Thompson, William S
Current rating: 1403
| Grand Prix Nashville 2010 (SOM limited) | starting rating: 1394 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 117 | Grigsby, Tyne (1500) | Lost 1-2 | -161378 |
| 2sealed | 254 | Nelms, Andrew (1482) | Won 2-0 | +201398 |
| 3sealed | 200 | Bauman, Eric (1499) | Draw 1-1 | +21400 |
| 4sealed | 236 | Skinner, Steven (1500) | Won 2-1 | +191419 |
| 5sealed | 167 | Bivins, Lance D (1518) | Lost 0-2 | -161403 |
| top | average opponent: 1500record: 2-2-1 | new rating: 1403 | ||
| Grand Prix Orlando 2004 (Mirrodin block) | starting rating: 1446 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 42 | Miller, Kevin (1500) | Lost 1-2 | -181428 |
| 2block | 156 | Gray, James (1458) | Lost 0-2 | -171411 |
| 3block | 192 | Harrison, Chaney (1464) | Lost 0-2 | -171394 |
| top | average opponent: 1474record: 0-3 | new rating: 1394 | ||
| Grand Prix Detroit 2003 (Onslaught block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 54 | Kornet, Andy (1413) | Lost 0-2 | -201480 |
| 2block | 234 | Williams, Carol (1482) | Won 2-0 | +181498 |
| 3block | 155 | Lynch, John (1556) | Lost 0-2 | -171481 |
| 4block | 240 | Badding, Duncan (1482) | Lost 1-2 | -181463 |
| 5block | 219 | Cirunay, Cedric (1464) | Lost 0-2 | -171446 |
| top | average opponent: 1479record: 1-4 | new rating: 1446 | ||