Giamalis, David
Current rating: 1415
Record: 2-7
| Grand Prix Seattle-Tacoma 2015 (legacy) | starting rating: 1446 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 506 | Wong, Elton (1500) | Lost 0-2 | -171429 |
| 2legacy | 744 | Newman, Ryan (1542) | Lost 1-2 | -161413 |
| 3legacy | 890 | Lowe, Jeff (1380) | Lost 0-2 | -181395 |
| 4legacy | 891 | Fox, Allen (1445) | Won 2-0 | +191414 |
| 5legacy | 767 | Racke, Joseph (1462) | Won 2-0 | +181432 |
| 6legacy | 677 | Bohmert, Kai (1482) | Lost 0-2 | -171415 |
| average opponent: 1469record: 2-4 | new rating: 1415 | |||
| Grand Prix Vancouver 2014 (THS standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 64 | Guretzki, Robert (1485) | Lost 1-2 | -181482 |
| 2standard | 358 | Rambarran, Ricardo (1504) | Lost 1-2 | -181464 |
| 3standard | 447 | Chang, Stanley (1465) | Lost 0-2 | -181446 |
| average opponent: 1485record: 0-3 | new rating: 1446 | |||