Boruvka, Petr
Current rating: 1680
Record: 42-28
| Grand Prix Prague 2017 (AER limited) | starting rating: 1713 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 523 | Kostrzewski, Wiktor (1500) | Won 2-1 | +141727 |
| 2sealed | 192 | Goncarov, Jan (1585) | Lost 0-2 | -211706 |
| 3sealed | 766 | Schmidt, Matthias (1502) | Lost 1-2 | -211685 |
| 4sealed | 767 | Loffler, Maximilian (1570) | Won 2-1 | +161701 |
| 5sealed | 547 | Jaccard, Yann-Guillaume (1542) | Lost 0-2 | -211680 |
| top | average opponent: 1540record: 2-3 | new rating: 1680 | ||
| Grand Prix Prague 2015 (ORI standard) | starting rating: 1764 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 3 | Banki, Andras (1500) | Won 2-1 | +131777 |
| 2standard | 192 | Balleur, Clement (1617) | Lost 0-2 | -211756 |
| 3standard | 399 | Kowalczyk, Artur (1502) | Lost 1-2 | -221734 |
| 4standard | 645 | Vardzik, Marek (1555) | Lost 0-2 | -211713 |
| top | average opponent: 1543record: 1-3 | new rating: 1713 | ||
| Grand Prix Krakow 2015 (DTK standard) | starting rating: 1781 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 191 | Zubko, Ilja (1577) | Won 2-0 | +141795 |
| 4standard | 38 | Christiansen, Jeppe Brandt (1508) | Won 2-1 | +131808 |
| 5standard | 466 | Banic, Igor (1596) | Lost 1-2 | -221786 |
| 6standard | 156 | Hribek, Michal (1623) | Lost 1-2 | -211765 |
| 7standard | 252 | Raftery, Roy (1581) | Won 2-1 | +151780 |
| 8standard | 116 | Stihle, Julien (1910) | Lost 0-2 | -161764 |
| top | average opponent: 1632record: 3-3 | new rating: 1764 | ||
| Grand Prix Warsaw 2014 (JOU limited) | starting rating: 1739 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 27 | Golebiowski, Maciej (1578) | Won 2-1 | +151754 |
| 2sealed | 75 | Dolata, Maciej (1518) | Lost 0-2 | -221732 |
| 3sealed | 257 | Tomeczek, Krzysztof (1760) | Won 2-0 | +181750 |
| 4sealed | 299 | Dickmann, Fabian (1878) | Won 2-1 | +211771 |
| 5sealed | 153 | Golab, Maciej (1591) | Won 2-0 | +141785 |
| 6sealed | 114 | Bjorklund, Rasmus (2010) | Won 2-0 | +221807 |
| 7sealed | 76 | Nowicki, Adam (1566) | Won 0-0 | +141821 |
| 8sealed | 28 | Nietupski, Krzysztof (1598) | Won 2-1 | +141835 |
| 9sealed | 10 | Ancona, Michele (1741) | Lost 0-2 | -201815 |
| 10draft | 50 | Bajerowicz, Adam (1648) | Lost 0-2 | -211794 |
| 11draft | 39 | Jarzebowska, Agata (1579) | Lost 0-2 | -221772 |
| 13draft | 51 | Wieczorek, Konrad (1590) | Won 2-1 | +151787 |
| 14draft | 46 | Horosiewicz, Lukas (1556) | Won 2-0 | +141801 |
| 15draft | 37 | Andrzejewski, Alan (1665) | Lost 1-2 | -201781 |
| top | average opponent: 1663record: 9-5 | new rating: 1781 | ||
| Grand Prix Prague 2011 (NPH limited) | starting rating: 1641 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 148 | Hardstam, Johan (1589) | Won 2-1 | +171658 |
| 3sealed | 41 | Bonse, Henrik (1500) | Won 2-1 | +151673 |
| 4sealed | 72 | Loor, Steve (1423) | Lost 1-2 | -221651 |
