Horvecki, Margin
Current rating: 1464
Record: 2-4
| Grand Prix Vienna 1999 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 10 | Guetl, Ronald (1500) | Won 0-0 | +181518 |
| 2extended | 31 | Martoch, Michal (1500) | Lost 0-0 | -181500 |
| 3extended | 68 | Buschek, Christo (1500) | Won 0-0 | +181518 |
| 4extended | 72 | Rosochacki, Rafal (1517) | Lost 0-0 | -181500 |
| 5extended | 86 | Rezniczek, Gunther (1500) | Lost 0-0 | -181482 |
| 6extended | 117 | Josupeit, Frank (1481) | Lost 0-0 | -181464 |
| average opponent: 1500record: 2-4 | new rating: 1464 | |||