Lamberth, Sampson
Current rating: 1481
Record: 7-8
| Grand Prix Hartford 2018 (modern) | starting rating: 1516 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 48 | Schibanoff, Justin (1631) | Lost 1-2 | -161500 |
| 2modern | 625 | Perry, Michael (1480) | Won 2-1 | +181518 |
| 3modern | 739 | Minerly, Shane (1499) | Lost 1-2 | -181500 |
| 4modern | 596 | Hotnisky, Shawn (1480) | Lost 0-2 | -191481 |
| 5modern | 733 | Skowron, Ryan (1463) | Won 2-1 | +181499 |
| 6modern | 543 | Murphy, Jeremy (1480) | Lost 1-2 | -181481 |
| average opponent: 1505record: 2-4 | new rating: 1481 | |||
| Grand Prix Providence 2016 (KLD standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 313 | Roberson, Rameal (1448) | Lost 1-2 | -191481 |
| 2standard | 432 | Sarkis, Bailey (1482) | Won 2-1 | +181499 |
| 3standard | 426 | Madden, Rory (1502) | Lost 0-2 | -181481 |
| 4standard | 522 | Mitchell, Shane (1491) | Won 2-1 | +181499 |
| 5standard | 285 | Stedge, Aaron (1466) | Won 2-0 | +181517 |
| 6standard | 328 | Al Awadhi, Abdullah (1520) | Lost 0-2 | -181499 |
| 7standard | 320 | Desbiens, Philippe (1524) | Won 2-0 | +181517 |
| 8standard | 208 | Kim, Thomas (1521) | Lost 0-2 | -181499 |
| 9standard | 290 | Evans, Max (1450) | Won 2-0 | +171516 |
| average opponent: 1489record: 5-4 | new rating: 1516 | |||