Armstrong, Jason
Current rating: 1466
Record: 1-3
| Grand Prix Chicago 2009 (legacy) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 307 | Smith, John H (1500) | Won 2-0 | +181518 |
| 2legacy | 256 | Coppola, Christopher (1564) | Lost 0-1 | -171501 |
| 3legacy | 282 | Schmaltz Tziritas, Mathew (1551) | Lost 0-2 | -171484 |
| 4legacy | 472 | Bilby, Randall C (1486) | Lost 0-2 | -181466 |
| average opponent: 1525record: 1-3 | new rating: 1466 | |||