Cho, Jae Seok
Current rating: 1555
Record: 52-46 (GP) / 2-4 (professional)
Grand Prix Hong Kong 2017Grand Prix Hong Kong 2018Grand Prix Shizuoka 2018 (standard)Grand Prix Kyoto 2019Grand Prix Yokohama 2019Grand Prix Taipei 2019Grand Prix Chiba 2019Neon Dynasty ChampionshipRegional Championships Aichi 2022Regional Championships Yokohama 2023Regional Championships Chiba 2023Regional Championships Aichi 2023
| Regional Championships Aichi 2023 (pioneer) | starting rating: 1613 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 89 | Morishita, Yukitaka (1500) | Lost 1-2 | -201593 |
| 2pioneer | 121 | Onizuka, Hiroshi (1605) | Lost 0-2 | -181575 |
| 3pioneer | 110 | Homma, Akira (1525) | Won 2-0 | +171592 |
| 4pioneer | 90 | Matsumoto, Keiichiro (1540) | Lost 1-2 | -191573 |
| 5pioneer | 91 | Obara, Yuichiro (1593) | Lost 0-2 | -181555 |
| top | average opponent: 1552record: 1-4 | new rating: 1555 | ||
| Regional Championships Chiba 2023 (pioneer) | starting rating: 1572 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 85 | Fujino, Yoshitaka (1607) | Won 2-1 | +191591 |
| 2pioneer | 10 | Nagami, Takahiro (1589) | Won 2-1 | +181609 |
| 3pioneer | 20 | Murae, Ryuji (2076) | Won 2-0 | +261635 |
| 4pioneer | 1 | Iwazaki, Yuuta (1903) | Lost 0-2 | -141621 |
| 5pioneer | 17 | Matsumura, Toshikazu (1591) | Lost 1-2 | -181603 |
| 6pioneer | 49 | Kim, Jeong Heon (1548) | Won 2-0 | +171620 |
| 7pioneer | 34 | Horiuchi, Makoto (1823) | Won 2-0 | +211641 |
| 8pioneer | 17 | Kosaka, Kazune (2007) | Won 2-1 | +251666 |
| 9pioneer | 14 | Nakamura, Kazuhiro (1681) | Lost 0-2 | -181648 |
| 10pioneer | 16 | Tase, Yuya (1614) | Lost 1-2 | -191629 |
| 11pioneer | 22 | Sasao, Yusuke (1705) | Lost 0-2 | -161613 |
| top | average opponent: 1740record: 6-5 | new rating: 1613 | ||
| Regional Championships Yokohama 2023 (ONE standard) | starting rating: 1651 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 3 | Okamura, Marei (1622) | Lost 1-2 | -191632 |
| 2standard | 74 | Kasuga, Ryou (1435) | Won 2-0 | +141646 |
| 3standard | 66 | Fujiwara, Mizuki (1579) | Lost 0-2 | -191627 |
| 4standard | 57 | Hitachi, Kyle (1508) | Lost 1-2 | -201607 |
| 5standard | 79 | Kodama, Kentaro (1534) | Lost 0-2 | -191588 |
| 6standard | 71 | Yanase, Kaname (1708) | Lost 0-2 | -161572 |
| top | average opponent: 1564record: 1-5 | new rating: 1572 | ||
| Regional Championships Aichi 2022 (pioneer) | starting rating: 1754 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 85 | Ishikawa, Hikaru (1521) | Lost 1-2 | -231731 |
| 2pioneer | 91 | Yoon, Sang-Woong (1500) | Won 2-1 | +141745 |
| 3pioneer | 38 | Sugimoto, Takashi (1502) | Won 2-1 | +141759 |
| 4pioneer | 43 | Saito, Toru (1924) | Won 2-0 | +211780 |
| 5pioneer | 11 | Hasegawa, Atusi (1350) | Lost 1-2 | -251755 |
| 6pioneer | 43 | Sugizaki, Shunsuke (1592) | Won 2-0 | +151770 |
| 7pioneer | 26 | Oka, Yosuke (1715) | Lost 0-2 | -191751 |
| 8pioneer | 30 | Miyabe, Kouichi (1773) | Lost 0-2 | -181733 |
| 9pioneer | 31 | Yamashita, Yoshiki (1505) | Lost 0-2 | -221711 |
