| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 26. M Ruderfer vs Stein |
 | 1-0 | 20 | 1972 | URS-ch sf Odessa | B60 Sicilian, Richter-Rauzer |
| 27. I A Zaitsev vs M Ruderfer |
| 0-1 | 52 | 1972 | URS-ch sf Odessa | C63 Ruy Lopez, Schliemann Defense |
| 28. M Mukhin vs M Ruderfer |
| 1-0 | 32 | 1972 | USSR Championship (Young Masters) | C82 Ruy Lopez, Open |
| 29. Tukmakov vs M Ruderfer |
| ½-½ | 43 | 1972 | 12th Soviet Team Championship qual-3 | C69 Ruy Lopez, Exchange, Gligoric Variation |
| 30. G Ustinov vs M Ruderfer |
| 0-1 | 39 | 1972 | 12th Soviet Team Championship qual-3 | A07 King's Indian Attack |
| 31. M Ruderfer vs O Pavlenko |
| 0-1 | 32 | 1972 | Azmiddin Khodzhaev Memorial | E17 Queen's Indian |
| 32. L Grigorian vs M Ruderfer |
| 0-1 | 54 | 1972 | Azmiddin Khodzhaev Memorial | E32 Nimzo-Indian, Classical |
| 33. M Ruderfer vs Tseshkovsky |
| 1-0 | 48 | 1972 | Azmiddin Khodzhaev Memorial | C69 Ruy Lopez, Exchange, Gligoric Variation |
| 34. L Grigorian vs M Ruderfer |
| 1-0 | 66 | 1973 | Azmiddin Khodzhaev Memorial | E39 Nimzo-Indian, Classical, Pirc Variation |
| 35. G Agzamov vs M Ruderfer |
| 1-0 | 42 | 1973 | Azmiddin Khodzhaev Memorial | B44 Sicilian |
| 36. O Pavlenko vs M Ruderfer |
| ½-½ | 41 | 1973 | Azmiddin Khodzhaev Memorial | E04 Catalan, Open, 5.Nf3 |
| 37. V S Zhidkov vs M Ruderfer |
| ½-½ | 46 | 1974 | URS-ch qual | C81 Ruy Lopez, Open, Howell Attack |
| 38. M Ruderfer vs B Katalymov |
| 0-1 | 34 | 1974 | URS-ch qual | E60 King's Indian Defense |
| 39. M Ruderfer vs M Mukhin |
| ½-½ | 21 | 1975 | Azmiddin Khodzhaev Memorial | B52 Sicilian, Canal-Sokolsky (Rossolimo) Attack |
| 40. G Agzamov vs M Ruderfer |
| 0-1 | 38 | 1975 | Azmiddin Khodzhaev Memorial | D86 Grunfeld, Exchange |
| 41. Lutikov vs M Ruderfer |
| 1-0 | 38 | 1975 | Azmiddin Khodzhaev Memorial | E43 Nimzo-Indian, Fischer Variation |
| 42. A Tsamriuk vs M Ruderfer |
| 0-1 | 38 | 1975 | Azmiddin Khodzhaev Memorial | B07 Pirc |
| 43. M Ruderfer vs E Mukhin |
| 1-0 | 35 | 1975 | Azmiddin Khodzhaev Memorial | E91 King's Indian |
| 44. M Ruderfer vs D Kayumov |
| 0-1 | 73 | 1975 | Azmiddin Khodzhaev Memorial | E12 Queen's Indian |
| 45. A Kapengut vs M Ruderfer |
| 1-0 | 21 | 1975 | 13th Soviet Team Championship qual-2 | B46 Sicilian, Taimanov Variation |
| 46. Korchnoi vs M Ruderfer |
| 1-0 | 21 | 1975 | 13th Soviet Team Championship qual-2 | D15 Queen's Gambit Declined Slav |
| 47. M Ruderfer vs Polugaevsky |
| 0-1 | 25 | 1975 | 13th Soviet Team Championship qual-2 | A34 English, Symmetrical |
| 48. G Ustinov vs M Ruderfer |
| 0-1 | 52 | 1975 | 13th Soviet Team Championship qual-2 | E43 Nimzo-Indian, Fischer Variation |
| 49. M Ruderfer vs V Mikenas |
| ½-½ | 30 | 1975 | 13th Soviet Team Championship Final-B | D30 Queen's Gambit Declined |
| 50. O Pavlenko vs M Ruderfer |
| ½-½ | 31 | 1975 | 13th Soviet Team Championship Final-B | E14 Queen's Indian |
Kibitzing
