Biedermann, David
Current rating: 1483
Record: 3-5
| Grand Prix Prague 2018 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 231 | Ritter, Simon (1681) | Lost 0-2 | -151485 |
| 2modern | 508 | Grass, Christopher (1584) | Won 2-1 | +201505 |
| 3modern | 600 | Baudys, Ondrej (1851) | Lost 1-2 | -121493 |
| 4modern | 845 | Muller, Meik (1479) | Won 2-1 | +181511 |
| 5modern | 719 | Kohn, Michel (1802) | Lost 0-2 | -131498 |
| 6modern | 742 | La Rocca, Berthold (1661) | Won 2-1 | +211519 |
| 7modern | 482 | van den Oever, Roy (1530) | Lost 1-2 | -181501 |
| 8modern | 582 | Cerny, Michal (1484) | Lost 0-2 | -181483 |
| average opponent: 1634record: 3-5 | new rating: 1483 | |||