Griffiths, William G
Current rating: 1415
Record: 3-8
| Grand Prix Nashville 2010 (SOM limited) | starting rating: 1467 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 476 | Lewsader, Dave (1500) | Lost 0-2 | -171450 |
| 2sealed | 616 | Dvorzsak, Devon (1483) | Lost 0-2 | -181432 |
| 3sealed | 717 | Lancaster, Jeff D (1464) | Lost 0-2 | -171415 |
| average opponent: 1482record: 0-3 | new rating: 1415 | |||
| Grand Prix Atlanta 2008 (ALA limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 41 | Dospil, Robert (1520) | Won 2-1 | +181518 |
| 2sealed | 77 | Sandridge, Nicholas (1504) | Won 2-0 | +181536 |
| 3sealed | 106 | Rondon, Miguel (1537) | Lost 1-2 | -181518 |
| 4sealed | 214 | Mills, Michael (1432) | Lost 0-2 | -191499 |
| 5sealed | 215 | Chenevert, Ryan (1512) | Won 2-1 | +181517 |
| 6sealed | 160 | Pelcak, John (1771) | Lost 0-2 | -141503 |
| 7sealed | 147 | Cannon, Christopher (1486) | Lost 0-2 | -181485 |
| 8sealed | 137 | Blair, Taylor (1481) | Lost 0-2 | -181467 |
| average opponent: 1530record: 3-5 | new rating: 1467 | |||