Kountz, Sam
Current rating: 1501
Record: 3-3
| Grand Prix Las Vegas 2018 (limited) (DOM limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 258 | Lerer, Josef (1573) | Lost 0-2 | -171483 |
| 2sealed | 461 | Arbelogirau, Derick (1477) | Won 2-1 | +181501 |
| 3sealed | 532 | Koehler, Justin (1451) | Won 2-0 | +171518 |
| 4sealed | 310 | Tsay, Allen (1525) | Lost 1-2 | -181500 |
| 5sealed | 576 | Olson, Phill (1558) | Won 2-0 | +191519 |
| 6sealed | 337 | Churchill, Michael (1506) | Lost 0-2 | -181501 |
| average opponent: 1515record: 3-3 | new rating: 1501 | |||