| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 1. J Lehmann vs P Ascolese |
| 0-1 | 39 | 1990 | Nassau Chess Club Championship | A04 Reti Opening |
| 2. T Mirabile vs J Lehmann |
| 1-0 | 45 | 1990 | Nassau Chess Club Championship | C03 French, Tarrasch |
| 3. T Kranich-Ritter vs J Lehmann |
| 1-0 | 79 | 1990 | Nassau Chess Club Championship | A07 King's Indian Attack |
| 4. J Lehmann vs T Greco |
| 1-0 | 55 | 1990 | Nassau Chess Club Championship | A04 Reti Opening |
| 5. J Lehmann vs G Klopfenstein |
| 0-1 | 37 | 1990 | Nassau Chess Club Championship | A04 Reti Opening |
| 6. J Salman vs J Lehmann |
| 0-1 | 33 | 1990 | Nassau Chess Club Championship | E12 Queen's Indian |
| 7. J Lehmann vs R Wisbauer |
| 1-0 | 33 | 1990 | Nassau Chess Club Championship | A04 Reti Opening |
| 8. J Lehmann vs J J Felber |
| 0-1 | 22 | 1990 | Nassau Chess Club Championship | A04 Reti Opening |
| 9. H Stenzel vs J Lehmann |
| ½-½ | 51 | 1990 | Nassau Chess Club Championship | C02 French, Advance |
| 10. H Stenzel vs J Lehmann |
| 1-0 | 43 | 1991 | Nassau Chess Club Championship | C01 French, Exchange |
| 11. R Panken vs J Lehmann |
| ½-½ | 73 | 1991 | Nassau Chess Club Championship | C01 French, Exchange |
| 12. J Lehmann vs T J Kearns |
| 0-1 | 51 | 1991 | Nassau Chess Club Championship | A04 Reti Opening |
| 13. J Lehmann vs J M Timmins |
| 0-1 | 23 | 1991 | Nassau Chess Club Championship | A06 Reti Opening |
| 14. G Klopfenstein vs J Lehmann |
| ½-½ | 69 | 1991 | Nassau Chess Club Championship | D04 Queen's Pawn Game |
| 15. J Lehmann vs J J Felber |
| 0-1 | 32 | 1991 | Nassau Chess Club Championship | A04 Reti Opening |
| 16. J Lehmann vs B McCarthy |
| 0-1 | 36 | 1991 | Nassau Chess Club Championship | A06 Reti Opening |
| 17. S Goldstein vs J Lehmann |
| ½-½ | 54 | 1991 | Nassau Chess Club Championship | E40 Nimzo-Indian, 4.e3 |
| 18. M A Ligorio vs J Lehmann |
| 1-0 | 19 | 1992 | Nassau Chess Club Championship | C01 French, Exchange |
| 19. T Kranich-Ritter vs J Lehmann |
| 0-1 | 50 | 1992 | Nassau Chess Club Championship | C00 French Defense |
| 20. J Lehmann vs I Kaplan |
| 0-1 | 42 | 1992 | Nassau Chess Club Championship | A01 Nimzovich-Larsen Attack |
| 21. J M Timmins vs J Lehmann |
| 1-0 | 56 | 1992 | Nassau Chess Club Championship | A40 Queen's Pawn Game |
| 22. E E Jarva vs J Lehmann |
| ½-½ | 70 | 1992 | Nassau Chess Club Championship | A40 Queen's Pawn Game |
| 23. L Chipkin vs J Lehmann |
| ½-½ | 47 | 1992 | Nassau Chess Club Championship | A40 Queen's Pawn Game |
| 24. J Lehmann vs J L Bezviner |
| 0-1 | 42 | 1992 | Nassau Chess Club Championship | A04 Reti Opening |
| 25. J Lehmann vs S A Martin |
| 1-0 | 47 | 1992 | Nassau Chess Club Championship | A04 Reti Opening |
Kibitzing
