Gregory, William
Current rating: 1444
| Grand Prix Las Vegas 2017 (modern) (modern) | starting rating: 1446 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 758 | Snapp, Nicholas (1500) | Won 2-1 | +191465 |
| 2modern | 342 | Flor Flores, Jaime (1719) | Won 2-1 | +231488 |
| 3modern | 225 | Gray, William (1468) | Lost 0-2 | -191469 |
| 4modern | 778 | Harabas, Chris (1642) | Lost 1-2 | -151454 |
| 5modern | 884 | Newyear, Keith (1439) | Lost 0-2 | -181436 |
| 6modern | 1020 | Littles, Charles (1590) | Won 2-0 | +211457 |
| 7modern | 778 | Ramirez, Alexander (1728) | Lost 0-2 | -131444 |
| top | average opponent: 1584record: 3-4 | new rating: 1444 | ||
| Grand Prix Los Angeles 2016 (modern) | starting rating: 1453 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 95 | Pauley, Eric (1500) | Won 2-0 | +191472 |
| 2modern | 45 | Paguio, Francis (1501) | Won 2-0 | +181490 |
| 3modern | 193 | Flannery, Shane (1679) | Lost 1-2 | -151475 |
| 4modern | 356 | Yoo, Bradley (1703) | Lost 0-2 | -131462 |
| 5modern | 514 | Bernstein, Andrew (1480) | Lost 0-2 | -181444 |
| 6modern | 825 | Deremer, Andrew (1473) | Won 2-0 | +181462 |
| 7modern | 734 | Soriano, John (1560) | Lost 0-2 | -161446 |
| top | average opponent: 1557record: 3-4 | new rating: 1446 | ||
| Grand Prix San Diego 2015 (ORI standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 73 | Tajonar, Ivan (1435) | Won 2-1 | +171517 |
| 2standard | 103 | Snell, Don (1518) | Won 2-1 | +181535 |
| 3standard | 32 | Burkhart, Corey (1870) | Lost 0-2 | -121523 |
| 4standard | 248 | Thompson, Bruce (1485) | Won 2-1 | +171540 |
| 5standard | 166 | Johnson, Austin (1496) | Lost 0-2 | -191521 |
| 6standard | 230 | Imano, Terry (1486) | Lost 1-2 | -181503 |
| 7standard | 324 | Nguyen, James (1739) | Lost 1-2 | -141489 |
| 8standard | 317 | Perez, Alex (1484) | Lost 0-2 | -181471 |
| 9standard | 272 | Ballaris, Eddie (1467) | Lost 1-2 | -181453 |
| top | average opponent: 1553record: 3-6 | new rating: 1453 | ||