Nerdahl, Derek
Current rating: 1495
Record: 6-7
| Grand Prix Atlantic City 2013 (RTR standard) | starting rating: 1473 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 391 | Cuttler, William (1500) | Lost 0-2 | -181455 |
| 2standard | 597 | Fabbro, Daniel (1482) | Won 2-1 | +191474 |
| 3standard | 530 | Wang, Jerry (1517) | Won 2-0 | +181492 |
| 4standard | 488 | King, Stephen 2 (1501) | Lost 1-2 | -171475 |
| 5standard | 486 | Blain, Ezekiel (1510) | Won 2-1 | +181493 |
| 6standard | 399 | Pileggi, Riccardo (1585) | Won 2-1 | +201513 |
| 7standard | 244 | Warner, Adam (1523) | Lost 0-1 | -181495 |
| average opponent: 1517record: 4-3 | new rating: 1495 | |||
| Grand Prix Baltimore 2012 (DKA standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 319 | Ficca, Jordan (1518) | Won 2-0 | +181518 |
| 3standard | 53 | Thomas, Kevin (1634) | Lost 1-2 | -161502 |
| 4standard | 348 | Holden, Michael (1715) | Lost 1-2 | -141488 |
| 5standard | 443 | Truskoski, Timothy (1500) | Lost 0-2 | -181470 |
| 6standard | 525 | Harris, Josh (1581) | Lost 0-2 | -161454 |
| 7standard | 487 | Schabauer, Angela (1463) | Won 2-0 | +191473 |
| average opponent: 1568record: 2-4 | new rating: 1473 | |||