Mattox, Anthony
Current rating: 1549
Record: 5-3
| Grand Prix Washington DC 2019 (MH1 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 201 | Fine, David (1467) | Won 2-0 | +171517 |
| 2sealed | 183 | Yingling, Dan (1518) | Won 0-0 | +181535 |
| 3sealed | 19 | Speth, Travis (1745) | Lost 0-2 | -141521 |
| 4sealed | 164 | Ciafardoni, Nick (1384) | Won 2-1 | +161537 |
| 5sealed | 116 | Rodriguez, Miguel Angel (1694) | Won 2-1 | +211558 |
| 6sealed | 137 | Rinehart-Jones, Charlie (1794) | Lost 1-2 | -141544 |
| 7sealed | 175 | Brown, Paul (1620) | Lost 1-2 | -171527 |
| 8sealed | 168 | Cheung, Raymond (1754) | Won 2-0 | +221549 |
| average opponent: 1622record: 5-3 | new rating: 1549 | |||