Marek, Jakub
Current rating: 1519
Record: 4-3
| Grand Prix Prague 2013 (M14 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 397 | Asubaev, Amir (1583) | Lost 0-2 | -161484 |
| 2sealed | 509 | Bonnefoy, Adrien (1503) | Won 2-0 | +181502 |
| 3sealed | 424 | Pucko, Izak (1479) | Lost 1-2 | -191483 |
| 4sealed | 594 | Lehmann, Robert (1536) | Won 2-0 | +191502 |
| 5sealed | 403 | Lindner, Andreas (1498) | Won 2-0 | +181520 |
| 6sealed | 333 | Zacka, Ondrej (1432) | Won 2-1 | +171537 |
| 7sealed | 305 | Moudry, Petr (1565) | Lost 0-2 | -181519 |
| average opponent: 1514record: 4-3 | new rating: 1519 | |||