Jefferson, Adam
Current rating: 1480
Record: 3-4-1
| Grand Prix Seattle-Tacoma 2012 (DKA limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 280 | Viljamaa, Topi (1500) | Lost 0-2 | -181482 |
| 2sealed | 463 | Jacoby, Jared (1482) | Draw 1-1 | 01482 |
| 3sealed | 440 | Reasoner, Eric (1484) | Lost 0-2 | -181464 |
| 4sealed | 517 | Banikasheni, Brian (1465) | Won 2-0 | +181482 |
| 5sealed | 439 | Schultz, Justin (1482) | Won 2-0 | +181500 |
| 6sealed | 346 | Lilly, Christopher (1483) | Lost 1-2 | -181482 |
| 7sealed | 311 | Dvorshak, Devin (1405) | Won 2-1 | +161498 |
| 8sealed | 232 | Clark, Ken (1492) | Lost 0-2 | -181480 |
| average opponent: 1474record: 3-4-1 | new rating: 1480 | |||