Clark, Sam
Current rating: 1437
Record: 4-8
| Grand Prix Philadelphia 2012 (RTR limited) | starting rating: 1472 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 222 | Nguyen, Robert (1436) | Won 2-0 | +171489 |
| 2sealed | 109 | Dixon, Thomas (1561) | Lost 0-2 | -161473 |
| 3sealed | 350 | Rodgers, Ronald (1482) | Lost 1-2 | -181455 |
| 4sealed | 421 | Chen, Jeremy (1484) | Lost 0-2 | -181437 |
| average opponent: 1491record: 1-3 | new rating: 1437 | |||
| Grand Prix Boston-Worcester 2012 (M13 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 45 | Corney, Derrick (1628) | Won 2-1 | +201520 |
| 2sealed | 283 | Howard, David (1832) | Lost 0-2 | -121508 |
| 3sealed | 579 | Manuel, Melvin (1501) | Lost 0-2 | -181490 |
| 4sealed | 716 | Vereb, Kyle (1448) | Won 2-0 | +171507 |
| 5sealed | 587 | Norton, Chris (1461) | Won 2-1 | +171524 |
| 6sealed | 339 | Marshall, Steven (1520) | Lost 1-2 | -181506 |
| 7sealed | 441 | Blanchette, Jamie (1614) | Lost 0-2 | -161490 |
| 8sealed | 386 | White, Timothy (1482) | Lost 1-2 | -181472 |
| average opponent: 1561record: 3-5 | new rating: 1472 | |||