| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 26. R Filchev vs A Kolarov |
| 0-1 | 38 | 1958 | Bulgarian Championship | E45 Nimzo-Indian, 4.e3, Bronstein (Byrne) Variation |
| 27. R Filchev vs P Orev |
| 1-0 | 34 | 1958 | Bulgarian Championship | A10 English |
| 28. R Filchev vs N Padevsky |
| 1-0 | 61 | 1958 | Bulgarian Championship | A13 English |
| 29. F Filipov vs R Filchev |
| 1-0 | 71 | 1958 | Bulgarian Championship | A07 King's Indian Attack |
| 30. J Kaikamdzozov vs R Filchev |
| 0-1 | 38 | 1958 | Bulgarian Championship | C60 Ruy Lopez |
| 31. Z Milev vs R Filchev |
| 1-0 | 31 | 1958 | Bulgarian Championship | A07 King's Indian Attack |
| 32. V Popov vs R Filchev |
| 0-1 | 41 | 1958 | Bulgarian Championship | C66 Ruy Lopez |
| 33. V Prahov vs R Filchev |
| 1-0 | 41 | 1958 | Bulgarian Championship | B56 Sicilian |
| 34. L Sapunov vs R Filchev |
| ½-½ | 56 | 1958 | Bulgarian Championship | C96 Ruy Lopez, Closed |
| 35. J Ajanski vs R Filchev |
| 0-1 | 36 | 1961 | Bulgarian Championship | C93 Ruy Lopez, Closed, Smyslov Defense |
| 36. R Filchev vs I Radulov |
| 0-1 | 68 | 1961 | Bulgarian Championship | A30 English, Symmetrical |
| 37. R Filchev vs L Popov |
| ½-½ | 25 | 1961 | Bulgarian Championship | B40 Sicilian |
| 38. R Filchev vs N Minev |
| ½-½ | 30 | 1961 | Bulgarian Championship | D05 Queen's Pawn Game |
| 39. R Filchev vs Z Milev |
| ½-½ | 17 | 1961 | Bulgarian Championship | B91 Sicilian, Najdorf, Zagreb (Fianchetto) Variation |
| 40. A Drumev vs R Filchev |
| ½-½ | 27 | 1961 | Bulgarian Championship | B94 Sicilian, Najdorf |
| 41. R Filchev vs O Neikirch |
| ½-½ | 57 | 1961 | Bulgarian Championship | A07 King's Indian Attack |
| 42. P Petkov vs R Filchev |
| ½-½ | 41 | 1961 | Bulgarian Championship | B30 Sicilian |
| 43. R Filchev vs T Chipev |
| ½-½ | 20 | 1961 | Bulgarian Championship | A46 Queen's Pawn Game |
| 44. Z Kadrev vs R Filchev |
| 1-0 | 31 | 1961 | Bulgarian Championship | B46 Sicilian, Taimanov Variation |
| 45. V Prahov vs R Filchev |
| 1-0 | 41 | 1961 | Bulgarian Championship | C36 King's Gambit Accepted, Abbazia Defense |
| 46. K Krastev vs R Filchev |
| 0-1 | 60 | 1961 | Bulgarian Championship | C95 Ruy Lopez, Closed, Breyer |
| 47. R Filchev vs K Piskov |
| ½-½ | 25 | 1961 | Bulgarian Championship | A31 English, Symmetrical, Benoni Formation |
| 48. A Milev vs R Filchev |
| ½-½ | 20 | 1961 | Bulgarian Championship | C64 Ruy Lopez, Classical |
| 49. R Filchev vs D Pantaleev |
| ½-½ | 75 | 1961 | Bulgarian Championship | A04 Reti Opening |
| 50. L Spassov vs R Filchev |
| ½-½ | 59 | 1961 | Bulgarian Championship | C76 Ruy Lopez, Modern Steinitz Defense, Fianchetto Variation |
Kibitzing
