Stack, Robert
Current rating: 1501
Record: 2-2
| Grand Prix Washington DC 2019 (MH1 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 58 | Kvasnyuk, Sergey (1500) | Won 2-0 | +181518 |
| 2sealed | 15 | Stambaugh, Blaine (1500) | Lost 0-0 | -181500 |
| 3sealed | 278 | Luu, Mike (1444) | Won 2-1 | +171517 |
| 4sealed | 355 | Cambie-Fabris, Pierluigi (1659) | Lost 0-2 | -161501 |
| average opponent: 1526record: 2-2 | new rating: 1501 | |||