Alleyn, Mark
Current rating: 1466
Record: 1-3
| Grand Prix Columbus 2004 (DST limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 48 | Bagemihl, Christopher (1483) | Won 2-0 | +181518 |
| 3sealed | 107 | Tracy, Kyle (1542) | Lost 1-2 | -181500 |
| 4sealed | 178 | Hammett, Dan (1523) | Lost 0-2 | -171483 |
| 5sealed | 274 | Yurchick, Adam (1555) | Lost 0-2 | -171466 |
| average opponent: 1526record: 1-3 | new rating: 1466 | |||