Krejza, Marek
Current rating: 1491
Record: 5-6-1
| Grand Prix Prague 2003 (LGN limited) | starting rating: 1467 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 306 | Cwalina, Andrzej (1529) | Lost 0-2 | -171450 |
| 2sealed | 362 | Kovarik, Josef (1415) | Won 2-1 | +171467 |
| 3sealed | 337 | Delere, Andre (1766) | Lost 0-2 | -121455 |
| 4sealed | 354 | Stefanov, Dragomir (1483) | Won 2-0 | +181473 |
| 5sealed | 239 | Rosner, Tamara (1480) | Won 2-0 | +181491 |
| average opponent: 1535record: 3-2 | new rating: 1491 | |||
| Grand Prix Prague 2001 (PLS limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 117 | Fostik, Pavel (1500) | Won 2-1 | +181518 |
| 2sealed | 76 | Rybalchenko, Andrey (1615) | Lost 1-2 | -161502 |
| 3sealed | 163 | Poszichal, Lubomiz (1500) | Won 2-0 | +181520 |
| 4sealed | 120 | Dvorak, Radoslav (1518) | Draw 1-1 | 01520 |
| 5sealed | 113 | Smrek, Juraj (1585) | Lost 1-2 | -171503 |
| 6sealed | 156 | Koukal, Jifi (1499) | Lost 0-2 | -181485 |
| 7sealed | 189 | Shavlovsky, Vladimir (1482) | Lost 0-2 | -181467 |
| average opponent: 1528record: 2-4-1 | new rating: 1467 | |||