Petruska, Tomas
Current rating: 1741 (#4277)
Record: 41-26
| Grand Prix Warsaw 2018 (GRN limited) | starting rating: 1771 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 2 | Karesvuori, Karo (1725) | Won 2-0 | +171788 |
| 4sealed | 35 | Toledo, Daniel (1849) | Lost 1-2 | -161772 |
| 5sealed | 297 | Rozycki, Krzysztof (1634) | Won 2-0 | +151787 |
| 6sealed | 255 | Hovgaard Roth, Rasmus (1662) | Won 2-0 | +161803 |
| 7sealed | 99 | Castro, Miguel (1957) | Lost 1-2 | -151788 |
| 8sealed | 174 | Zlotoiabko, Boris (1711) | Won 2-1 | +161804 |
| 9sealed | 149 | Garczynski, Marcin (1567) | Lost 1-2 | -221782 |
| 10draft | 376 | Kurki, Joonas (1772) | Lost 0-2 | -181764 |
| 11draft | 234 | Kaplan, Adam (1517) | Lost 0-2 | -231741 |
| top | average opponent: 1710record: 4-5 | new rating: 1741 | ||
| Grand Prix Utrecht 2014 (M15 standard) | starting rating: 1697 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 135 | Heersma, Ralf (1518) | Won 2-0 | +151712 |
| 3standard | 145 | Reim, Andreas (1554) | Won 2-1 | +151727 |
| 4standard | 146 | Schuringa, Remco (1376) | Won 2-0 | +121739 |
| 5standard | 71 | Gyhagen, Mikael (1665) | Won 2-1 | +171756 |
| 6standard | 8 | Hillmann, Alexander (1630) | Won 2-1 | +151771 |
| 7standard | 8 | Silva, Joao Paulo (1611) | Won 2-1 | +151786 |
| 8standard | 4 | Fernandez Baillo, Carlos (1780) | Won 2-1 | +181804 |
| 9standard | 3 | van Leeuwen, Arjan (1897) | Lost 1-2 | -161788 |
| 10standard | 3 | Severin, Thoralf (1926) | Lost 0-2 | -161772 |
| 11standard | 22 | Mazza, Murilo (1622) | Lost 0-2 | -201752 |
| 12standard | 67 | Steinborn, Robin (1850) | Lost 0-2 | -161736 |
| 13standard | 77 | Rothen, Christian (1631) | Won 2-0 | +161752 |
| 14standard | 49 | Nystrom, Per (1842) | Won 2-0 | +191771 |
| 15standard | 43 | Langner, Matthias (1857) | ID | 01771 |
| top | average opponent: 1697record: 9-4-1 | new rating: 1771 | ||
| Grand Prix Warsaw 2014 (JOU limited) | starting rating: 1718 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 183 | Casal, Guillem (1447) | Won 2-0 | +131731 |
| 3sealed | 79 | Baldrati, Enrico (1525) | Won 2-1 | +141745 |
| 4sealed | 29 | Viniczai, Tibor (1627) | Lost 1-2 | -201725 |
| 5sealed | 219 | Mattens, Micky (1519) | Lost 1-2 | -211704 |
| 6sealed | 291 | Jeschke, Benjamin (1765) | Won 2-1 | +191723 |
| 7sealed | 182 | Henriques, Bernardo (1548) | Lost 0-0 | -221701 |
| 8sealed | 165 | Barcelona, Alfonso (1707) | Won 2-0 | +191720 |
| 9sealed | 130 | Karpov, Pavel (1475) | Lost 0-2 | -231697 |
| top | average opponent: 1577record: 4-4 | new rating: 1697 | ||
| Grand Prix Vienna 2014 (BNG limited) | starting rating: 1709 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 231 | Kleiner, Sebastian (1745) | Won 2-0 | +191728 |
| 4sealed | 193 | Niedereder, Dominik (1554) | Lost 1-2 | -221706 |
| 5sealed | 218 | Radloff, Tobias (1555) | Won 2-1 | +161722 |
| 6sealed | 63 | Varady, Balazs (1804) | Won 2-1 | +191741 |
| 7sealed | 87 | Preusche, Florian (1560) | Lost 1-2 | -211720 |
| 8sealed | 67 | Zalusky, Dominik (1732) | Lost 1-2 | -181702 |
| 9sealed | 207 | Semkin, Alexander (1580) | Won 2-0 | +161718 |
| top | average opponent: 1647record: 4-3 | new rating: 1718 | ||
| Grand Prix Prague 2014 (modern) | starting rating: 1573 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 232 | Hrudka, Jan (1463) | Won 2-1 | +161589 |
| 2modern | 223 | Weilguni, Sascha (1658) | Won 2-1 | +191608 |
| 3modern | 155 | Dierbach, Patrick (1735) | Won 2-1 | +211629 |
| 4modern | 89 | Van Nieuwenhove, Jan (1704) | Won 2-1 | +191648 |
| 5modern | 5 | Dosimont, Amand (1768) | Lost 0-2 | -161632 |
| 6modern | 89 | Semerad, Petr (1554) | Won 2-0 | +171649 |
| 7modern | 74 | Nikitin, Dmitry (1860) | Won 2-1 | +221671 |
| 8modern | 21 | Dagen, Pierre (1873) | Lost 1-2 | -151656 |
| 9modern | 119 | Petrik, Adam (1580) | Won 2-1 | +171673 |
| 10modern | 86 | Staniucha, Tymoteusz (1599) | Won 2-1 | +171690 |
| 11modern | 56 | Koestler, Jonas (2035) | Won 2-1 | +241714 |
| 12modern | 34 | Kovacek, Nikola (1638) | Lost 0-2 | -201694 |
| 13modern | 35 | Enghardt, Tim (1619) | Won 2-0 | +171711 |
| 14modern | 21 | Tammelleo, Angelo (1563) | Won 2-1 | +151726 |
| 15modern | 17 | Holzinger, Thomas (1766) | Lost 0-2 | -171709 |
| top | average opponent: 1694record: 11-4 | new rating: 1709 | ||
| Grand Prix Prague 2013 (M14 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 172 | Elagin, Artyom (1535) | Won 2-1 | +191519 |
| 2sealed | 225 | Holtin, Benjamin (1668) | Lost 0-2 | -161503 |
| 3sealed | 561 | Bezusek, Pavel (1505) | Won 2-0 | +181521 |
| 4sealed | 448 | Simeon, Fabrice (1463) | Won 2-1 | +171538 |
| 5sealed | 331 | Estratti, Samuele (1887) | Won 2-1 | +241562 |
| 6sealed | 2 | Scerbak, Gabriel (1556) | Won 2-0 | +181580 |
| 7sealed | 28 | Springer, Erik (1545) | Won 2-0 | +181598 |
| 8sealed | 67 | Tapody, Zoltan Istvan (1738) | Won 2-0 | +201618 |
| 9sealed | 9 | Kathriner, Roman (1679) | Lost 0-2 | -171601 |
| 10draft | 77 | Grafensteiner, Daniel (1961) | Won 2-1 | +251626 |
| 11draft | 70 | Kopietz, Matthias (1526) | Lost 1-2 | -201606 |
| 12draft | 22 | Leitner, Benjamin (1780) | Lost 1-2 | -151591 |
| 13draft | 70 | Naslund, David (1606) | Lost 1-2 | -181573 |
| 14draft | 34 | de Graat, Julien (1670) | Lost 1-2 | -161557 |
| 15draft | 27 | Knapova, Dominika (1458) | Won 2-0 | +161573 |
| top | average opponent: 1638record: 9-6 | new rating: 1573 | ||