Dickinson, Geoffrey
Current rating: 1465
Record: 1-3
| Grand Prix Minneapolis 2009 (ZEN limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 112 | Peterson, Derick W (1500) | Lost 0-2 | -181482 |
| 2sealed | 506 | Nowicki, Nick (1482) | Won 2-0 | +181500 |
| 3sealed | 254 | souza, justin (1568) | Lost 0-2 | -171483 |
| 4sealed | 381 | Flor Flores, Jaime (1464) | Lost 1-2 | -181465 |
| average opponent: 1504record: 1-3 | new rating: 1465 | |||