Gubbay, David
Current rating: 1394
Record: 0-6
| Grand Prix Houston 2002 (extended) | starting rating: 1445 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 40 | South, Ryan (1500) | Lost 1-2 | -171428 |
| 2extended | 68 | Drake, William (1482) | Lost 1-2 | -171411 |
| 3extended | 101 | Alaniz, Lucio (1464) | Lost 1-2 | -171394 |
| average opponent: 1482record: 0-3 | new rating: 1394 | |||
| Grand Prix Dallas 2000 (INV limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 24 | Crenshaw, Bedford (1469) | Lost 1-2 | -191481 |
| 2sealed | 84 | Saliba, Karim (1482) | Lost 0-2 | -181463 |
| 3sealed | 119 | Bongiovanni, Mauro (1450) | Lost 1-2 | -181445 |
| average opponent: 1467record: 0-3 | new rating: 1445 | |||