Ark, Chad
Current rating: 1496
Record: 2-2
| Grand Prix Washington DC 2019 (MH1 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 123 | Grossman, Isaac (1500) | Lost 1-2 | -181482 |
| 2sealed | 345 | Werner, Jeffrey (1481) | Won 0-0 | +181500 |
| 3sealed | 342 | Morton, Victor (1350) | Won 2-1 | +151515 |
| 4sealed | 254 | Holcomb, John (1452) | Lost 1-2 | -191496 |
| average opponent: 1446record: 2-2 | new rating: 1496 | |||