| 5sealed | 76 | Vavra, Vit (1717) | Won 2-0 | +191670 |
| 6sealed | 58 | Melisek, David (1487) | Won 2-1 | +151685 |
| 7sealed | 42 | Penko, Matic (1617) | Won 2-1 | +161701 |
| 8sealed | 21 | Havel, Jan (1743) | Won 2-0 | +191720 |
| 9sealed | 12 | Deltour, Louis (1791) | Lost 1-2 | -171703 |
| 10draft | 38 | Sokolowski, Konrad (1681) | Won 2-0 | +181721 |
| 11draft | 6 | Ulatowski, Przemyslaw (1565) | Lost 1-2 | -211700 |
| 12draft | 23 | Weidemann, Felix (1905) | Won 2-1 | +221722 |
| 13draft | 39 | Mucha, Eduard (1518) | Won 2-0 | +141736 |
| 14draft | 35 | Nahodil, Petr (1777) | Won 2-0 | +191755 |
| 15draft | 29 | Mazzurco, Carlo (1859) | Lost 1-2 | -161739 |
| top | average opponent: 1655record: 10-4 | new rating: 1739 | ||
| Grand Prix Bochum 2010 (SOM limited) | starting rating: 1607 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 687 | Marienfeld, Lars (1500) | Won 2-0 | +161623 |
| 3sealed | 593 | Jager, Stephan (1536) | Won 2-1 | +161639 |
| 4sealed | 516 | Grafensteiner, Tobias (1823) | Lost 0-2 | -141625 |
| 5sealed | 643 | Possemiers, Ben (1651) | Lost 0-2 | -181607 |
| 6sealed | 651 | Schumann, Ole (1519) | Won 2-0 | +171624 |
| 7sealed | 643 | Richter, Niels (1687) | Won 2-1 | +191643 |
| 8sealed | 584 | Muecke, Sebastian (1522) | Won 2-1 | +151658 |
| 9sealed | 572 | Rosenberger, Alexander (1683) | Lost 0-2 | -171641 |
| top | average opponent: 1615record: 5-3 | new rating: 1641 | ||
| Grand Prix Prague 2009 (M10 limited) | starting rating: 1519 | |||
| round | table | opponent (rating) | result | Δrating |
| 4sealed | 82 | Landgraf, Wolfgang (1470) | Lost 1-2 | -181501 |
| 5sealed | 147 | Silar, Milan (1583) | Won 2-1 | +191520 |
| 6sealed | 106 | Muhlbock, Marc (1606) | Won 2-0 | +201540 |
| 7sealed | 20 | Markos, Daniel (1468) | Won 2-1 | +161556 |
| 8sealed | 31 | Vanek, Jiri (1553) | Lost 0-2 | -181538 |
| 9sealed | 34 | Frischmann, Ludwig (1618) | Won 2-1 | +201558 |
| 10draft | 90 | Melichar, Martin (1666) | Lost 1-2 | -161542 |
| 11draft | 19 | Kanis, Jeroen (1632) | Won 2-1 | +191561 |
| 12draft | 56 | Sinner, Denis (1712) | Lost 0-2 | -151546 |
| 13draft | 93 | Stefan, Jan (1617) | Won 2-0 | +191565 |
| 14draft | 34 | Bosnic, Mitja (1638) | Won 2-1 | +201585 |
| 15draft | 58 | Bohny, Nico (1818) | Won 2-1 | +221607 |
| top | average opponent: 1615record: 8-4 | new rating: 1607 | ||
| Grand Prix Prague 2003 (LGN limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 339 | Skurzynski, Marcin (1500) | Lost 1-2 | -181482 |
| 2sealed | 251 | Lamacka, Matus (1482) | Lost 1-2 | -181464 |
| 3sealed | 365 | Dus, Rene (1413) | Won 2-0 | +171481 |
| 4sealed | 334 | Lamr, Martin (1520) | Won 2-1 | +191500 |
| 5sealed | 311 | Morgenstern, Frank (1504) | Won 2-1 | +181518 |
| 6sealed | 151 | Figard, Alain (1572) | Won 2-0 | +191537 |
| 7sealed | 140 | Heidemann, Martin (1571) | Lost 1-2 | -181519 |
| top | average opponent: 1509record: 4-3 | new rating: 1519 | ||