Petersen, Nick d
Current rating: 1498
| Grand Prix Seattle 2009 (ARB standard) | starting rating: 1433 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 310 | Micomonaco, Dominic (1500) | Won 2-0 | +191452 |
| 2standard | 10 | Haney, Jeremy (1437) | Lost 1-2 | -181434 |
| 3standard | 394 | Iler, Shane (1500) | Won 2-0 | +191453 |
| 4standard | 163 | Ling, Justin A (1456) | Won 2-1 | +181471 |
| 5standard | 230 | Thompson, Troy (1537) | Lost 1-2 | -171454 |
| 6standard | 242 | Dipadua, James (1501) | Won 2-0 | +191473 |
| 7standard | 187 | Carpenter, Brad (1582) | Won 2-0 | +201493 |
| 8standard | 85 | Kibler, Brian (1765) | Lost 0-2 | -131480 |
| 9standard | 129 | Winslow, Steven B (1498) | Won 0-0 | +181498 |
| top | average opponent: 1531record: 6-3 | new rating: 1498 | ||
| Grand Prix Los Angeles 2009 (extended) | starting rating: 1485 | |||
| round | table | opponent (rating) | result | Δrating |
| 2extended | 102 | Curiel, Jorge (1518) | Lost 0-2 | -181467 |
| 3extended | 284 | Tyer, Brandon (1500) | Lost 0-2 | -171450 |
| 4extended | 335 | Mcneese, Levi (1482) | Lost 1-2 | -171433 |
| 5extended | 344 | Pangelinan, Patricia (1465) | Won 2-1 | +181451 |
| 6extended | 273 | Beck, Josh (1445) | Lost 1-2 | -181433 |
| top | average opponent: 1482record: 1-4 | new rating: 1433 | ||
| Grand Prix Vancouver 2008 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 38 | Tickson, Devon (1500) | Lost 1-2 | -181482 |
| 2extended | 112 | Walker, Kalib (1504) | Won 2-1 | +181500 |
| 3extended | 124 | McBain, Brenden (1482) | Lost 0-2 | -181482 |
| 4extended | 143 | Ripley, John (1633) | Won 2-1 | +211503 |
| 5extended | 109 | Raney, Tom (1499) | Lost 0-2 | -181485 |
| top | average opponent: 1524record: 2-3 | new rating: 1485 | ||