Siff, Matthew
Current rating: 1430
Record: 1-5
| Grand Prix Richmond 2017 (AKH limited) | starting rating: 1484 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 131 | Yu, Ming (1396) | Lost 0-2 | -191465 |
| 2sealed | 531 | Koutroulias, James (1427) | Lost 1-2 | -191446 |
| 3sealed | 674 | Arnold, Andrew (1574) | Lost 0-2 | -161430 |
| average opponent: 1466record: 0-3 | new rating: 1430 | |||
| Grand Prix Baltimore 2014 (KTK limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 248 | Zhang, Yiou (1641) | Lost 0-2 | -151485 |
| 2sealed | 420 | Allen, Mitchell (1482) | Lost 1-2 | -181467 |
| 3sealed | 548 | Gard, George (1463) | Won 2-0 | +171484 |
| average opponent: 1529record: 1-2 | new rating: 1484 | |||