Andreadakis, Jonathan
Current rating: 1450
Record: 3-6
| Grand Prix Atlanta 2015 (BFZ limited) | starting rating: 1464 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 296 | Tarnowski, Benjamin (1519) | Lost 0-2 | -171447 |
| 2sealed | 826 | Silva, Thiago (1366) | Won 2-0 | +171464 |
| 3sealed | 440 | Cintron, Alex (1483) | Lost 1-2 | -181446 |
| 4sealed | 696 | McCullough, Jacob (1481) | Won 2-0 | +191465 |
| 5sealed | 474 | Heath, Christopher (1682) | Lost 0-2 | -151450 |
| average opponent: 1506record: 2-3 | new rating: 1450 | |||
| Grand Prix Boston 2005 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 202 | Muse, Brian (1500) | Lost 0-2 | -181482 |
| 2extended | 211 | Nader, John (1486) | Won 2-1 | +181500 |
| 3extended | 235 | Jordon, Derek (1501) | Lost 1-2 | -181482 |
| 4extended | 275 | Murray, Steve (1482) | Lost 0-2 | -181464 |
| average opponent: 1492record: 1-3 | new rating: 1464 | |||