Vosahlik, Petr
Current rating: 1742 (#4257)
Record: 40-25-2
| Grand Prix Bochum 2010 (SOM limited) | starting rating: 1756 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 712 | van den Wouwer, Chris (1420) | Won 2-1 | +121768 |
| 3sealed | 537 | Gerber, Matthias (1468) | Won 2-0 | +131781 |
| 4sealed | 612 | Heinrich, Bjorn (1552) | Won 2-1 | +141795 |
| 5sealed | 502 | Theunis, Johan (1590) | Won 2-1 | +141809 |
| 6sealed | 526 | Ganz, Andreas (1771) | Won 2-0 | +171826 |
| 7sealed | 508 | Hugony, Francesco (1833) | Lost 1-2 | -181808 |
| 8sealed | 526 | Stephan, Juergen (1722) | Won 2-1 | +171825 |
| 9sealed | 522 | Barbier, Guillaume (1758) | Lost 0-2 | -191806 |
| 10sealed | 120 | Meertens, Job (1758) | Lost 1-2 | -191787 |
| 11draft | 92 | Burgold, Lino (1720) | Lost 1-2 | -201767 |
| 12draft | 23 | Loffler, Alexander (1517) | Won 2-0 | +141781 |
| 13draft | 93 | Brambilla, Davide (1785) | Lost 1-2 | -181763 |
| 14draft | 53 | Brusch, Felix (1576) | Lost 1-2 | -211742 |
| top | average opponent: 1652record: 7-6 | new rating: 1742 | ||
| Grand Prix Lyon 2010 (ROE limited) | starting rating: 1683 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 62 | Harloff, Mitja (1527) | Lost 0-2 | -211662 |
| 4sealed | 205 | Pauwels, Shaun (1542) | Won 2-1 | +161678 |
| 5sealed | 117 | Thirouard, Renaud (1539) | Won 2-0 | +151693 |
| 6sealed | 48 | Bottecchia, Gabriele (1718) | Won 2-0 | +191712 |
| 7sealed | 39 | De Las Heras, Cyril (1571) | Won 2-0 | +151727 |
| 8sealed | 16 | Sciesinski, Marcin (1608) | Lost 0-2 | -201707 |
| 9sealed | 56 | Quintyn, Martial (1547) | Won 2-1 | +151722 |
| 10sealed | 19 | Peter, Michael (1623) | Won 2-0 | +161738 |
| 11draft | 37 | Bengtsson, Stefan (1724) | Lost 0-2 | -181720 |
| 12draft | 25 | Florijn, Peter (1589) | Won 2-1 | +161736 |
| 13draft | 62 | Guedj, Thomas (1735) | Lost 1-2 | -181718 |
| 14draft | 26 | Fenaux-Briot, Romain (1829) | Won 2-0 | +201738 |
| 15draft | 21 | Allouchery, Gonzague (1750) | Won 2-0 | +181756 |
| 16draft | 24 | Genest, Brice (1602) | ID | 01756 |
| top | average opponent: 1636record: 9-4-1 | new rating: 1756 | ||
| Grand Prix Brussels 2010 (WWK standard) | starting rating: 1587 | |||
| round | table | opponent (rating) | result | Δrating |
| 4standard | 41 | Lacour, Olivier (1554) | Lost 1-2 | -181569 |
| 5standard | 118 | Brouwer, Julien (1519) | Lost 1-2 | -191550 |
| 6standard | 184 | Strumbelj, Jernej (1447) | Won 2-1 | +161566 |
| 7standard | 134 | Steen, Stendert (1486) | Won 2-1 | +161582 |
| 8standard | 84 | Peelen, Manuel (1539) | Won 2-0 | +181600 |
| 9standard | 69 | Orsini Jones, Marco (1705) | Won 2-1 | +191619 |
| 10standard | 75 | Bokor, Peter (1742) | Lost 1-2 | -151604 |
| 11standard | 88 | Van Holsbeeck, Kristof (1773) | Won 2-0 | +211625 |
