Isaac, Cory A
Current rating: 1447
Record: 2-5
| Grand Prix Charlotte 2013 (GTC limited) | starting rating: 1482 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 422 | Smith, Shane (1500) | Lost 0-2 | -171465 |
| 2sealed | 514 | Lynnet, Ben (1508) | Lost 1-2 | -181447 |
| average opponent: 1504record: 0-2 | new rating: 1447 | |||
| Grand Prix Washington DC 2010 (ROE standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 342 | Lundblad, Erik (1580) | Lost 0-2 | -171483 |
| 2standard | 386 | Hale, James (1482) | Lost 1-2 | -181465 |
| 3standard | 415 | King, Matthew (1447) | Won 2-0 | +181483 |
| 4standard | 363 | Anderson, James D (1482) | Won 2-1 | +181501 |
| 5standard | 274 | Lambert, Christopher (1462) | Lost 1-2 | -191482 |
| average opponent: 1490record: 2-3 | new rating: 1482 | |||