| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 26. Alatortsev vs Petrosian |
| ½-½ | 23 |
1950 |
USSR Championship | E56 Nimzo-Indian, 4.e3, Main line with 7...Nc6 |
| 27. Flohr vs Petrosian |
| ½-½ | 22 |
1950 |
USSR Championship | E94 King's Indian, Orthodox |
| 28. Konstantinopolsky vs Petrosian |
 | ½-½ | 38 |
1950 |
USSR Championship | C71 Ruy Lopez |
| 29. Sokolsky vs Petrosian |
 | ½-½ | 19 |
1950 |
USSR Championship | B91 Sicilian, Najdorf, Zagreb (Fianchetto) Variation |
| 30. Petrosian vs Smyslov |
 | ½-½ | 40 |
1950 |
USSR Championship | D29 Queen's Gambit Accepted, Classical |
| 31. Petrosian vs Boleslavsky |
| ½-½ | 29 |
1950 |
USSR Championship | E14 Queen's Indian |
| 32. Petrosian vs Averbakh |
| ½-½ | 20 |
1950 |
Moscow-ch | A46 Queen's Pawn Game |
| 33. Byvshev vs Petrosian |
| ½-½ | 29 |
1950 |
Ch URS (1/2 final) | C84 Ruy Lopez, Closed |
| 34. M Mukhitdinov vs Petrosian |
| ½-½ | 35 |
1951 |
Tashkent m | B32 Sicilian |
| 35. Petrosian vs Botvinnik |
 | ½-½ | 100 |
1951 |
USSR Championship | A46 Queen's Pawn Game |
| 36. M Mukhitdinov vs Petrosian |
| ½-½ | 19 |
1951 |
Tashkent m | B88 Sicilian, Fischer-Sozin Attack |
| 37. Petrosian vs Bronstein |
| ½-½ | 59 |
1951 |
USSR Championship | E19 Queen's Indian, Old Main line, 9.Qxc3 |
| 38. Simagin vs Petrosian |
| ½-½ | 23 |
1951 |
Moscow ch | D59 Queen's Gambit Declined, Tartakower |
| 39. Petrosian vs Keres |
 | ½-½ | 58 |
1951 |
USSR Championship | E14 Queen's Indian |
| 40. Petrosian vs M Mukhitdinov |
| ½-½ | 41 |
1951 |
Tashkent m | A80 Dutch |
| 41. Averbakh vs Petrosian |
| ½-½ | 29 |
1951 |
USSR Championship | B11 Caro-Kann, Two Knights, 3...Bg4 |
| 42. Petrosian vs Geller |
| ½-½ | 23 |
1951 |
USSR Championship | E92 King's Indian |
| 43. M Mukhitdinov vs Petrosian |
| ½-½ | 29 |
1951 |
Tashkent m | B11 Caro-Kann, Two Knights, 3...Bg4 |
| 44. Petrosian vs O Moiseev |
 | ½-½ | 40 |
1951 |
USSR Championship | E53 Nimzo-Indian, 4.e3 |
| 45. Petrosian vs M Mukhitdinov |
| ½-½ | 20 |
1951 |
Tashkent m | A97 Dutch, Ilyin-Genevsky |
| 46. Flohr vs Petrosian |
| ½-½ | 51 |
1951 |
USSR Championship | E64 King's Indian, Fianchetto, Yugoslav System |
| 47. M Mukhitdinov vs Petrosian |
| ½-½ | 51 |
1951 |
Tashkent m | C09 French, Tarrasch, Open Variation, Main line |
| 48. Gligoric vs Petrosian |
| ½-½ | 14 |
1952 |
Stockholm Interzonal | C07 French, Tarrasch |
| 49. Geller vs Petrosian |
| ½-½ | 23 |
1952 |
Budapest | D59 Queen's Gambit Declined, Tartakower |
| 50. Petrosian vs Szily |
| ½-½ | 46 |
1952 |
Budapest | D43 Queen's Gambit Declined Semi-Slav |