Purdy, Alex
Current rating: 1540
Record: 4-2
| Grand Prix Columbus 2004 (DST limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 217 | Chamberlain, Bryan (1518) | Won 2-1 | +181518 |
| 2sealed | 184 | Pannell, Thomas (1614) | Won 2-0 | +201538 |
| 3sealed | 92 | Russell, Kenneth (1601) | Lost 0-2 | -171521 |
| 4sealed | 133 | Jackson, Allen (1580) | Lost 1-2 | -171504 |
| 5sealed | 235 | Jones, Christopher (1484) | Won 2-1 | +181522 |
| 6sealed | 128 | Sharp, Jeff (1518) | Won 2-1 | +181540 |
| average opponent: 1552record: 4-2 | new rating: 1540 | |||