Kang, Jonghoon
Current rating: 1454
| Grand Prix Nagoya 2019 (ELD standard) | starting rating: 1427 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 335 | Kubota, Taiga (1521) | Won 2-0 | +201447 |
| 2standard | 66 | Nishimura, Kazuhiro (1584) | Won 2-0 | +201467 |
| 3standard | 71 | Sawada, Tetsushi (1625) | Lost 0-2 | -151452 |
| 4standard | 409 | Imai, Chisato (1410) | Won 2-0 | +171469 |
| 5standard | 211 | Nagaoka, Yu (1508) | Won 2-0 | +191488 |
| 6standard | 137 | Takemura, Daichi (1534) | Lost 0-2 | -171471 |
| 7standard | 260 | Takahashi, Kei (1603) | Lost 1-2 | -161455 |
| 8standard | 335 | Murase, Tatsuya (1413) | Draw 1-1 | -11454 |
| top | average opponent: 1525record: 4-3-1 | new rating: 1454 | ||
| Grand Prix Yokohama 2019 (modern) | starting rating: 1504 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 183 | Kobayashi, Shigeyuki (1484) | Lost 0-2 | -191485 |
| 2modern | 940 | Arai, Ikki (1285) | Lost 0-2 | -211464 |
| 3modern | 1149 | Yamashita, Yushi (1463) | Draw 1-1 | 01464 |
| 4modern | 1128 | Lu, Bingqing (1414) | Lost 0-1 | -191445 |
| 5modern | 1097 | Sayama, Tatsunosuke (1445) | Lost 1-2 | -181427 |
| top | average opponent: 1418record: 0-4-1 | new rating: 1427 | ||
| Grand Prix Shizuoka 2017 (AER standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 256 | Ichikawa, Norikazu (1575) | Won 2-0 | +191519 |
| 4standard | 2 | Suzuki, Ryo (1601) | Lost 1-2 | -161503 |
| 5standard | 508 | Koziol, Eric (1507) | Won 2-1 | +181521 |
| 6standard | 163 | Noge, Hayata (1562) | Lost 0-2 | -171504 |
| top | average opponent: 1561record: 2-2 | new rating: 1504 | ||