Calvert, David
Current rating: 1447
Record: 1-4-1
| Grand Prix Houston 2002 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 66 | Benavidez, Daniel (1500) | Lost 0-2 | -181482 |
| 2extended | 87 | Majerczyk, Scott (1498) | Draw 1-1 | 01482 |
| 3extended | 95 | Hendrickson, Mark (1482) | Lost 0-2 | -181464 |
| 4extended | 121 | Houser, Charles (1464) | Lost 1-2 | -181446 |
| 5extended | 110 | Allen, Chris (1478) | Won 2-0 | +191465 |
| 6extended | 94 | Haber, Steven (1464) | Lost 0-2 | -181447 |
| average opponent: 1481record: 1-4-1 | new rating: 1447 | |||