Parker, William
Current rating: 1532
Record: 9-7
| Grand Prix Charlotte 2015 (modern) | starting rating: 1519 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 1436 | Korner, Nick (1500) | Lost 0-2 | -181501 |
| 2modern | 1494 | Moffitt, Andrew (1445) | Won 2-1 | +171518 |
| 3modern | 1438 | Hughlett, David A (1500) | Won 2-0 | +171535 |
| 4modern | 1384 | Fleming, Dustin C (1553) | Lost 0-2 | -171518 |
| 5modern | 1278 | Farner, Harrison (1500) | Lost 1-2 | -191499 |
| 6modern | 1361 | Godden, Joshua (1455) | Won 2-0 | +181517 |
| 7modern | 1190 | Morris, Tony (1500) | Won 2-1 | +171534 |
| 8modern | 930 | Lamar, Scott (1518) | Won 2-1 | +181552 |
| 9modern | 819 | Heflin, Emily (1455) | Lost 0-2 | -201532 |
| average opponent: 1492record: 5-4 | new rating: 1532 | |||
| Grand Prix Houston 2013 (DGM limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 13 | Green, Brent (1500) | Won 2-1 | +181518 |
| 2sealed | 213 | Cartagena, Jason (1490) | Won 2-0 | +171535 |
| 3sealed | 93 | Leggat, Jim (1519) | Lost 1-2 | -181517 |
| 4sealed | 268 | Stringer, Austin (1520) | Lost 1-2 | -181499 |
| 5sealed | 77 | Borowicz, Brandon (1527) | Won 2-0 | +191518 |
| 6sealed | 142 | Klopchic, Joseph (1572) | Won 2-1 | +191537 |
| 7sealed | 170 | Froiland, Dave (1557) | Lost 0-2 | -181519 |
| average opponent: 1526record: 4-3 | new rating: 1519 | |||