Williams, Joseph
Current rating: 1454
| Grand Prix Oklahoma City 2013 (THS limited) | starting rating: 1433 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 163 | Garcia, Christian (1500) | Lost 1-2 | -161417 |
| 2sealed | 443 | Dean, Zach (1430) | Won 2-0 | +181435 |
| 3sealed | 437 | Johnson, Chad (1415) | Won 2-1 | +181453 |
| 4sealed | 291 | Smith, RJ (1522) | Lost 1-2 | -171436 |
| 5sealed | 417 | Moore, Dylan (1451) | Won 2-1 | +181454 |
| 6sealed | 389 | Jackson, Kevin (1438) | Won 2-0 | +181472 |
| 7sealed | 203 | Jones, Austin (1486) | Lost 0-2 | -181454 |
| top | average opponent: 1463record: 4-3 | new rating: 1454 | ||
| Grand Prix Prague 2013 (M14 limited) | starting rating: 1445 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 102 | Kratter, Filippo (1561) | Lost 0-2 | -161429 |
| 4sealed | 414 | Diaz, Salvador (1526) | Won 2-1 | +201449 |
| 5sealed | 238 | Schuringa, Sebastiaan (1490) | Won 2-1 | +191468 |
| 6sealed | 99 | Springer, Erik (1528) | Lost 0-2 | -171451 |
| 7sealed | 206 | Rybar, Stepan (1476) | Lost 1-2 | -181433 |
| top | average opponent: 1516record: 2-3 | new rating: 1433 | ||
| Grand Prix Las Vegas 2001 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 73 | Ellis, Ryan (1486) | Lost 1-2 | -181482 |
| 2extended | 132 | Bates, Marcus (1482) | Won 2-0 | +181500 |
| 3extended | 150 | O'Higgins, Tadhg (1500) | Won 2-0 | +181518 |
| 4extended | 135 | Regan, William (1536) | Lost 0-2 | -181500 |
| 5extended | 147 | Emery, Josh (1454) | Lost 1-2 | -191481 |
| 6extended | 127 | Westbrook, Michael (1482) | Lost 0-2 | -181463 |
| 7extended | 118 | White, Donald (1463) | Lost 1-2 | -181445 |
| top | average opponent: 1486record: 2-5 | new rating: 1445 | ||