Guerrero, Philip C
Current rating: 1483
Record: 2-3
| Grand Prix Toronto 2010 (SOM limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 564 | Stewart, John (1556) | Won 2-1 | +191519 |
| 2sealed | 452 | Ziparo, Thomas J (1494) | Lost 0-2 | -181501 |
| 3sealed | 451 | Heal, Nicholas (1482) | Lost 0-2 | -191482 |
| 4sealed | 611 | Fletcher, Sandy (1482) | Won 2-1 | +181500 |
| 5sealed | 532 | Mascioli, Chris (1532) | Lost 0-2 | -171483 |
| average opponent: 1509record: 2-3 | new rating: 1483 | |||