Marbaugh, Nathan
Current rating: 1467
Record: 2-4
| Grand Prix Columbus 2004 (DST limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 201 | Opolka, Peter (1500) | Won 2-0 | +181518 |
| 2sealed | 75 | Brown, Aaron (1517) | Won 2-0 | +181536 |
| 3sealed | 114 | Drayer, David (1536) | Lost 0-2 | -181518 |
| 4sealed | 179 | Kastner, Donald (1594) | Lost 0-2 | -171501 |
| 5sealed | 186 | Johnson, Vincent (1590) | Lost 0-2 | -161485 |
| 6sealed | 232 | Schmit, Mark (1481) | Lost 0-2 | -181467 |
| average opponent: 1536record: 2-4 | new rating: 1467 | |||