Pesek, Jiri
Current rating: 1451
Record: 5-8-1
| Grand Prix Prague 2011 (NPH limited) | starting rating: 1448 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 44 | Hanus, Jioi (1500) | Won 2-0 | +191467 |
| 2sealed | 141 | Skoda, Jan (1519) | Lost 0-2 | -181449 |
| 3sealed | 163 | Collins, Richard (1494) | Won 2-1 | +191468 |
| 4sealed | 163 | Estelberger, Christopher (1452) | Lost 0-2 | -181450 |
| 5sealed | 153 | Chermaci, Sorin (1442) | Lost 0-2 | -181432 |
| 6sealed | 183 | Fisera, Petr (1481) | Won 2-0 | +191451 |
| 7sealed | 157 | Schwelm, Enrico (1482) | Draw 1-1 | 01451 |
| average opponent: 1481record: 3-3-1 | new rating: 1451 | |||
| Grand Prix Prague 2009 (M10 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 202 | Lomnicky, Simon (1500) | Won 2-0 | +181518 |
| 2sealed | 25 | Roessler, Pavel (1529) | Lost 1-2 | -181500 |
| 3sealed | 332 | Kanter, Lars (1581) | Won 2-1 | +201520 |
| 4sealed | 207 | Mendl, Michal (1517) | Lost 0-2 | -181502 |
| 5sealed | 226 | Melisek, David (1499) | Lost 1-2 | -181484 |
| 6sealed | 260 | Coufal, Viktor (1484) | Lost 0-2 | -181466 |
| 7sealed | 231 | Pavel, Moraves (1466) | Lost 0-2 | -181448 |
| average opponent: 1511record: 2-5 | new rating: 1448 | |||