Ha, Kevin
Current rating: 1413
| Grand Prix Oakland 2019 (modern) | starting rating: 1410 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 190 | Perera, Vittorio (1717) | Won 2-1 | +231433 |
| 2modern | 194 | Tokgozoglu, Noyan (1519) | Won 2-0 | +201453 |
| 3modern | 72 | Ganzler, Eric (1804) | Lost 1-2 | -121441 |
| 4modern | 358 | Milechman, Daniel (1705) | Lost 0-2 | -131428 |
| 5modern | 260 | Ahmed, Konan (1594) | Lost 0-2 | -151413 |
| top | average opponent: 1668record: 2-3 | new rating: 1413 | ||
| Grand Prix Las Vegas 2017 (modern) (modern) | starting rating: 1464 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 471 | Lyon, Morgan (1500) | Lost 0-2 | -171447 |
| 2modern | 852 | Lounsbury, Tricia (1428) | Lost 1-2 | -191428 |
| 3modern | 1336 | Hodges, Robert (1395) | Lost 0-2 | -181410 |
| top | average opponent: 1441record: 0-3 | new rating: 1410 | ||
| Grand Prix Sacramento 2014 (THS limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 40 | Smith, Sara (1500) | Lost 1-2 | -181482 |
| 2sealed | 388 | Timineri, Reuben (1482) | Lost 1-2 | -181464 |
| top | average opponent: 1491record: 0-2 | new rating: 1464 | ||