Jurkovsky, Ondrej
Current rating: 1564
Record: 17-13-2
| Grand Prix Prague 2011 (NPH limited) | starting rating: 1547 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 28 | Cajthaml, Miroslav (1500) | Won 2-0 | +171564 |
| 2sealed | 136 | Sedlak, Jiri (1518) | Lost 0-2 | -191545 |
| 3sealed | 177 | Stangl, Alexander (1414) | Won 2-0 | +161561 |
| 4sealed | 174 | Durand, Guillaume (1662) | Lost 0-2 | -161545 |
| 5sealed | 190 | Maier, Jordan (1653) | Won 2-0 | +201565 |
| 6sealed | 107 | Monsen, Patrick (1530) | Won 2-0 | +171582 |
| 7sealed | 61 | Parfus, Leos (1440) | Won 2-0 | +151597 |
| 8sealed | 50 | Ortmann, Christoph (1683) | Lost 1-2 | -161581 |
| 9sealed | 66 | Weidemann, Paul (1612) | Lost 1-2 | -171564 |
| top | average opponent: 1557record: 5-4 | new rating: 1564 | ||
| Grand Prix Prague 2009 (M10 limited) | starting rating: 1572 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 25 | Jalaksa, Filip (1500) | Lost 1-2 | -191553 |
| 2sealed | 229 | Bubnowski, Magdalena (1482) | Won 2-0 | +171570 |
| 3sealed | 161 | Sedivy, Jan (1500) | Won 2-0 | +171587 |
| 4sealed | 228 | Haken, Adam (1517) | Won 2-1 | +161603 |
| 5sealed | 111 | Pokorny, Gernot (1510) | Lost 0-2 | -191584 |
| 6sealed | 156 | de Rooij, Danny (1614) | Lost 1-2 | -181566 |
| 7sealed | 207 | Coufal, Viktor (1502) | Lost 0-2 | -191547 |
| top | average opponent: 1518record: 3-4 | new rating: 1547 | ||
| Grand Prix Madrid 2008 (EVE limited) | starting rating: 1561 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 108 | Alba Sanchez, Nicolas (1486) | Won 2-0 | +161577 |
| 2sealed | 63 | Nuno, Alfredo (1506) | Lost 1-2 | -191558 |
| 3sealed | 179 | Sanchez, Carlos (1628) | Won 2-0 | +191577 |
| 4sealed | 135 | Mancera Cabezas, Jesus (1518) | Won 2-1 | +171594 |
| 5sealed | 126 | Manchado, Roberto (1535) | Lost 1-2 | -191575 |
| 6sealed | 124 | Banol Rico, Jorge (1518) | Won 2-0 | +171592 |
| 7sealed | 121 | Izquierdo, Ivan (1507) | Lost 1-2 | -201572 |
| top | average opponent: 1528record: 4-3 | new rating: 1572 | ||
| Grand Prix Stuttgart 2007 (LRW limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 14 | Lundgren, Kaj (1500) | Won 2-0 | +181518 |
| 2sealed | 145 | Gotze, Felix (1594) | Won 2-0 | +191537 |
| 3sealed | 65 | Fehr, Christian (1814) | Lost 0-2 | -131524 |
| 4sealed | 163 | Bangert, Uli (1516) | Won 2-0 | +181542 |
| 5sealed | 88 | Sliz, Lukasz (1515) | Draw 1-1 | 01542 |
| 6sealed | 98 | Reifgerste, Carlo (1543) | Lost 0-2 | -181524 |
| 7sealed | 140 | Kaltsas, Kostas (1552) | Draw 1-1 | 01524 |
| 8sealed | 129 | Boucek, Jaroslav (1583) | Won 2-1 | +191543 |
| 9sealed | 113 | Petroll, Timo (1501) | Won 2-0 | +181561 |
| top | average opponent: 1569record: 5-2-2 | new rating: 1561 | ||