Hafemann, David
Current rating: 1499
Record: 3-3
| Grand Prix Vienna 1999 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 120 | Quota Alberto, Bianchi (1500) | Won 0-0 | +181518 |
| 2extended | 52 | Marangone, Paolo (1518) | Lost 0-0 | -181500 |
| 3extended | 113 | Jatsch, Otmar (1500) | Won 0-0 | +181518 |
| 4extended | 65 | Jones, Craig (1470) | Lost 0-0 | -191499 |
| 5extended | 92 | Glasner, Richard (1501) | Lost 0-0 | -181481 |
| 6extended | 122 | Sosinski, Konrad (1482) | Won 0-0 | +181499 |
| average opponent: 1495record: 3-3 | new rating: 1499 | |||