Ostriyznick, Craig
Current rating: 1386
| Grand Prix San Antonio 2014 (KTK standard) | starting rating: 1396 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 143 | Duquette, Ryan (1500) | Won 2-1 | +201416 |
| 2standard | 97 | Smith, Hunter (1517) | Lost 1-2 | -171399 |
| 3standard | 262 | Erickson, James (1467) | Won 2-0 | +201419 |
| 4standard | 249 | Peters, William (1517) | Lost 0-2 | -171402 |
| 5standard | 284 | Welshons, Weston (1500) | Lost 0-2 | -161386 |
| top | average opponent: 1500record: 2-3 | new rating: 1386 | ||
| Grand Prix Austin 2012 (ISD limited) | starting rating: 1445 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 122 | Guardiola, Ruben D (1500) | Won 2-0 | +191464 |
| 2sealed | 146 | Lewis, Jason (1500) | Lost 0-2 | -171447 |
| 3sealed | 331 | Lewis, Jon-Michael (1501) | Lost 0-2 | -171430 |
| 4sealed | 404 | Cervantes, Chris (1483) | Lost 1-2 | -171413 |
| 5sealed | 413 | Guy, Christopher (1463) | Lost 1-2 | -171396 |
| top | average opponent: 1489record: 1-4 | new rating: 1396 | ||
| Grand Prix Dallas 2007 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 108 | Martinez, Peter (1432) | Lost 1-2 | -191481 |
| 2extended | 270 | Seal, Robert (1482) | Won 2-0 | +181499 |
| 3extended | 272 | Edwards, Richard (1500) | Lost 0-0 | -181481 |
| 4extended | 301 | Brockmann, Cody (1482) | Draw 1-1 | 01481 |
| 5extended | 262 | Cason, Daniel (1480) | Lost 1-2 | -181463 |
| 6extended | 230 | Smith, Glenn (1482) | Lost 0-2 | -181445 |
| top | average opponent: 1476record: 1-4-1 | new rating: 1445 | ||