| 12standard | 75 | Schmidt, Thomas (1540) | Won 1-0 | +161641 |
| 13standard | 42 | V D Stok, Rene (1588) | Won 2-0 | +171658 |
| 14standard | 33 | Gardner, Daniel J [ENG] (1819) | Won 2-1 | +211679 |
| 15standard | 18 | Wallendorf, Jonas (1985) | Lost 0-2 | -121667 |
| 16standard | 30 | McLeod, Lewis (1567) | Won 2-1 | +161683 |
| top | average opponent: 1636record: 9-4 | new rating: 1683 | ||
| Grand Prix Prague 2009 (M10 limited) | starting rating: 1592 | |||
| round | table | opponent (rating) | result | Δrating |
| 4sealed | 589 | Colombi, Giovanni (1617) | Draw 1-1 | +11593 |
| 5sealed | 550 | Kryvosheiev, Sergii (1477) | Lost 0-2 | -201573 |
| 6sealed | 614 | Fleurackers, Steve (1455) | Won 2-1 | +151588 |
| 7sealed | 571 | Silfver, Ahti (1582) | Won 2-1 | +181606 |
| 8sealed | 540 | Bachura, Miroslav (1547) | Lost 0-2 | -191587 |
| top | average opponent: 1536record: 2-2-1 | new rating: 1587 | ||
| Grand Prix Hanover 2009 (extended) | starting rating: 1517 | |||
| round | table | opponent (rating) | result | Δrating |
| 2extended | 519 | Stefan, Jan (1532) | Draw 1-1 | 01517 |
| 3extended | 484 | Nygaard Kaspersen, Allan (1499) | Won 2-0 | +181535 |
| 4extended | 465 | Michels, Tim (1590) | Won 2-1 | +191554 |
| 5extended | 436 | De Sio, Jakub (1895) | Won 2-0 | +241578 |
| 6extended | 416 | Dobis, David (1748) | Lost 0-2 | -151563 |
| 7extended | 441 | Rosenkranz, Ondrej (1569) | Won 2-1 | +181581 |
| 8extended | 428 | Muller, Andreas (1905) | Won 2-0 | +241605 |
| 9extended | 414 | Schwarz, Sascha (1641) | Lost 0-2 | -181587 |
| 10extended | 61 | Devine, Andrew (1567) | Won 2-0 | +181605 |
| 11extended | 39 | Pils, Florian (1778) | Lost 0-2 | -151590 |
| 12extended | 52 | Meier, Arne (1557) | Won 2-0 | +171607 |
| 13extended | 38 | Geissler, Gunnar (1747) | Won 2-0 | +211628 |
| 14extended | 25 | Musial, Lukasz (1686) | Lost 0-2 | -171611 |
| 15extended | 38 | Lixl, David (1561) | Lost 1-2 | -191592 |
| top | average opponent: 1663record: 8-5-1 | new rating: 1592 | ||
| Grand Prix Vienna 2008 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 60 | Montagner, Fabio (1469) | Won 2-0 | +171517 |
| 2extended | 75 | Guzei, Vlad (1500) | Lost 1-2 | -181499 |
| 3extended | 108 | Nagy, Ferenc (1510) | Lost 0-2 | -181481 |
| 4extended | 246 | Mitza, Mario (1482) | Won 2-0 | +181499 |
| 5extended | 168 | Bertolacci, Beniamino (1504) | Won 2-0 | +181517 |
| 6extended | 128 | Geissler, Gunnar (1509) | Lost 0-2 | -181499 |
| 7extended | 144 | Safcak, Dominik (1471) | Won 2-1 | +181517 |
| 8extended | 107 | Koranda, Tomas (1488) | Won 2-1 | +171534 |
| 9extended | 78 | Zivolic, Antonio (1567) | Lost 1-2 | -171517 |
| top | average opponent: 1500record: 5-4 | new rating: 1517 | ||