Halas, Petr
Current rating: 1486
Record: 4-5
| Grand Prix Vienna 2008 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 12 | Patlageanu, Dragos (1500) | Lost 0-2 | -181482 |
| 2extended | 208 | Hinterkirchler, Thomas (1484) | Won 2-1 | +181500 |
| 3extended | 151 | Blomstergren, Viktor J (1528) | Lost 0-2 | -171483 |
| 4extended | 228 | Kalogerinis, John (1449) | Lost 0-2 | -191464 |
| 5extended | 220 | Schanka, Martin (1449) | Won 2-0 | +181482 |
| 6extended | 199 | Kucera, Josef (1481) | Lost 1-2 | -181464 |
| 7extended | 180 | Ivancic, Aljaz (1537) | Won 2-0 | +191483 |
| 8extended | 134 | Hadas, Michal (1481) | Won 2-0 | +181501 |
| 9extended | 109 | Yatsenko, Alex (1643) | Lost 0-2 | -151486 |
| average opponent: 1506record: 4-5 | new rating: 1486 | |||