Durham, Colin
Current rating: 1483
Record: 1-2
| Grand Prix Memphis 1999 (Urza's block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 2block | 34 | Lestrade, Sean (1518) | Lost 0-0 | -181482 |
| 3block | 86 | Sutton, Ron (1500) | Lost 0-0 | -171465 |
| 4block | 122 | Daniels, Shauna (1482) | Won 0-0 | +181483 |
| average opponent: 1500record: 1-2 | new rating: 1483 | |||