1 | +151737 |
| 5sealed | 90 | Beaulieu, Sam (1612) | Lost 0-2 | -211716 |
| 6sealed | 194 | Pauley, Adam (1571) | Lost 1-2 | -201696 |
| 7sealed | 217 | Manansala, Bayani (1906) | Won 2-1 | +221718 |
| 8sealed | 130 | Cruz, Eric (1449) | Won 2-1 | +131731 |
| 9sealed | 106 | Marquez, Adrian (1745) | Lost 1-2 | -181713 |
| 10draft | 1410 | Robinson, Kurt (1551) | Lost 0-2 | -211692 |
| top | average opponent: 1631record: 6-4 | new rating: 1692 | ||
| Grand Prix Kyoto 2017 (HOU limited) | starting rating: 1562 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 348 | Takamatsu, Masahiro (1330) | Won 2-0 | +141576 |
| 2sealed | 183 | Tamaki, Ryuta (1482) | Won 2-0 | +161592 |
| 3sealed | 153 | Kobayashi, Jumpei (1456) | Won 2-0 | +161608 |
| 4sealed | 299 | Kitaoka, Takaaki (1752) | Won 2-1 | +201628 |
| 5sealed | 135 | Jensen, William (2151) | Lost 1-2 | -91619 |
| 6sealed | 303 | Kobayashi, Ryohei (1686) | Lost 0-2 | -171602 |
| 7sealed | 390 | Ohata, Norio (1514) | Lost 1-2 | -191583 |
| 8sealed | 414 | Sano, Kimiaki (1723) | Won 2-0 | +201603 |
| 9sealed | 445 | Umehara, Kei (1721) | Won 2-1 | +201623 |
| 10draft | 274 | Saito, Yuki (1621) | Won 2-1 | +181641 |
| 11draft | 275 | Miyamoto, Akihiro (1705) | Won 2-0 | +191660 |
| 12draft | 263 | Tobiasch, Marc (1971) | Won 2-1 | +241684 |
| 13draft | 27 | Dictus, Mark (1673) | Won 2-0 | +181702 |
| 14draft | 240 | Matsumoto, Fumiya (1926) | Lost 1-2 | -141688 |
| 15draft | 229 | Yoshioka, Yuki (1722) | Lost 0-2 | -181670 |
| top | average opponent: 1696record: 10-5 | new rating: 1670 | ||
| Grand Prix Hong Kong 2013 (THS limited) | starting rating: 1540 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 151 | Kwok Siang, Neo (1593) | Lost 1-2 | -181522 |
| 4sealed | 298 | Koyama, Mitsuru (1499) | Won 2-1 | +181540 |
| 5sealed | 149 | Lo, Ian (1534) | Won 2-1 | +181558 |
| 6sealed | 64 | Zhuang, Che (1558) | Won 2-0 | +181576 |
| 7sealed | 61 | Wee, Pang Ming (1771) | Won 2-0 | +211597 |
| 8sealed | 30 | Smirnov, Dmitry (1641) | Lost 0-2 | -171580 |
| 9sealed | 60 | Fung, Wai Ching (1565) | Lost 0-2 | -181562 |
| top | average opponent: 1594record: 4-3 | new rating: 1562 | ||
| Grand Prix Kitakyushu 2013 (M14 standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 37 | Itou, Tomoya (1548) | Won 2-0 | +191519 |
| 4standard | 32 | Sakai, Ryou (1497) | Won 2-0 | +171536 |
| 5standard | 39 | Mizutani, Yosuke (1703) | Lost 1-2 | -151521 |
| 6standard | 92 | Nishimoto, Takuya (1565) | Lost 1-2 | -171504 |
| 7standard | 230 | Kozaki, Yosuke (1463) | Won 2-0 | +181522 |
| 8standard | 153 | Tsujisaka, Shouichi (1586) | Won 2-0 | +191541 |
| 9standard | 124 | Toriuchi, Daizo (1568) | Won 2-0 | +181559 |
| 10standard | 73 | Koretomo, Yuji (1510) | Won 2-1 | +171576 |
| 11standard | 36 | Yamamoto, Akimasa (1872) | Lost 1-2 | -121564 |
| 12standard | 38 | Yasooka, Shota (1929) | Lost 1-2 | -121552 |
| 13standard | 69 | Zhao, Tianyu (1731) | Lost 0-2 | -151537 |
| 14standard | 64 | Toyota, Hiroki (1485) | Won 2-1 | +171554 |
| 15standard | 53 | Yoshimori, Sho (1739) | Lost 1-2 | -141540 |
| top | average opponent: 1630record: 7-6 | new rating: 1540 | ||