Fonseca, Andrew
Current rating: 1500
Record: 2-2
| Grand Prix Philadelphia 2008 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 21 | Haugh, Zach (1522) | Lost 1-2 | -181482 |
| 2extended | 289 | Pskowski, Timothy (1482) | Lost 0-2 | -181464 |
| 3extended | 399 | Townley, Richard (1465) | Won 2-1 | +181482 |
| 4extended | 342 | Bontkowski, Eddie (1446) | Won 2-1 | +181500 |
| average opponent: 1479record: 2-2 | new rating: 1500 | |||