Clayton, John
Current rating: 1394
Record: 1-7
| Grand Prix Atlanta 2008 (ALA limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 36 | Helton, James B (1500) | Lost 0-2 | -181482 |
| 2sealed | 235 | White, Jon (1488) | Lost 0-2 | -181464 |
| 3sealed | 284 | Abronson, Louis (1464) | Lost 1-2 | -181446 |
| 4sealed | 289 | Steht Jr., Lee (1410) | Won 2-0 | +171463 |
| 5sealed | 241 | Berger, Eric (1608) | Lost 0-2 | -151448 |
| 6sealed | 210 | Ingersoll, Chris (1444) | Lost 1-2 | -181430 |
| 7sealed | 176 | Graham, Chelsea (1428) | Lost 0-2 | -181412 |
| 8sealed | 143 | Villamizar, Daniel (1429) | Lost 0-2 | -181394 |
| average opponent: 1471record: 1-7 | new rating: 1394 | |||