Ludwikowski, Jan
Current rating: 1428
Record: 2-6-1
| Grand Prix Prague 2009 (M10 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 580 | Uckermann, Jacob (1500) | Lost 1-2 | -181482 |
| 2sealed | 755 | Vojtisek, Michal (1485) | Lost 0-2 | -181464 |
| 3sealed | 837 | Vins, Tomas (1465) | Lost 0-2 | -181446 |
| 4sealed | 855 | Strumbelj, Jernej (1443) | Won 2-1 | +181464 |
| 5sealed | 800 | Podmol, Martin (1465) | Lost 0-2 | -181446 |
| 6sealed | 786 | Aghai-khozani, Hossein (1446) | Lost 0-2 | -181428 |
| 7sealed | 747 | Kvirenc, Radim (1445) | Draw 1-1 | 01428 |
| 8sealed | 700 | Dubec, Lukas (1430) | Lost 1-2 | -181410 |
| 9sealed | 663 | Markvart, Ondrej (1392) | Won 2-1 | +181428 |
| average opponent: 1452record: 2-6-1 | new rating: 1428 | |||