Duckworth, Nathan
Current rating: 1464
Record: 3-5
| Grand Prix Philadelphia 2014 (BNG limited) | starting rating: 1499 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 439 | McKay, Corey (1502) | Lost 0-2 | -181481 |
| 2sealed | 760 | Priestley, Craig (1463) | Won 2-0 | +181499 |
| 3sealed | 394 | Charles, Brian (1536) | Lost 1-2 | -171482 |
| 4sealed | 779 | Chirchirillo, Nick (1482) | Lost 1-2 | -181464 |
| average opponent: 1496record: 1-3 | new rating: 1464 | |||
| Grand Prix Philadelphia 2012 (RTR limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 148 | Eggenburg, Seth (1500) | Lost 0-2 | -181482 |
| 2sealed | 380 | Weaver, Kyle (1455) | Won 2-0 | +181500 |
| 3sealed | 311 | Lilly, Dakota (1449) | Won 2-0 | +171517 |
| 4sealed | 295 | Lowry, Anthony (1547) | Lost 1-2 | -181499 |
| average opponent: 1488record: 2-2 | new rating: 1499 | |||