Marek, Jaroslav
Current rating: 1425
Record: 0-4-1
| Grand Prix Prague 2001 (PLS limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 243 | Netrefa, Jiri (1500) | Draw 1-1 | 01500 |
| 2sealed | 163 | Holtz, Jens (1395) | Lost 0-1 | -201480 |
| 3sealed | 236 | Oralek, Matej (1482) | Lost 0-2 | -181462 |
| 4sealed | 271 | Gheorghiu, Vlad (1464) | Lost 0-2 | -181444 |
| 5sealed | 272 | Stranak, Martin (1407) | Lost 0-2 | -191425 |
| average opponent: 1450record: 0-4-1 | new rating: 1425 | |||