| 10pioneer | 31 | Yoshimori, Sho (1583) | Lost 1-2 | -201691 |
| 11pioneer | 29 | Kobayashi, Ryohei (1650) | Lost 1-2 | -191672 |
| 12pioneer | 26 | Kobayashi, Akira (1490) | Lost 0-2 | -211651 |
| top | average opponent: 1592record: 4-8 | new rating: 1651 | ||
| Neon Dynasty Championship (MTGA mixed) | starting rating: 1782 | |||
| round | table | opponent (rating) | result | Δrating |
| 1alchemy | 103 | Damo da Rosa, Paulo Vitor (2095) | Lost 1-2 | -121770 |
| 2alchemy | 60 | Barnett, Adam (1599) | Won 2-1 | +141784 |
| 3alchemy | 63 | Sigrist, Mike (1786) | Won 2-0 | +191803 |
| 4historic | 30 | Wellman, Julian (1610) | Lost 0-2 | -221781 |
| 5historic | 40 | Levy, Raphael (1985) | Lost 1-2 | -141767 |
| 6historic | 91 | Kiihne, Zachary (2037) | Lost 0-2 | -131754 |
| top | average opponent: 1852record: 2-4 | new rating: 1754 | ||
| Grand Prix Chiba 2019 (M20 limited) | starting rating: 1829 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 46 | Sekine, Hiroya (1464) | Lost 0-2 | -241805 |
| 4sealed | 332 | Triratanakulcharas, Nuttapol (1521) | Lost 0-2 | -231782 |
| top | average opponent: 1493record: 0-2 | new rating: 1782 | ||
| Grand Prix Taipei 2019 (WAR standard) | starting rating: 1723 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 172 | Jiao, Shichen (1453) | Won 2-1 | +131736 |
| 4standard | 101 | Yamada, Junki (1656) | Won 2-0 | +171753 |
| 5standard | 32 | Kwok, Alex (1584) | Won 2-0 | +151768 |
| 6standard | 27 | Liu, Yuchen (1986) | Lost 0-2 | -141754 |
| 7standard | 71 | Chang, Cheng Yu (1694) | Lost 0-2 | -191735 |
| 8standard | 64 | Charm, Derek (1669) | Won 2-1 | +171752 |
| 9standard | 73 | Wong, Kuo (1603) | Won 2-0 | +151767 |
| 10standard | 70 | Woo, Brandon (1599) | Lost 1-2 | -211746 |
| 11standard | 83 | Cuello, Anthony (1486) | Won 2-0 | +131759 |
| 12standard | 37 | Katakawa, Souta (1749) | Won 2-1 | +181777 |
| 13standard | 32 | Park, Sangwook (1771) | Won 2-0 | +181795 |
| 14standard | 27 | Lin, Ming Yi (1742) | Won 2-0 | +171812 |
| 15standard | 15 | Lin, Mu Yang (1787) | Won 2-0 | +171829 |
| top | average opponent: 1675record: 10-3 | new rating: 1829 | ||
| Grand Prix Yokohama 2019 (modern) | starting rating: 1644 | |||
| round | table | opponent (rating) | result | Δrating |
| 3modern | 208 | Kondo, Yusuke (1442) | Won 2-0 | +151659 |
| 4modern | 169 | Jung, Yong Hyuk (1603) | Lost 0-2 | -191640 |
| 5modern | 350 | Kitayama, Masaya (1889) | Won 2-1 | +221662 |
| 6modern | 175 | Nagao, Naoki (1626) | Won 2-1 | +181680 |
| 7modern | 178 | Ikeda, Hiroaki (1597) | Lost 1-2 | -201660 |
| 8modern | 162 | Kato, Shota (1556) | Won 2-1 | +161676 |
| 9modern | 174 | Jiang, Yiren (1844) | Won 2-0 | +211697 |
| 10modern | 118 | Kubota, Taiga (1466) | Won 2-0 | +141711 |
| 11modern | 71 | Hashizume, Yuuya (1582) | Won 2-0 | +161727 |
| 12modern | 55 | Katakawa, Souta (1695) | Won 2-1 | +171744 |
| 13modern | 21 | Ohta, Masataka (1679) | Won 2-0 | +171761 |
| 14modern | 17 | Li, Youchen (1617) | Lost 1-2 | -211740 |
| 15modern | 20 | Takano, Kodai (1790) | Lost 0-2 | -171723 |
