Grabowitz, Peter
Current rating: 1518
Record: 7-6
| Grand Prix Bochum 2010 (SOM limited) | starting rating: 1535 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 136 | Weiss, Christian (1464) | Won 2-0 | +161551 |
| 2sealed | 102 | Rizahanov, Artur (1479) | Won 2-0 | +171568 |
| 3sealed | 86 | Wallendorf, Jonas (1812) | Lost 0-2 | -141554 |
| 4sealed | 247 | Messow, Philip (1568) | Lost 0-2 | -171537 |
| 5sealed | 222 | Schramm, Markus (1516) | Lost 1-2 | -191518 |
| average opponent: 1568record: 2-3 | new rating: 1518 | |||
| Grand Prix Cologne 2001 (PLS limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 9 | Ottovordemgentschenfelde, Rolf (1447) | Lost 0-2 | -191481 |
| 2sealed | 213 | Levering, Matthias (1482) | Won 2-1 | +181499 |
| 3sealed | 162 | Scheper, Volkert (1501) | Won 2-1 | +181517 |
| 4sealed | 141 | Kaiser, Frank (1518) | Won 2-0 | +181535 |
| 5sealed | 55 | Steger, Mario (1469) | Won 2-1 | +171552 |
| 6sealed | 60 | Prochazka, Milos (1522) | Lost 0-2 | -191533 |
| 7sealed | 89 | Abed, Arasch (1539) | Won 2-1 | +181551 |
| 8sealed | 68 | Pischner, Andreas (1610) | Lost 1-2 | -161535 |
| average opponent: 1511record: 5-3 | new rating: 1535 | |||