| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 1. Airapetov vs I Slepoy |
| 0-1 | 35 | 1956 | URS-ch qf Frunze | A33 English, Symmetrical |
| 2. N Novotelnov vs I Slepoy |
 | ½-½ | 49 | 1956 | URS-ch sf Leningrad | A36 English |
| 3. E Stoliar vs I Slepoy |
| 1-0 | 42 | 1956 | URS-ch sf Leningrad | A34 English, Symmetrical |
| 4. Spassky vs I Slepoy |
| 1-0 | 42 | 1956 | URS-ch sf Leningrad | D33 Queen's Gambit Declined, Tarrasch |
| 5. I Slepoy vs I Zilber |
| ½-½ | 19 | 1956 | URS-ch sf Leningrad | A64 Benoni, Fianchetto, 11...Re8 |
| 6. I Slepoy vs Tolush |
| ½-½ | 73 | 1956 | URS-ch sf Leningrad | E10 Queen's Pawn Game |
| 7. I Slepoy vs D Rovner |
| 0-1 | 45 | 1956 | URS-ch sf Leningrad | E56 Nimzo-Indian, 4.e3, Main line with 7...Nc6 |
| 8. I Slepoy vs Ragozin |
| ½-½ | 34 | 1956 | URS-ch sf Leningrad | E60 King's Indian Defense |
| 9. I Slepoy vs G Goldberg |
| 0-1 | 34 | 1956 | URS-ch sf Leningrad | D82 Grunfeld, 4.Bf4 |
| 10. I Slepoy vs A Geller |
| ½-½ | 22 | 1956 | URS-ch sf Leningrad | E64 King's Indian, Fianchetto, Yugoslav System |
| 11. I Slepoy vs V Byvshev |
| 0-1 | 55 | 1956 | URS-ch sf Leningrad | E60 King's Indian Defense |
| 12. I Slepoy vs Aronin |
| 0-1 | 31 | 1956 | URS-ch sf Leningrad | A48 King's Indian |
| 13. Y Neishtadt vs I Slepoy |
| ½-½ | 53 | 1956 | URS-ch sf Leningrad | B56 Sicilian |
| 14. V Mikenas vs I Slepoy |
| 1-0 | 33 | 1956 | URS-ch sf Leningrad | D37 Queen's Gambit Declined |
| 15. Lisitsin vs I Slepoy |
| 1-0 | 40 | 1956 | URS-ch sf Leningrad | B21 Sicilian, 2.f4 and 2.d4 |
| 16. P Kondratiev vs I Slepoy |
| 0-1 | 65 | 1956 | URS-ch sf Leningrad | B58 Sicilian |
| 17. A Khasin vs I Slepoy |
| 1-0 | 46 | 1956 | URS-ch sf Leningrad | B58 Sicilian |
| 18. Kotov vs I Slepoy |
| 0-1 | 39 | 1956 | URS-ch sf Leningrad | A36 English |
| 19. I Slepoy vs K Klaman |
| 0-1 | 45 | 1956 | URS-ch sf Leningrad | D02 Queen's Pawn Game |
| 20. V Osnos vs I Slepoy |
| ½-½ | 44 | 1956 | URS-ch sf Leningrad | D37 Queen's Gambit Declined |
| 21. E Mukhin vs I Slepoy |
| 1-0 | 54 | 1958 | Ch URS (Team) (II Group) | B33 Sicilian |
| 22. I Slepoy vs Smyslov |
| 0-1 | 28 | 1959 | 2nd Soviet Spartakiad qual-1 | A47 Queen's Indian |
| 23. Averbakh vs I Slepoy |
| 1-0 | 36 | 1963 | 9th Soviet Team Championship qual-1 | D37 Queen's Gambit Declined |
| 24. N Valiev vs I Slepoy |
| 1-0 | 24 | 1963 | 9th Soviet Team Championship Final-C | B18 Caro-Kann, Classical |
| 25. I Slepoy vs A Kapengut |
| 0-1 | 44 | 1967 | 10th Soviet Team Championship qual-2 | A73 Benoni, Classical, 9.O-O |
Kibitzing
