| event | round | table | player one | result | player two |
| 2004 World Championship | 14 | 35 | Summersberger, Helmut (1829) | Lost 0-2 | Zunko, Bojan (1660) |
| 2010 World Championship | 14 | 120 | Summersberger, Helmut (1833) | Lost 1-2 | Zunko, Bojan (1630) |
| Grand Prix Prague 2011 | 9 | 510 | Summersberger, Helmut (1819) | Lost 1-2 | Zunko, Bojan (1714) |