| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 1. J M Lanz Calavia vs E Gereben |
 | ½-½ | 26 | 1972 | corr EU/M | C30 King's Gambit Declined |
| 2. Dubois vs J M Lanz Calavia |
| 1-0 | 25 | 1973 | corr 1.EU tt | C04 French, Tarrasch, Guimard Main line |
| 3. J M Lanz Calavia vs J Kondali |
| 0-1 | 48 | 1989 | W-ch12 sf corr | C53 Giuoco Piano |
| 4. T Hamarat vs J M Lanz Calavia |
| ½-½ | 69 | 1992 | olm12 qual GP3 B2 corr | C89 Ruy Lopez, Marshall |
| 5. J Obsivac vs J M Lanz Calavia |
| 1-0 | 20 | 1993 | Katowice Fibak Open | A45 Queen's Pawn Game |
| 6. J M Lanz Calavia vs M Fahrbach |
| ½-½ | 30 | 1997 | EM/M/GT/A006 | C45 Scotch Game |
| 7. R Hommel vs J M Lanz Calavia |
| 0-1 | 26 | 1997 | EM/M/GT/A006 | A00 Uncommon Opening |
| 8. C Sender vs J M Lanz Calavia |
| 1-0 | 51 | 1997 | EM/M/GT/A006 | E86 King's Indian, Samisch, Orthodox, 7.Nge2 c6 |
| 9. J M Lanz Calavia vs F Halwick |
| 1-0 | 40 | 1997 | EM/M/GT/A006 | B32 Sicilian |
| 10. J M Johansen vs J M Lanz Calavia |
| 1-0 | 33 | 1997 | EM/M/GT/A006 | A02 Bird's Opening |
| 11. J M Lanz Calavia vs J A S Goncalves |
| 0-1 | 51 | 1997 | EM/M/GT/A006 | B77 Sicilian, Dragon, Yugoslav Attack |
| 12. J M Lanz Calavia vs A Lannaioli |
| 1-0 | 39 | 1997 | EM/M/GT/A006 | C45 Scotch Game |
| 13. M Kantorik vs J M Lanz Calavia |
| 1-0 | 36 | 1997 | W-ch22 sf08 corr | E75 King's Indian, Averbakh, Main line |
| 14. J M Lanz Calavia vs M N Adriano |
| 0-1 | 36 | 1997 | W-ch22 sf08 corr | B62 Sicilian, Richter-Rauzer |
| 15. J M Lanz Calavia vs C A Espindola |
| 0-1 | 26 | 1997 | W-ch22 sf08 corr | C99 Ruy Lopez, Closed, Chigorin, 12...cd |
| 16. J M Lanz Calavia vs H Grabinger |
| 0-1 | 43 | 1997 | W-ch22 sf08 corr | B92 Sicilian, Najdorf, Opocensky Variation |
| 17. J M Lanz Calavia vs P Herb |
| 1-0 | 33 | 1997 | W-ch22 sf08 corr | C70 Ruy Lopez |
| 18. J M Lanz Calavia vs L Ljubicic |
| 0-1 | 38 | 1997 | W-ch22 sf08 corr | C42 Petrov Defense |
| 19. C Stal vs J M Lanz Calavia |
| 1-0 | 35 | 1997 | W-ch22 sf08 corr | E63 King's Indian, Fianchetto, Panno Variation |
| 20. P Tkaczyk vs J M Lanz Calavia |
| 1-0 | 47 | 1997 | W-ch22 sf08 corr | B78 Sicilian, Dragon, Yugoslav Attack, 10.castle long |
| 21. A Baldus vs J M Lanz Calavia |
| 0-1 | 43 | 1997 | W-ch22 sf08 corr | B76 Sicilian, Dragon, Yugoslav Attack |
| 22. J M Lanz Calavia vs C Depasquale |
| ½-½ | 48 | 2000 | ICCF Olympiad XIV preliminary | C02 French, Advance |
| 23. K Foster vs J M Lanz Calavia |
| 1-0 | 19 | 2013 | Friendly game | B02 Alekhine's Defense |
| 24. J M Lanz Calavia vs F Idler |
| 1-0 | 49 | 2015 | EU-chT Cup prel email | C45 Scotch Game |
| 25. J Vivante-Sowter vs J M Lanz Calavia |
| ½-½ | 32 | 2019 | WLS/SRCCC/19/D1 | C45 Scotch Game |
Kibitzing
