Pietrasz, Jacob
Current rating: 1501
Record: 4-4
| Grand Prix Boston 2001 (PLS limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 85 | Napolitano, Nicholas (1500) | Lost 0-2 | -181482 |
| 2sealed | 219 | Paskewich, Brian (1482) | Won 2-1 | +181500 |
| 3sealed | 163 | Dailey Jr., William (1465) | Lost 1-2 | -191481 |
| 4sealed | 217 | Emmert, Jeff (1483) | Won 2-1 | +181499 |
| 5sealed | 152 | Harvey, Eugene (1483) | Lost 0-2 | -181481 |
| 6sealed | 140 | Rookey, Karl (1499) | Won 2-0 | +181499 |
| 7sealed | 113 | Hill, Brenden (1499) | Won 2-0 | +181517 |
| 8sealed | 83 | Mondragon, Daniel (1620) | Lost 0-2 | -161501 |
| average opponent: 1504record: 4-4 | new rating: 1501 | |||