Heo, Seungho
Current rating: 1509
Record: 6-6
| Grand Prix Toronto 2019 (modern) | starting rating: 1539 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 69 | Liorti, Andrew (1781) | Won 2-0 | +231562 |
| 2modern | 253 | Cera, Ardi (1500) | Lost 0-2 | -201542 |
| 3modern | 310 | Cuba, Alvaro (1612) | Lost 0-2 | -161526 |
| 4modern | 538 | Dixon, Kevin (1615) | Lost 1-2 | -171509 |
| average opponent: 1627record: 1-3 | new rating: 1509 | |||
| Grand Prix Las Vegas 2018 (modern) (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 299 | Kim, Jace (1500) | Won 2-1 | +181518 |
| 2modern | 338 | Joseph, Leon (1658) | Lost 0-2 | -151503 |
| 3modern | 732 | Roether, Ivan (1509) | Won 2-0 | +181521 |
| 4modern | 426 | Martin, Pete (1520) | Lost 0-2 | -181503 |
| 5modern | 588 | Wesley, Hudson (1501) | Won 2-0 | +181521 |
| 6modern | 484 | Gambrel, Tyler (1514) | Won 2-0 | +171538 |
| 7modern | 214 | Garcia, Eduardo (1557) | Won 2-0 | +191557 |
| 8modern | 302 | Allison, Joshua (1579) | Lost 1-2 | -181539 |
| average opponent: 1542record: 5-3 | new rating: 1539 | |||