Armstrong, Arthur
Current rating: 1477
Record: 5-7
| Grand Prix Dallas-Fort Worth 2018 (DOM limited) | starting rating: 1463 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 195 | Cook, David (1356) | Won 2-0 | +161479 |
| 2sealed | 209 | Thomas, Joseph (1449) | Lost 0-2 | -191460 |
| 3sealed | 373 | Richardson, Eric (1504) | Won 2-1 | +191479 |
| 4sealed | 150 | Bernat, Michael (1885) | Lost 0-2 | -111468 |
| 5sealed | 371 | Diep, Minh (1679) | Won 2-0 | +221490 |
| 6sealed | 172 | Fulgium, James (1807) | Lost 0-2 | -131477 |
| average opponent: 1613record: 3-3 | new rating: 1477 | |||
| Grand Prix Austin 2012 (ISD limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 192 | Neuding, Aaron (1500) | Lost 1-2 | -181482 |
| 2sealed | 287 | Anderson, Joshua (1463) | Won 2-1 | +181500 |
| 3sealed | 234 | Blomquist, Jake (1471) | Won 2-1 | +171517 |
| 4sealed | 245 | Palmer, Clayton (1482) | Lost 0-2 | -191498 |
| 5sealed | 314 | Melvin, Paul (1501) | Lost 0-2 | -171481 |
| 6sealed | 320 | Russell, Johnny (1486) | Lost 0-2 | -181463 |
| average opponent: 1484record: 2-4 | new rating: 1463 | |||