Harvilko, Jiri
Current rating: 1488
Record: 6-7
| Grand Prix Prague 2011 (NPH limited) | starting rating: 1470 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 89 | Krupkowski, Grzegorz (1504) | Lost 1-2 | -171453 |
| 2sealed | 188 | Maricak, Milan (1483) | Won 2-0 | +181471 |
| 3sealed | 119 | Halouska, Matej (1481) | Lost 0-2 | -181453 |
| 4sealed | 253 | Stangl, Alexander (1398) | Won 2-1 | +171470 |
| 5sealed | 206 | Edet, Johan (1422) | Won 2-0 | +171487 |
| 6sealed | 145 | Chapelle, Sebastien (1540) | Won 2-1 | +191506 |
| 7sealed | 118 | Zieger, Andre (1509) | Lost 0-2 | -181488 |
| average opponent: 1477record: 4-3 | new rating: 1488 | |||
| Grand Prix Prague 2009 (M10 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 709 | Jerabek, Petr (1529) | Lost 1-2 | -171483 |
| 2sealed | 733 | Lhotak, Jan (1484) | Won 2-1 | +181501 |
| 3sealed | 774 | Lamr, Martin (1676) | Lost 1-2 | -151486 |
| 4sealed | 819 | Csaba, Denes (1463) | Won 2-0 | +171503 |
| 5sealed | 772 | Wouters, Robin (1467) | Lost 1-2 | -181485 |
| 6sealed | 737 | Bartuska, Arved (1665) | Lost 1-2 | -151470 |
| average opponent: 1547record: 2-4 | new rating: 1470 | |||