Girdlestone, John
Current rating: 1482
Record: 2-3
| Grand Prix Columbus 2004 (DST limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 285 | Sharp, Jeff (1500) | Lost 0-2 | -181482 |
| 2sealed | 347 | Schisler, Justin (1482) | Won 2-1 | +181500 |
| 3sealed | 172 | Hefner, Eric (1474) | Lost 0-2 | -181482 |
| 4sealed | 271 | Plachta, Jake (1482) | Won 2-0 | +181500 |
| 5sealed | 196 | Chaulk, Michael (1503) | Lost 0-2 | -181482 |
| average opponent: 1488record: 2-3 | new rating: 1482 | |||