Siembor, Matthew
Current rating: 1464
Record: 2-4
| Grand Prix Toronto 2017 (HOU limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 61 | Dambrosi, Luke (1500) | Won 2-0 | +181518 |
| 2sealed | 37 | Downing, Ian (1538) | Lost 0-2 | -181500 |
| 3sealed | 532 | Leung, Jason (1434) | Lost 0-2 | -191481 |
| 4sealed | 454 | Reiber, Jason (1549) | Won 2-1 | +191500 |
| 5sealed | 479 | Davis, Ben [CAN] (1500) | Lost 0-2 | -181482 |
| 6sealed | 413 | Staley, Brian (1481) | Lost 1-2 | -181464 |
| average opponent: 1500record: 2-4 | new rating: 1464 | |||