Posvar, Winston
Current rating: 1501
Record: 2-2-1
| Grand Prix Cleveland 2015 (FRF limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 537 | James, Caleb (1628) | Lost 0-2 | -161484 |
| 2sealed | 484 | Gradisher, Andrew (1483) | Won 2-0 | +181502 |
| 3sealed | 693 | Meeks, Tim (1500) | Lost 0-2 | -181484 |
| 4sealed | 699 | Carroll, Chad (1445) | Draw 1-1 | 01484 |
| 5sealed | 664 | Abdul Aziz, Omar (1480) | Won 2-1 | +171501 |
| average opponent: 1507record: 2-2-1 | new rating: 1501 | |||