| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 1. V Musil vs L Lengyel |
| 1-0 | 34 | 1967 | Maribor | B42 Sicilian, Kan |
| 2. L Lengyel vs M Udovcic |
| ½-½ | 40 | 1967 | Maribor | E64 King's Indian, Fianchetto, Yugoslav System |
| 3. Robatsch vs L Lengyel |
| ½-½ | 13 | 1967 | Maribor | C55 Two Knights Defense |
| 4. L Lengyel vs Unzicker |
| ½-½ | 23 | 1967 | Maribor | E17 Queen's Indian |
| 5. W Addison vs L Lengyel |
| 0-1 | 40 | 1967 | Maribor | E46 Nimzo-Indian |
| 6. N Minev vs L Lengyel |
| ½-½ | 17 | 1967 | Maribor | C44 King's Pawn Game |
| 7. L Lengyel vs S Malesic |
| ½-½ | 20 | 1967 | Maribor | D02 Queen's Pawn Game |
| 8. Reshevsky vs L Lengyel |
| ½-½ | 54 | 1967 | Maribor | A14 English |
| 9. L Lengyel vs L Zinn |
| ½-½ | 39 | 1967 | Maribor | D27 Queen's Gambit Accepted, Classical |
| 10. Matulovic vs L Lengyel |
| 0-1 | 66 | 1967 | Maribor | C96 Ruy Lopez, Closed |
| 11. L Lengyel vs A Matanovic |
| ½-½ | 14 | 1967 | Maribor | E12 Queen's Indian |
| 12. Pirc vs L Lengyel |
| ½-½ | 13 | 1967 | Maribor | A04 Reti Opening |
| 13. L Lengyel vs L Crepinsek |
| 1-0 | 42 | 1967 | Maribor | A44 Old Benoni Defense |
| 14. Janosevic vs L Lengyel |
| 1-0 | 26 | 1967 | Maribor | C29 Vienna Gambit |
| 15. L Lengyel vs Ivkov |
| ½-½ | 15 | 1967 | Maribor | D12 Queen's Gambit Declined Slav |
| 16. R Naranja vs L Lengyel |
| ½-½ | 62 | 1970 | Bad Pyrmont | E67 King's Indian, Fianchetto |
| 17. L Lengyel vs J Dueball |
| ½-½ | 20 | 1970 | Bad Pyrmont | A63 Benoni, Fianchetto, 9...Nbd7 |
| 18. K Schiffer vs L Lengyel |
| ½-½ | 18 | 1970 | Bad Pyrmont | D80 Grunfeld |
| 19. O'Kelly vs L Lengyel |
| ½-½ | 15 | 1970 | Bad Pyrmont | D63 Queen's Gambit Declined, Orthodox Defense |
| 20. L Lengyel vs M Gerusel |
| 1-0 | 124 | 1970 | Bad Pyrmont | A25 English |
| 21. K Maeder vs L Lengyel |
| ½-½ | 13 | 1970 | Bad Pyrmont | B80 Sicilian, Scheveningen |
| 22. L Lengyel vs K Klundt |
| ½-½ | 19 | 1970 | Bad Pyrmont | E63 King's Indian, Fianchetto, Panno Variation |
| 23. R Hartoch vs L Lengyel |
| 0-1 | 35 | 1970 | Bad Pyrmont | C69 Ruy Lopez, Exchange, Gligoric Variation |
| 24. L Lengyel vs A Matanovic |
| ½-½ | 19 | 1970 | Bad Pyrmont | E07 Catalan, Closed |
| 25. N Padevsky vs L Lengyel |
| 0-1 | 24 | 1970 | Bad Pyrmont | C91 Ruy Lopez, Closed |
Kibitzing
