| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. Karpov vs J Sikora-Lerch |
| 1-0 | 42 |
1966 |
08, Trinec | B24 Sicilian, Closed |
| 2. J Sikora-Lerch vs J Kozma |
| 1-0 | 47 |
1968 |
CSR-ch | D87 Grunfeld, Exchange |
| 3. J Sikora-Lerch vs Smejkal |
| 1-0 | 26 |
1968 |
CSR-ch | D41 Queen's Gambit Declined, Semi-Tarrasch |
| 4. F Blatny vs J Sikora-Lerch |
| 1-0 | 52 |
1968 |
CSR-ch | C84 Ruy Lopez, Closed |
| 5. Filip vs J Sikora-Lerch |
| 1-0 | 32 |
1968 |
CSR-ch | E66 King's Indian, Fianchetto, Yugoslav Panno |
| 6. Hort vs J Sikora-Lerch |
| 1-0 | 20 |
1972 |
Trinec | A31 English, Symmetrical, Benoni Formation |
| 7. Jansa vs J Sikora-Lerch |
| 1-0 | 40 |
1972 |
Trinec | A05 Reti Opening |
| 8. Plachetka vs J Sikora-Lerch |
| 1-0 | 41 |
1974 |
CSR-ch | A72 Benoni, Classical without 9.O-O |
| 9. Uhlmann vs J Sikora-Lerch |
| 1-0 | 26 |
1977 |
Decin | A30 English, Symmetrical |
| 10. V Tukmakov vs J Sikora-Lerch |
| 1-0 | 22 |
1977 |
CSR-ch int | B27 Sicilian |
| 11. Suba vs J Sikora-Lerch |
| 1-0 | 41 |
1977 |
Decin | A36 English |
| 12. Jansa vs J Sikora-Lerch |
| 1-0 | 36 |
1977 |
Decin | B27 Sicilian |
| 13. J Lechtynsky vs J Sikora-Lerch |
| 1-0 | 33 |
1978 |
CSR-ch | A04 Reti Opening |
| 14. J Sikora-Lerch vs Ftacnik |
| 1-0 | 32 |
1978 |
CSSR (ch) 26/190 | B09 Pirc, Austrian Attack |
| 15. Plachetka vs J Sikora-Lerch |
| 1-0 | 42 |
1978 |
Tatran Cup | A04 Reti Opening |
| 16. J Sikora-Lerch vs Smejkal |
| 1-0 | 39 |
1978 |
CSR-ch | A13 English |
| 17. Kholmov vs J Sikora-Lerch |
| 1-0 | 26 |
1979 |
CSR-ch | B36 Sicilian, Accelerated Fianchetto |
| 18. J Ambroz vs J Sikora-Lerch |
| 1-0 | 32 |
1979 |
CSR-ch | B06 Robatsch |
| 19. Vadasz vs J Sikora-Lerch |
| 1-0 | 25 |
1980 |
Skara | A87 Dutch, Leningrad, Main Variation |
| 20. J Sikora-Lerch vs T Drelinkiewicz |
| 1-0 | 32 |
1981 |
Wroclaw-B | C02 French, Advance |
| 21. J Sikora-Lerch vs J Ambroz |
| 1-0 | 23 |
1982 |
CSR-ch | C02 French, Advance |
| 22. J Sikora-Lerch vs Jansa |
| 1-0 | 32 |
1982 |
Frenstat | B21 Sicilian, 2.f4 and 2.d4 |
| 23. J Sikora-Lerch vs Ftacnik |
| 1-0 | 52 |
1988 |
CSSR 46/321 | B87 Sicilian, Fischer-Sozin with ...a6 and ...b5 |
| 24. J Sikora-Lerch vs I Stohl |
 | 1-0 | 72 |
1989 |
Trnava II | B11 Caro-Kann, Two Knights, 3...Bg4 |
| 25. J Lechtynsky vs J Sikora-Lerch |
| 1-0 | 61 |
1989 |
Tirnavia-B | B36 Sicilian, Accelerated Fianchetto |