| top | average opponent: 1645record: 9-4 | new rating: 1723 | ||
| Grand Prix Kyoto 2019 (RNA standard) | starting rating: 1666 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 111 | Hamaguchi, Shoji (1529) | Won 2-1 | +151681 |
| 4standard | 184 | Ishida, Ryuichiro (1642) | Lost 0-2 | -191662 |
| 5standard | 271 | Okada, Yuki 4232 (1657) | Lost 1-2 | -181644 |
| top | average opponent: 1610record: 1-2 | new rating: 1644 | ||
| Grand Prix Shizuoka 2018 (standard) (GRN standard) | starting rating: 1528 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 346 | Guillamon, Hector (1401) | Won 2-1 | +151543 |
| 4standard | 402 | Iijima, Shin (1518) | Won 2-0 | +181561 |
| 5standard | 270 | Nakano, Tatsuhito (1713) | Won 2-1 | +211582 |
| 6standard | 231 | Umeda, Takuya (1654) | Won 2-0 | +191601 |
| 7standard | 204 | Liu, Xuan (1781) | Lost 1-2 | -151586 |
| 8standard | 207 | Chong, Kew (1603) | Won 2-1 | +181604 |
| 9standard | 25 | Igura, Hayato (1572) | Lost 1-2 | -181586 |
| 10standard | 114 | Iseki, Ojiro (1600) | Won 2-0 | +181604 |
| 11standard | 47 | Takashima, Daisuke (1674) | Lost 1-2 | -171587 |
| 12standard | 82 | Kimura, Kosuke (1618) | Won 2-0 | +191606 |
| 13standard | 37 | Nomiya, Yohei (1877) | Won 2-1 | +231629 |
| 14standard | 25 | Fujita, Toshitake (1561) | Won 2-1 | +171646 |
| 15standard | 18 | Hamaguchi, Masakuni (1762) | Won 2-1 | +201666 |
| top | average opponent: 1641record: 10-3 | new rating: 1666 | ||
| Grand Prix Hong Kong 2018 (modern) | starting rating: 1555 | |||
| round | table | opponent (rating) | result | Δrating |
| 3modern | 8 | Ma, Noah (1730) | Won 2-0 | +211576 |
| 4modern | 12 | Ogawa, Shota (1703) | Lost 0-2 | -161560 |
| 5modern | 100 | Peng, Jianjia (1855) | Won 2-0 | +241584 |
| 6modern | 93 | Wu, Chen Yen (1507) | Lost 1-2 | -201564 |
| 7modern | 123 | Chow, Lok Yin (1540) | Lost 1-2 | -181546 |
| 8modern | 208 | Zhai, Fengyang (1539) | Lost 0-2 | -181528 |
| top | average opponent: 1646record: 2-4 | new rating: 1528 | ||
| Grand Prix Hong Kong 2017 (XLN limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 74 | Belsot, Benoit (1593) | Won 2-1 | +201520 |
| 2sealed | 59 | Gao, Bo (1504) | Won 2-1 | +171537 |
| 3sealed | 13 | Tan, Chin Heng (1908) | Lost 1-2 | -111526 |
| 4sealed | 245 | Morita, Masayuki (1378) | Won 2-0 | +151541 |
| 5sealed | 155 | Kamo, Riki (1781) | Lost 0-2 | -141527 |
| 6sealed | 126 | Takaya, Kensuke (1524) | Lost 1-2 | -181509 |
| 7sealed | 183 | Murakami, Souta (1669) | Won 2-0 | +211530 |
| 8sealed | 157 | Setya, Steven Dirga (1691) | Won 2-1 | +211551 |
| 9sealed | 90 | Pornpromlikit, Ekapong (1570) | Won 2-0 | +191570 |
| 10draft | 92 | Shoji, Hayato (1585) | Won 2-0 | +181588 |
| 11draft | 119 | Fung, Jeff (1697) | Lost 0-2 | -161572 |
| 12draft | 104 | Cheung, Henry (1526) | Won 2-0 | +171589 |
| 13draft | 46 | Lau, Tin Lun Sky (1594) | Lost 0-2 | -181571 |
| 14draft | 87 | Chu, Sylvester (1669) | Lost 0-2 | -161555 |
| top | average opponent: 1621record: 8-6 | new rating: 1555 | ||