Vaclavik Jr, Petr
Current rating: 1528
| Grand Prix Prague 2014 (modern) | starting rating: 1468 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 244 | Koudelka, Tomas (1548) | Lost 0-2 | -171451 |
| 2modern | 446 | Inerot, Niclas (1471) | Won 2-0 | +191470 |
| 3modern | 570 | Pinnisch, Markus (1500) | Lost 1-2 | -181452 |
| 4modern | 636 | Bamberger, Mark (1491) | Won 2-0 | +191471 |
| 5modern | 384 | Menzel, Peter (1454) | Lost 1-2 | -181453 |
| 6modern | 565 | Knapova, Dominika (1446) | Won 2-1 | +171470 |
| 7modern | 216 | Pignon, Jean-Marie (1436) | Won 2-1 | +181488 |
| 8modern | 250 | Jacomy, Mathieu (1600) | Won 2-0 | +201508 |
| 9modern | 189 | Horvath, Tamas (1647) | Won 2-0 | +201528 |
| top | average opponent: 1510record: 6-3 | new rating: 1528 | ||
| Grand Prix Prague 2013 (M14 limited) | starting rating: 1519 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 401 | Kraft, Lukas (1771) | Lost 0-2 | -141505 |
| 2sealed | 503 | Labruzzo, Ludovico (1482) | Lost 0-2 | -181487 |
| 3sealed | 644 | Gallistl, Pamela (1463) | Won 2-0 | +171504 |
| 4sealed | 614 | Giesser, Thomas (1499) | Lost 1-2 | -181486 |
| 5sealed | 613 | Holvb, Lukas (1465) | Lost 0-2 | -181468 |
| top | average opponent: 1536record: 1-4 | new rating: 1468 | ||
| Grand Prix Prague 2009 (M10 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 22 | Jankowski, Ryszard (1536) | Lost 0-2 | -171483 |
| 2sealed | 218 | Gruschevoi, Kirill (1482) | Lost 1-2 | -181465 |
| 3sealed | 299 | Slunecko, Ondrej (1513) | Won 2-1 | +191484 |
| 4sealed | 248 | Kukucska, Zsolt (1627) | Won 2-0 | +201504 |
| 5sealed | 248 | Dreger, Tobias (1497) | Lost 0-2 | -181486 |
| 6sealed | 262 | Danek, Jirka (1436) | Won 2-1 | +171503 |
| 7sealed | 205 | Hladik, Radek (1504) | Won 2-0 | +181521 |
| 8sealed | 132 | Matyas, Sebastian (1504) | Won 2-1 | +181539 |
| 9sealed | 101 | Bannwinkler, Benjamin (1422) | Lost 0-2 | -201519 |
| top | average opponent: 1502record: 5-4 | new rating: 1519 | ||