| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 26. B Modr vs J Ambroz |
| ½-½ | 59 |
1979 |
Prague Bohemians | C05 French, Tarrasch |
| 27. Plachetka vs J Ambroz |
| ½-½ | 28 |
1979 |
CSR-ch | E00 Queen's Pawn Game |
| 28. J Ambroz vs Petursson |
| ½-½ | 39 |
1979 |
Prague Bohemians | B52 Sicilian, Canal-Sokolsky (Rossolimo) Attack |
| 29. J L Vilela vs J Ambroz |
| ½-½ | 29 |
1979 |
Prague Bohemians | A28 English |
| 30. J Ambroz vs Smejkal |
| ½-½ | 11 |
1979 |
CSR-ch | C77 Ruy Lopez |
| 31. J Ambroz vs H Dobosz |
| ½-½ | 23 |
1979 |
CSR-ch | C03 French, Tarrasch |
| 32. J Ambroz vs J Franzen |
| ½-½ | 34 |
1980 |
Stary Smokovec | C26 Vienna |
| 33. J Lechtynsky vs J Ambroz |
| ½-½ | 26 |
1980 |
CSR-ch | E00 Queen's Pawn Game |
| 34. J Ambroz vs F Trois |
| ½-½ | 24 |
1980 |
Stary Smokovec | C44 King's Pawn Game |
| 35. L Mista vs J Ambroz |
| ½-½ | 44 |
1980 |
CSR-ch | C19 French, Winawer, Advance |
| 36. Ftacnik vs J Ambroz |
| ½-½ | 31 |
1980 |
CSR-ch | A46 Queen's Pawn Game |
| 37. Meduna vs J Ambroz |
| ½-½ | 97 |
1980 |
CSR-ch | E00 Queen's Pawn Game |
| 38. J Ambroz vs J Banas |
| ½-½ | 16 |
1980 |
Stary Smokovec | C25 Vienna |
| 39. J Ambroz vs S Gross |
| ½-½ | 43 |
1980 |
CSR-ch | B52 Sicilian, Canal-Sokolsky (Rossolimo) Attack |
| 40. G Szilagyi vs J Ambroz |
| ½-½ | 24 |
1980 |
Stary Smokovec | E15 Queen's Indian |
| 41. J Sikora-Lerch vs J Ambroz |
| ½-½ | 21 |
1980 |
CSR-ch | C02 French, Advance |
| 42. J Ambroz vs Pribyl |
| ½-½ | 43 |
1981 |
Hradec Kralove | B40 Sicilian |
| 43. J Ambroz vs J Adamski |
| ½-½ | 41 |
1981 |
Bohemians | B22 Sicilian, Alapin |
| 44. Bagirov vs J Ambroz |
| ½-½ | 12 |
1981 |
3, Riga | E42 Nimzo-Indian, 4.e3 c5, 5.Ne2 (Rubinstein) |
| 45. J Ambroz vs Ermenkov |
| ½-½ | 82 |
1981 |
Riga | C44 King's Pawn Game |
| 46. Ivkov vs J Ambroz |
| ½-½ | 22 |
1981 |
Riga | A15 English |
| 47. J Ambroz vs Vogt |
| ½-½ | 10 |
1981 |
It (cat.10) | C55 Two Knights Defense |
| 48. J Ambroz vs Plachetka |
| ½-½ | 19 |
1981 |
Hradec Kralove | B12 Caro-Kann Defense |
| 49. I Novak vs J Ambroz |
| ½-½ | 51 |
1981 |
Bohemians | A15 English |
| 50. J Bielczyk vs J Ambroz |
| ½-½ | 21 |
1981 |
Riga | C00 French Defense |