Cosby, Dustin
Current rating: 1446
Record: 0-3
| Grand Prix Oakland 2010 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 168 | Arucan, Mark (1499) | Lost 0-2 | -181482 |
| 2extended | 237 | Duong, Minh (1484) | Lost 0-2 | -181464 |
| 3extended | 309 | Smyth, Jason (1464) | Lost 0-2 | -181446 |
| average opponent: 1482record: 0-3 | new rating: 1446 | |||