Macek, Petr
Current rating: 1485
Record: 8-10
| Grand Prix Brussels 2010 (WWK standard) | starting rating: 1486 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 792 | Svoboda, Petr (1493) | Lost 0-2 | -181468 |
| 2standard | 814 | Benoit, Cyril (1417) | Won 2-0 | +171485 |
| 3standard | 827 | Le, Trung (1500) | Won 2-0 | +181503 |
| 4standard | 753 | Legroux, Simon (1519) | Won 2-1 | +191522 |
| 5standard | 763 | Brozek, Petr (1942) | Won 2-1 | +251547 |
| 6standard | 700 | Bujok, Ruben (1506) | Lost 0-2 | -191528 |
| 7standard | 725 | Van Holsbeeck, Kristof (1754) | Lost 1-2 | -141514 |
| 8standard | 731 | Faber, Manuel (1736) | Lost 0-2 | -141500 |
| 9standard | 722 | Kohl, Reinhold (1670) | Lost 0-2 | -151485 |
| average opponent: 1615record: 4-5 | new rating: 1485 | |||
| Grand Prix Prague 2009 (M10 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 697 | Horalek, Mirek (1500) | Lost 0-2 | -181482 |
| 2sealed | 761 | Princ, Lukas (1481) | Lost 1-2 | -181464 |
| 3sealed | 810 | Brozek, Miroslav (1464) | Won 2-0 | +181482 |
| 4sealed | 757 | Driessen, Roy (1481) | Lost 1-2 | -181464 |
| 5sealed | 824 | Ekman, Axel A (1421) | Lost 0-2 | -191445 |
| 6sealed | 793 | Markvart, Ondrej (1448) | Won 2-0 | +181463 |
| 7sealed | 733 | Manak, Jakub (1465) | Won 2-0 | +181481 |
| 8sealed | 678 | Hermann, Manfred (1593) | Won 2-1 | +201501 |
| 9sealed | 617 | Llano, Enrique (1642) | Lost 0-2 | -151486 |
| average opponent: 1500record: 4-5 | new rating: 1486 | |||