| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 1. I Jankovec vs J Sikora-Lerch |
| 0-1 | 25 | 1978 | Czechoslovak Championship | A63 Benoni, Fianchetto, 9...Nbd7 |
| 2. I Hausner vs J Sikora-Lerch |
| 1-0 | 57 | 1980 | Czechoslovak Championship | A63 Benoni, Fianchetto, 9...Nbd7 |
| 3. M Pinc vs J Sikora-Lerch |
| 0-1 | 53 | 2001 | Tatry Open | A63 Benoni, Fianchetto, 9...Nbd7 |
| 4. M Beil vs J Sikora-Lerch |
| 0-1 | 51 | 2003 | Olomouc Open | A63 Benoni, Fianchetto, 9...Nbd7 |
| 5. A Kashlinskaya vs J Sikora-Lerch |
| 1-0 | 48 | 2007 | Brno REDA | A63 Benoni, Fianchetto, 9...Nbd7 |
Kibitzing
