Armbrust, Brett
Current rating: 1428
Record: 2-6
| Grand Prix Seattle 2018 (standard) (RIX standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 308 | Dunlap, Sam (1500) | Won 2-0 | +181518 |
| 2standard | 66 | Miller, Brandon (1428) | Lost 0-2 | -201498 |
| 3standard | 585 | Hickmott, Curtis (1491) | Lost 1-2 | -181480 |
| 4standard | 514 | Little, Arthur (1485) | Lost 1-2 | -181462 |
| 5standard | 590 | Tsypkin, Jacob (1465) | Lost 0-2 | -181444 |
| 6standard | 506 | Jenkins, Tracie (1348) | Lost 0-2 | -191425 |
| 7standard | 438 | Davis, John (1663) | Won 2-0 | +221447 |
| 8standard | 355 | Randall, Tyson (1410) | Lost 1-2 | -191428 |
| average opponent: 1474record: 2-6 | new rating: 1428 | |||