Porterfield, Nathan
Current rating: 1481
Record: 2-3
| Grand Prix Dallas 2000 (INV limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 17 | Rutherford, Quillian (1465) | Lost 1-2 | -191481 |
| 2sealed | 87 | Drews, John (1482) | Won 2-0 | +181499 |
| 3sealed | 76 | Fredricksen, Mark (1501) | Won 2-1 | +181517 |
| 4sealed | 73 | Kennison, Koby (1419) | Lost 0-2 | -191498 |
| 5sealed | 92 | Cade, Chris (1561) | Lost 0-2 | -171481 |
| average opponent: 1485record: 2-3 | new rating: 1481 | |||