Halinka, Donald
Current rating: 1498
Record: 4-4
| Grand Prix Pittsburgh 2015 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 359 | O'Dell, Luke (1370) | Won 2-0 | +161516 |
| 2modern | 489 | Rectenwald, Glen (1518) | Won 2-0 | +181534 |
| 3modern | 327 | Lucrezi, Jacob (1517) | Won 2-1 | +171551 |
| 4modern | 34 | Schop, Adam (1599) | Lost 1-2 | -171534 |
| 5modern | 529 | Comminos, Bill (1492) | Lost 0-2 | -191515 |
| 6modern | 420 | King, John (1520) | Lost 0-2 | -171498 |
| 7modern | 650 | Mohr, Charles (1493) | Won 2-0 | +171515 |
| 8modern | 466 | Hines, Jake (1517) | Lost 0-2 | -171498 |
| average opponent: 1503record: 4-4 | new rating: 1498 | |||