Perfect, Joel W
Current rating: 1558
Record: 6-3
| Grand Prix Seattle-Tacoma 2012 (DKA limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 170 | Jacobson, Josh (1664) | Won 2-0 | +211521 |
| 2sealed | 112 | HUDON, CHUCK (1518) | Lost 1-2 | -181503 |
| 3sealed | 216 | Wilkins, Chris (1446) | Won 2-0 | +171520 |
| 4sealed | 217 | Kolb, Jon (1518) | Won 2-0 | +181538 |
| 5sealed | 214 | Erickson, Kyle (1484) | Lost 0-2 | -191519 |
| 6sealed | 207 | Chen, Kent (1485) | Won 2-0 | +171536 |
| 7sealed | 216 | Lin, Jianfeng (1503) | Won 2-0 | +181554 |
| 8sealed | 120 | Valle, Amadiz (1595) | Won 2-0 | +181572 |
| 9sealed | 89 | Bau, Philip (1779) | Lost 0-2 | -141558 |
| average opponent: 1555record: 6-3 | new rating: 1558 | |||