Sacks, Jonah
Current rating: 1446
Record: 1-4
| Grand Prix Vancouver 2008 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 85 | Mei, Ken (1500) | Lost 0-2 | -181482 |
| 2extended | 146 | Carlstrom, Logan (1482) | Won 2-0 | +181500 |
| 3extended | 85 | Brooks, Daniel (1482) | Lost 0-2 | -181482 |
| 4extended | 177 | Hirsche-Smith, Wesley (1483) | Lost 0-2 | -181464 |
| 5extended | 162 | Goberti, Enrico Maria (1464) | Lost 1-2 | -181446 |
| average opponent: 1482record: 1-4 | new rating: 1446 | |||