Diamond, Zachary
Current rating: 1465
Record: 2-4
| Grand Prix Seattle 2009 (ARB standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 5 | Zunter, Brian (1563) | Lost 1-2 | -171483 |
| 2standard | 336 | Shannon, Joshua (1482) | Lost 0-2 | -181465 |
| 3standard | 463 | Hyde, Peter L (1463) | Won 2-1 | +181483 |
| 4standard | 482 | Morales, Emilio (1482) | Won 2-0 | +181501 |
| 5standard | 410 | Kirkpatrick, Sean (1498) | Lost 0-2 | -181483 |
| 6standard | 351 | Leboki, Taylor (1480) | Lost 0-2 | -181465 |
| average opponent: 1495record: 2-4 | new rating: 1465 | |||