Lamb, Jim
Current rating: 1449
| Grand Prix San Antonio 2012 (RTR standard) | starting rating: 1484 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 43 | Dawson, Christian (1517) | Lost 0-2 | -171467 |
| 3standard | 171 | Henderson, Matthew (1498) | Won 2-1 | +181485 |
| 4standard | 236 | Cowser, James (1486) | Lost 0-2 | -181467 |
| 5standard | 250 | Alvey, Josh (1446) | Lost 0-2 | -181449 |
| top | average opponent: 1487record: 1-3 | new rating: 1449 | ||
| Grand Prix Chicago 2012 (modern) | starting rating: 1464 | |||
| round | table | opponent (rating) | result | Δrating |
| 4modern | 89 | Mcclain, Josh (1843) | Lost 1-2 | -111453 |
| 5modern | 89 | Sarsfield, Corey (1526) | Won 2-1 | +191472 |
| 6modern | 89 | Williams, Alex (1514) | Won 2-0 | +191491 |
| 7modern | 89 | Sitarski, Matt (1714) | Lost 1-2 | -141477 |
| 8modern | 89 | Peterson, Jeremy (1501) | Won 2-0 | +181495 |
| 9modern | 89 | Ford, Jason (1886) | Lost 1-2 | -111484 |
| top | average opponent: 1664record: 3-3 | new rating: 1484 | ||
| Grand Prix Austin 2012 (ISD limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 197 | Peters, Scott (1446) | Lost 0-2 | -191481 |
| 3sealed | 202 | Brough, Trenton (1499) | Won 2-0 | +181499 |
| 4sealed | 313 | Rinaldi, John F (1518) | Lost 1-2 | -171482 |
| 5sealed | 327 | Wood, Kevin A (1499) | Lost 0-2 | -181464 |
| top | average opponent: 1491record: 1-3 | new rating: 1464 | ||