Williamson, Derek
Current rating: 1526
Record: 4-3
| Grand Prix Las Vegas 2017 (limited) (AKH limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 528 | McGrayne, Matt (1537) | Lost 1-2 | -171483 |
| 2sealed | 848 | Choe, Stephan (1482) | Won 2-0 | +181501 |
| 3sealed | 757 | Reiss, Ian (1642) | Lost 0-2 | -161485 |
| 4sealed | 948 | Johnson, Brandon (1497) | Won 2-1 | +181503 |
| 5sealed | 628 | Wainman, Randall (1497) | Won 2-1 | +181521 |
| 6sealed | 582 | Richter, Matthew (1522) | Won 2-1 | +181539 |
| 7sealed | 273 | Woody, Scott (1784) | Lost 0-2 | -131526 |
| average opponent: 1566record: 4-3 | new rating: 1526 | |||