| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. Jansa vs J Lechtynsky |
| 1-0 | 32 |
1968 |
CSR-ch | C70 Ruy Lopez |
| 2. Jansa vs J Lechtynsky |
| ½-½ | 21 |
1970 |
Havirov | B50 Sicilian |
| 3. J Lechtynsky vs Jansa |
| ½-½ | 19 |
1971 |
CSR-ch int | B08 Pirc, Classical |
| 4. Jansa vs J Lechtynsky |
| 1-0 | 55 |
1972 |
Trinec | B52 Sicilian, Canal-Sokolsky (Rossolimo) Attack |
| 5. J Lechtynsky vs Jansa |
| 0-1 | 32 |
1973 |
CSR-ch | B44 Sicilian |
| 6. Jansa vs J Lechtynsky |
| 1-0 | 37 |
1974 |
CSR-ch | C84 Ruy Lopez, Closed |
| 7. Jansa vs J Lechtynsky |
| ½-½ | 38 |
1975 |
CSR-ch | B92 Sicilian, Najdorf, Opocensky Variation |
| 8. J Lechtynsky vs Jansa |
| ½-½ | 71 |
1976 |
CSR-ch | D91 Grunfeld, 5.Bg5 |
| 9. J Lechtynsky vs Jansa |
| ½-½ | 20 |
1981 |
Hradec Kralove | D91 Grunfeld, 5.Bg5 |
| 10. Jansa vs J Lechtynsky |
| ½-½ | 13 |
1982 |
Trnava | C41 Philidor Defense |
| 11. J Lechtynsky vs Jansa |
| ½-½ | 19 |
1983 |
Bratislava | A05 Reti Opening |
| 12. J Lechtynsky vs Jansa |
| ½-½ | 15 |
1984 |
Kragujevac | B40 Sicilian |
| 13. J Lechtynsky vs Jansa |
| ½-½ | 20 |
1984 |
Czechoslovakiet | D79 Neo-Grunfeld, 6.O-O, Main line |
| 14. J Lechtynsky vs Jansa |
| ½-½ | 16 |
1984 |
Smederevska Palanka | E62 King's Indian, Fianchetto |
| 15. J Lechtynsky vs Jansa |
| 1-0 | 76 |
1986 |
Prag | D93 Grunfeld, with Bf4 & e3 |
| 16. J Lechtynsky vs Jansa |
| ½-½ | 38 |
1987 |
Namestovo | D89 Grunfeld |
| 17. J Lechtynsky vs Jansa |
| 1-0 | 32 |
1997 |
Pribram op rap | A41 Queen's Pawn Game (with ...d6) |
| 18. J Lechtynsky vs Jansa |
| ½-½ | 17 |
2003 |
Plzen op 9th | A30 English, Symmetrical |
| 19. Jansa vs J Lechtynsky |
| ½-½ | 57 |
2005 |
Czech Championships | C99 Ruy Lopez, Closed, Chigorin, 12...cd |
| 20. J Lechtynsky vs Jansa |
| ½-½ | 72 |
2006 |
Czech Team Championship | A41 Queen's Pawn Game (with ...d6) |