Medlock, John
Current rating: 1447
Record: 1-4
| Grand Prix Dallas-Fort Worth 2011 (MBS standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 18 | Lai, Tim P (1500) | Won 2-1 | +181518 |
| 2standard | 208 | Laprarie, Calvis R (1501) | Lost 0-2 | -181500 |
| 3standard | 236 | Horne, Alan (1555) | Lost 1-2 | -171483 |
| 4standard | 495 | Boggs, Michael A (1481) | Lost 0-2 | -181465 |
| 5standard | 485 | Taylor, Jason 5300 (1463) | Lost 0-2 | -181447 |
| average opponent: 1500record: 1-4 | new rating: 1447 | |||