Davis, Robert E
Current rating: 1521
Record: 5-4
| Grand Prix Philadelphia 2008 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 9 | Calvi, Jack (1500) | Won 2-0 | +181518 |
| 2extended | 113 | Cape, Phil (1718) | Lost 1-2 | -141504 |
| 3extended | 217 | giordano, angelo (1489) | Won 2-1 | +171521 |
| 4extended | 242 | Bourroughs, Chris (1520) | Lost 0-2 | -181503 |
| 5extended | 285 | Gibbons, Christopher C (1510) | Won 2-0 | +181521 |
| 6extended | 247 | Yeager, Michael (1490) | Won 2-0 | +181539 |
| 7extended | 107 | Tuchek, Stephen (1522) | Lost 1-2 | -181521 |
| 8extended | 174 | Fanjoy, Ben (1556) | Lost 0-2 | -181503 |
| 9extended | 160 | Remigio, Inigo (1517) | Won 2-1 | +181521 |
| average opponent: 1536record: 5-4 | new rating: 1521 | |||