Rybar, Marek
Current rating: 1465
Record: 4-7
| Grand Prix Prague 2019 (UMA limited) | starting rating: 1448 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 462 | Halvorsen, Lars (1541) | Won 2-1 | +201468 |
| 2sealed | 431 | Dumas, Philip (1584) | Lost 0-2 | -161452 |
| 3sealed | 798 | Renner, Mark (1430) | Won 2-0 | +181470 |
| 4sealed | 483 | Baudys, Ondrej (1819) | Lost 1-2 | -121458 |
| 5sealed | 843 | Veith, Thomas (1644) | Won 2-1 | +211479 |
| 6sealed | 575 | Traarbach, Charly (1677) | Lost 0-2 | -141465 |
| average opponent: 1616record: 3-3 | new rating: 1465 | |||
| Grand Prix Prague 2011 (NPH limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 543 | Tischer, Andreas (1465) | Lost 1-2 | -191481 |
| 2sealed | 693 | Kouba, Matej (1483) | Won 2-0 | +181499 |
| 3sealed | 682 | Berdou, Dennis (1505) | Lost 1-2 | -171482 |
| 4sealed | 703 | Valousek, Jiri (1483) | Lost 0-2 | -181464 |
| 5sealed | 735 | Rentzsch, Stefan (1611) | Lost 0-2 | -161448 |
| average opponent: 1509record: 1-4 | new rating: 1448 | |||