Del Pizzo, Rosario
Current rating: 1487
Record: 4-5
| Grand Prix Prague 2009 (M10 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 139 | Steinbock, Kai (1489) | Won 2-0 | +181518 |
| 2sealed | 24 | Stadfrucker, Fedor (1518) | Lost 0-2 | -181500 |
| 3sealed | 234 | Trejtnar, Andreas (1495) | Lost 0-2 | -181482 |
| 4sealed | 284 | Krook, Nadra (1456) | Won 2-0 | +171499 |
| 5sealed | 220 | Goerres, Falko (1439) | Won 2-1 | +171516 |
| 6sealed | 160 | Knoff, Henning (1539) | Won 2-0 | +191535 |
| 7sealed | 108 | Fajmon, Milan (1537) | Lost 0-2 | -181517 |
| 8sealed | 134 | Intini, Giovanni (1687) | Lost 1-2 | -151502 |
| 9sealed | 120 | Lachevre, Jerome (1667) | Lost 0-2 | -151487 |
| average opponent: 1536record: 4-5 | new rating: 1487 | |||